121520141347586649662_adm irid - traffic control devices manual_version 2.0 (november 2014)

8/18/2019 121520141347586649662_ADM IRID - Traffic Control Devices Manual_Version 2.0 (November 2014)

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TRAFFIC CONTROL DEVICES MANUAL

Version 2.0 i November 2014

Traffic Control Devices Manual

Version 2.0 - November 2014

Abu Dhabi City Municipality

PO Box 263

Abu Dhabi, United Arab Emirates © Copyright 2014, Abu Dhabi City Municipality. All Rights Reserved.

No part of this document may be reproduced, distributed, or transmitted in any form or by any means without the prior written permission of the Abu Dhabi City Municipality


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Version 2.0 v November 2014

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Version 2.0 Page 2 November 2014

Figure 1-1: Standard Sign Shapes

1.1.2.2 SIZE

The size of a traffic sign is important for two primary reasons:

• Conspicuity: A sign must be of sufficient size to command the attention of drivers.

• Legibility: The legend (text or symbol) of the sign must be of sufficient size to allow recognition and

comprehension by drivers travelling at roadway design speeds.

Legibility is the primary factor determining the size of text based signs such as guide signs. Hence, the size of suchsigns varies depending on the amount of legend, lettering size, style and spacing.

Sizing guide signs on the basis of legibility ensures conspicuity. The parameters affecting guide sign sizing arediscussed in Chapter 4.

Regulatory and warning signs are generally based on symbols rather than text and are generally smaller compared toguide signs. Consequently, conspicuity is as equally important as legibility in sizing such signs. These signs also tendto have standard sizes.

Table 1-1 presents guidelines for selecting appropriate sign sizes for regulatory and warning signs.

Table 1-1

Regulatory and Warning Sign Sizes1,2

Posted Speed3 (kph)

Recommended RegulatorySign Size

4,5 (mm)

Recommended WarningSign Size

6 (mm)

Required Minimum ClearVisibility (m)

40 600 750 50

60 750 900 60

80 900 1200 80

≥ 100 1200 1500 100

Notes:

1. Sizes smaller than the lower limits shall not be used without specific authorisation

2. The sizes for regulatory signs do not apply to parking and freeway control signs

3. Sizes should be based on 85th percentile speeds when these differ significantly from posted speeds

4. Regulatory sign sizes refer to a circle diameter. For the STOP sign, this diameter represents an inscribed circle

5. Warning sign sizes refer to the apex to apex distance of the side of triangular signs. GIVE WAY signs should besized as for warning signs

6. Sizes shown are desirable minimums. Larger signs sizes, particularly for warning signs, may be desirable inparticularly critical situations.


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When placement of STOP or YIELD signs is considered, priority at a shared use path/roadway intersection should be

assigned with consideration of the following:

• Relative speeds of shared use path and roadway users,

• Relative volumes of shared use path and roadway traffic, and• Relative importance of shared use path and roadway.

• Speed should not be the sole factor used to determine priority, as it is sometimes appropriate to give priority to a

high volume shared use path crossing a low volume street, or to a regional shared use path crossing a minor

collector street.

• When priority is assigned, the least restrictive control that is appropriate should be placed on the lower priority

approaches. STOP signs should not be used where YIELD signs would be acceptable.

• A 750 x 750mm STOP sign or a 900 x 900 x 900mm YIELD sign may be used on shared use paths for added

emphasis.

Sign 302 should have a white background with a broad red border for both permanent and temporary trafficmanagement applications.

Figure 2-1: Longitudinal Position of Stop Sign 301 and Give Way Sign 302

2.2.4 GIVE WAY TO PEDESTRIANS SIGN 303

GIVE WAY TO PEDESTRIANS sign 303 requires that vehicles should yield right of way to pedestrians crossing theroadway or waiting to cross the roadway.

Sign 303 should be used in conjunction with PEDESTRIAN CROSSING marking 603 and GIVE WAY marking 602.

Sign 303 should be used in advance of all marked pedestrian crossings which are not otherwise controlled by STOPsign 301, GIVE WAY sign 302 or traffic signals.

Sign 303 should be located on the right side of the roadway 3.0m in advance of GIVE WAY marking 602. GIVE WAYmarking 602 should be at least 3.0m and preferably 6.0m in advance of PEDESTRIAN CROSSING marking 603. Asecond Sign 303 should be provided on the left side of the roadway when a median island or other central island isprovided in advance of the pedestrian crossing.

Sign 303 should have the following colour pattern for both permanent and temporary traffic management applications:

• The upper, GIVE WAY sign should have a white background with a broad red border.

• The lower sign, indicating pedestrians, should have a red background with a white icon and border.


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2.2.5 GIVE WAY TO PEDESTRIANS AND CYCLISTS SIGN 303A

GIVE WAY TO PEDESTRIANS AND CYCLISTS sign 303A requires that vehicles should yield right of way to

pedestrians and cyclists crossing the roadway or waiting to cross the roadway.

Sign 303A should be used in conjunction with PEDESTRIAN CROSSING marking 603 and GIVE WAY marking 602.

Sign 303A should be used in advance of all marked pedestrian and cycle crossings which are not otherwise controlledby STOP sign 301, GIVE WAY sign 302 or traffic signals.

Sign 303A should be located on the right side of the roadway 3.0m in advance of GIVE WAY marking 602. GIVE WAYmarking 602 should be at least 3.0m and preferably 6.0m in advance of PEDESTRIAN CROSSING marking 603. Asecond Sign 303 should be provided on the left side of the roadway when a median island or other central island isprovided in advance of the pedestrian crossing.

Sign 303A should have the following colour pattern for both permanent and temporary traffic management applications:

• The upper, GIVE WAY sign should have a white background with a broad red border.

• The lower sign, indicating a pedestrian and bicycle, should have a red background with a white icon and border.

2.2.6 NO ENTRY SIGN 304

NO ENTRY sign 304 indicates that entry is prohibited to all vehicular traffic.

Sign 304 should be used to prohibit “wrong way” entry to a roadway when confusion may exist as to the direction oftravel of traffic in the roadway.

Sign 304 should be located on the right and left sides of a one-way roadway. Sign 304 should be oriented at 90degrees to the direction of “wrong way” travel.

Sign 304 should have a red background with a white legend and thin white border for both permanent and temporarytraffic management applications.

2.2.7 ONE WAY SIGNS 305 to 307


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ONE WAY signs 305 to 307 indicates that the only permitted direction of travel, in the road or portion of road on whichthey are erected, is in the direction indicated by the arrow on the sign. Signs 305 to 307 may be displayed to indicatedirections straight ahead, to the right, or to the left.

Signs 305 to 307 should be used in preference to NO ENTRY sign 304 in networks of intersecting one-way streets.Signs 306 and 307 should be used to indicate that the direction of travel in streets intersecting the roadway ahead is inone direction towards them and to inhibit the possibility of “wrong way” entry to such streets.

Sign 305 may also be used to indicate that a street is a one-way street in a straight ahead direction (this practice isintended to make drivers aware that when they return to such a street from a private property or a parking area thatthey must turn only in one direction, it being impractical to indicate the direction of travel at all points of access along aone-way street).

When used to indicate the direction of travel in an intersecting street, Signs 306 and 307 should be located on bothsides of the intersecting street so that both signs can be seen clearly by drivers travelling in the through street. Whenused to indicate the direction of travel within a one-way roadway, Sign 305 should be located on the right side of single-

lane one-way streets and on both sides of one-way streets with two or more lanes. If necessary, additional signsshould be strategically placed with respect to local accesses from properties or parking areas (see Figure 2-2).

Signs 305 to 307 should be used for permanent applications and are an exception to the general colour code for thecontrol group of regulatory signs and should have a blue background with a white legend and a thin white border.

Signs 7305 to 7307 should be used for temporary applications and should have a yellow background with a blacklegend and a thin black border.

NOTES:

• In some situations, Movement Regulation Signs 304, 321 through 328, 346, and/or 347 may be used in place of or

in addition to ONE WAY signs to delineate a one-way road system.

• Specific approval should be obtained from the Municipality for one-way system signing.

Figure 2-2: Use of One Way Signs 305 to 307 with Signs 346 and 347


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2.3 MANDATORY MOVEMENT SIGNS2.3.1 INTRODUCTION

The signs in this group are used to indicate actions that must be taken or that are mandatory.

2.3.2 AHEAD ONLY SIGN 321

AHEAD ONLY sign 321 requires that a vehicle should proceed straight ahead in the direction indicated by the arrow onthe sign.

Sign 321 should be located on the right side of a two-way roadway and on the left side of a one-way roadway. Thefunction of the Sign 321 differs from that of the ONE WAY sign 305 in that, while the ONE WAY sign may indicate themandatory direction in a street at a junction, other directions of travel at the junction may be chosen. Sign 321 indicatesthat drivers have no other choice but to proceed straight ahead. A 600mm Sign 321 may be mounted on the post belowa traffic signal when appropriate.

A typical example for the use of Sign 321 would be at a signal-controlled crossroad intersection with a free right turnand a dedicated left turn lane or lanes separated from the through route by a splitter island. In this instance, if the driveris located in one of the through lanes the AHEAD ONLY movement is the only available option and should be signedaccordingly.

Sign 321 should have a blue background with a white icon and a thin white border for permanent applications. For

temporary traffic management applications, Sign 7321 with a yellow background, a black icon and a thin black bordershould be used instead.

2.3.3 TURN RIGHT ONLY SIGN 322 and TURN LEFT ONLY SIGN 323

TURN RIGHT ONLY Sign 322 and TURN LEFT ONLY Sign 323 require that the driver of a vehicle should proceed onlyto the right (or to the left - the arrow direction being reversed) at the junction. Signs 322 or 323 should be located onthe far side of a roadway facing drivers to which they apply.

Signs 322 and 323 should only be used for permanent applications and should have a blue background with a whitelegend and a thin white border.

Signs 7322 and 7323 should be used for temporary applications and should have a yellow background with a blacklegend and a thin black border.


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2.3.4 TURN RIGHT AHEAD ONLY SIGN 324 and TURN LEFT AHEAD ONLYSIGN 325

TURN RIGHT AHEAD ONLY SIGN 324 and TURN LEFT AHEAD ONLY SIGN 325 require that the driver of a vehicleshould proceed only to the right or to the left at the next junction ahead.

Signs 324 or 325 should be located on the right side of a two-way roadway and on the left side of a one-way roadwayat a distance of approximately 50m from the junction to which it applies. Signs 324 or 325 should normally only beprovided when the alignment of the approach to the junction is such that the layout of the junction is not readilyobvious. A 600mm Sign 324 or 325 may be mounted on a post below a traffic signal where appropriate.



2.3.5 PASS EITHER SIDE SIGN 326

PASS EITHER SIDE sign 326 indicates that vehicles may proceed on either side of an obstruction in the roadway,such as a traffic island but may end up on different routes.

Sign 326 should be located on a traffic divider, near the nose of the divider, so that there is a minimum clearance of600mm (absolute minimum 300mm) between the edges of the divider and the sign. The most common application ofSign 326 will be at entrances to collector-distributor roads and road splits.

Sign 326 should only be used for permanent applications and should have a blue background with a white legend anda thin white border.

Sign 7326 should be used for temporary applications and should have a yellow background with a black legend and athin black border.


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2.3.6 KEEP RIGHT SIGN 327 and KEEP LEFT SIGN 328

KEEP RIGHT SIGN 327 and KEEP LEFT SIGN 328 indicate that a vehicle should only proceed on the right, or, on theleft, of an obstruction in the roadway.

Signs 327 and 328 should be located as near as possible to the leading edge of the obstruction so that there is at leasta clearance of 600mm (absolute minimum 300mm) from the closest path of vehicles.

Use of signs 327 and 328 usually applies to traffic islands or refuges in two-way roadways or at the beginning of themedian island when a single carriageway road widens to dual carriageway. When such a condition occurs on a verticalcurve, it may be effective to mount Dual Type 327 or Type 328 signs one above the other.



2.3.7 ROUNDABOUT SIGN 329

ROUNDABOUT sign 329 indicates that a vehicle should proceed only in a counter clockwise direction at a roundaboutahead.

Sign 329 should be located below GIVE WAY sign 302 in advance of the entry to a roundabout when it may not beobvious that the junction ahead is a roundabout on an approach.

Sign 329 should only be used for permanent applications and should have a blue background with a white legend anda thin white border.

Sign 7329 should be used for temporary applications and should have a yellow background with a black legend and athin black border.

2.3.8 U-TURN SIGN 330

U-TURN sign 330 indicates that a vehicle may make a U-turn.


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2.4.3 DUAL SPEED LIMIT SIGN ASSEMBLY 345

Many roadways have one speed limit for cars and another lower speed limit for heavy vehicles. Signing for these

conditions should be done using a DUAL SPEED LIMIT assembly 345 as shown in Figure 2-3.

Figure 2-3: Dual Speed Limit Sign Combination (typical)

The combination is made up of two maximum speed limit signs mounted on a single pole, one above the other showingthe vehicle type. The sign indicating the speed limit for cars should be mounted topmost.

2.4.4 MINIMUM SPEED LIMIT SIGN 346A and MINIMUM SPEED LIMIT ENDSSIGN 346B

Sign 346A Sign 346B

MINIMUM SPEED LIMIT sign 346A prohibits vehicles from travelling at speeds lower the speed in kilometres per hourindicated by a number on such a sign. Sign 346A shall be placed below the applicable MAXIMUM SPEED LIMIT sign.

MINIMUM SPEED LIMIT ENDS sign 346B shall be used to indicate the termination of the minimum speed requirement.


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2.4.5 NO LEFT TURN SIGN 346 and NO RIGHT TURN SIGN 347

NO LEFT TURN SIGN 346 and NO RIGHT TURN SIGN 347 indicate that vehicles should not turn to the left or right, asthe case may be, at the junction or entrance where the signs are displayed.

Signs 346 or 347 should be located on the side of the roadway towards which the illegal turn would be made, not morethan 25m in advance of the point where the prohibition applies.

Signs 346 or 347 should only be used in situations where the turn would be expected to be available under normalcircumstances. Their use is not necessary when roadway geometry clearly indicates that such turns are not intended.

A 600mm Sign 346 or 347 may be mounted on the post below a traffic signal where appropriate.

Signs 346 and 347 should be used for permanent applications should have a white background, a black legend, a thickred diagonal line, and a thick red border.

Signs 7346 and 7347 should be used for temporary applications should have a yellow background, a black legend, athick red diagonal line, and a thick red border.

2.4.6 NO U-TURN SIGN 348

NO U-TURN sign 348 indicates the vehicles may not perform a U-turn at the junction or break in the median islandahead.

Sign 348 should be located not more than 25m in advance of the point to which the prohibition applies and may berepeated at the point of prohibition. A 600mm Sign 348 may be mounted on the post below a traffic signal whereappropriate.

Sign 348 may be required when the parallel carriageway is too narrow to accept safe U-turns or when such amovement cannot safely be accommodated due to limitations in traffic signal timings or where there is a conflict with

pedestrian movements.

Sign 348 may be made specific to a time of day by means of a QUALIFICATION PLATE sign 365 mounted below thesign.

Sign 348 should be used for permanent applications and should have a white background, a black legend, a thick reddiagonal line, and a thick red border.

Sign 7348 should be used for temporary applications and should have a yellow background, black legend, a thick reddiagonal line, and a thick red border.


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2.4.10 NO PEDESTRIANS SIGN 352

NO PEDESTRIANS sign 352 prohibits pedestrians from proceeding beyond the sign.

Sign 352 may be displayed in any position where it is required to prohibit pedestrian movement or access, normallyacross a roadway. Such places may include specific parts of a roadway or junction which pedestrians otherwise mightexpect to be able to use, but which are considered unsafe due to the traffic management arrangements of the road or

junction. Sign 352 should be used with a size of 300mm unless a larger size is warranted for conspicuity.



2.4.11 NO CYCLISTS SIGN 353

NO CYCLISTS sign 353 prohibits cyclists from proceeding beyond the sign.

Sign 353 may be displayed where it is required to prohibit cyclist movement or access. If pedestrian movement oraccess is not otherwise prohibited, cyclists may proceed provided they dismount and walk their cycles. Sign 353 shouldbe used with a size of 300mm unless a larger size is warranted for conspicuity.


Sign 7353 should be used for temporary applications and should have a yellow background, black legend, a thick red

diagonal line, and a thick red border.

2.4.12 NO HORNING SIGN 354

NO HORNING sign 354 prohibits the use of vehicle horns or other similar audible devices within 75m of the sign.


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2.5.4 NO PARKING SIGNS 377 to 379

NO PARKING signs 377 to 379 indicate that vehicle may not be parked at any time along a section of road within 40mof such a sign. Signs 377 to 379 should include an arrow to indicate the direction of application of the restriction fromthe sign.

Signs 377 to 379 should be located on either the right and/or left side of a road as appropriate. The sign face should beparallel to the kerb line or edge of roadway.

The maximum distance between signs to give adequate coverage is 80m. When parking prohibition is applied to asection of roadway for a distance less than 80m, two Signs 377 and 379 should be used, one at each end of thesection of roadway.

Signs 377 to 379 should be used for permanent applications and should have a white background along with redarrow’s and border. The no parking prohibition symbol should have a blue background along with a thick red diagonalline and a thick red border.

Signs 7377 to 7379 should be used for temporary applications and should have a yellow background along with redarrow’s and black border. The no parking prohibition symbol should have a blue background along with a thick reddiagonal line and a thick red border.

2.5.5 TIME LIMITED NO PARKING SIGNS 377 to 379

Signs 377 to 379 may be made specific to a particular time of day by indicating the applicable time periods.

Signs 380 to 382 should be used for permanent applications and should have a white background along with redarrow’s, text and border. The no parking prohibition symbol should have a blue background along with a thick reddiagonal line and a thick red border.

Signs 7380 to 7382 should be used for temporary applications and should have a yellow background along with redarrow’s. The text and border should be black. The no parking prohibition symbol should have a blue background along

with a thick red diagonal line and a thick red border.


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2.5.6 PAY-AND-DISPLAY PARKING SIGNS 383 to 385

PAY-AND-DISPLAY PARKING signs 383 to 385 indicate the appropriate tariff to be paid at the designated paymentpoint. The ticket/notice received must be fixed on the inside of the windscreen of the vehicle so that it can be observedfrom outside the vehicle.

Signs 383 and 385 should be located at each end of a row of parking bays served by a “PAY-AND-DISPLAY” paymentpoint, with the sign face parallel to the kerb line or edge of roadway.

The arrows on the signs indicate the point from which the “PAY-AND-DISPLAY” criteria apply and should point towardsthe payment point.

Sign 384 should be located at intermediate intervals between Signs 383 and 385 when the row of parking bays isconsidered to be of sufficient length as to warrant the provision of additional “PAY-AND-DISPLAY” payment points.

When it is necessary to advise of time limits applicable to the parking area, this should be done using appropriatePARKING TIME LIMIT signs 389 to 391 in addition to Signs 383 to 385.

Signs 383 to 385 should be used for permanent applications and should have a white background, a white on blueparking symbol, green icons, arrow’s and border.

Signs 7383 to 7385 should be used for temporary applications and should be as Signs 383 to 385 but with a yellow

background and black border.

2.5.7 PARKING FOR DISABLED PERSONS SIGNS 386 to 388

PARKING FOR DISABLED PERSONS signs 386 to 388 indicate that the parking area designated by the sign isreserved for use by disabled persons only.

Sign 387 should be used only to identify a single parking bay and should be located on the sidewalk approximately inthe centre of the length or width of the parking bay. In such an application, the arrow is omitted.

In other applications, Signs 386 and 388 should be displayed in a similar manner to that described for NO PARKINGsigns 377 and 379.

Signs 386 to 388 should be used for permanent applications and should have a white background, a white on blueparking and disabled person symbol, green arrows and border.

Signs 7386 to 7388 should be used for temporary applications and should be as Signs 386 to 388 but with a yellowbackground and black border.


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2.5.8 PARKING TIME LIMIT SIGNS 389 to 391

PARKING TIME LIMIT signs 389 to 391 indicate that there are time limits to the use of a parking area. The time limitmay apply in one or both of two ways:

• To the maximum duration of the parking period.

• To the times of day that parking is permitted.

Signs 389 to 391 should include an arrow to indicate the direction of application of the time restrictions indicated on thesign. The messages of Signs 389 to 391 may be varied. The duration of stay limit or the time of day may be omitted ifone or other is not appropriate to the circumstances of the parking area.

Signs 389 to 391 should be displayed in the same manner as NO STOPPING signs 374 to 376 and NO PARKINGsigns 377 to 379 with regard to position and frequency. In areas where mixed prohibitive signs (377 to 379) andpermissive signs (383 to 391) are used, prohibitive and permissive signs may be mounted next to each other witharrows pointing in appropriate directions.

Signs 389 to 391 should be used for permanent applications and should have a white background, a white on blueparking symbol and green text, arrows and border.

Signs 7389 to 7391 should be used for temporary applications and should have a yellow background, a white on blueparking symbol, green arrows and black text and border.

Figure 2-4 illustrates some of the sign combinations possible within the group.

Figure 2-4 Examples of Sign Combinations in the Parking Group

2.5.9 BUS STOP SIGN 392

BUS STOP sign 392 (example) indicates that the section of roadway designated is reserved for the stopping orstanding of buses. Sign 392 should be located at the edge of the sidewalk so that it can be seen by pedestrians andbus drivers (mounted perpendicular to the kerb). It should be positioned near the end of the loading area and indicatethe position for the driver to stop and passengers to queue.

Sign 392 should be used for permanent applications and should have a white background. The sign size and detailsare to be in accordance with the Department of Transport requirements.

Sign 7392 should be used for temporary applications and should have a yellow background. The icon should be offseton a blue background and the horizontal dividing lines should be black. Both Arabic and English text should be also beblack.


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2.5.10 TAXI STAND SIGN 393

TAXI STAND sign 393 indicates that the section of roadway designated is reserved for the stopping or standing of taxisonly.

The space reserved by Sign 393 should not be used for the unattended parking of taxis. Taxis may only stand in thespace while waiting for fares. Taxi stand locations must be approved by the Traffic Police.

Sign 393 should be used for permanent applications and should have a white background. The icon and the horizontaldividing lines should be blue. The border and the Arabic and English text should be red.

Sign 7393 should be used for temporary applications and should have a yellow background. The icon and the

horizontal dividing lines should be black. The border and the Arabic and English text should be black.

2.5.11 DROP-OFF PICK-UP ONLY SIGN 394

DROP-OFF PICK-UP ONLY sign 394 indicates that the section of roadway designated is reserved for dropping off orpicking up passengers only.

The space reserved by Sign 394 should not be used for the unattended parking of any vehicle. Sign 394 may also beused near the beginning of the loading area at bus stops to allow other vehicles to use the bus stop for drop-off and

pick-up. Approval should be obtained from the Municipality before installing Sign 394 at a bus stop.

Sign 394 should be used for permanent applications and should have a white background. The car-and-person iconand the horizontal dividing lines should be blue. The border, the prohibition icon, and the Arabic and English textshould be red.

Sign 7394 should be used for temporary applications and should have a yellow background. The prohibition iconshould be red while the car-and-person icon, horizontal dividing lines, border, as well as the Arabic and English textshould be black.

2.5.12 SCHOOL BUS PARKING ONLY SIGN 395

SCHOOL BUS PARKING ONLY Sign 395 forbids the parking of any other vehicle type apart from school buses in thedesignated area during school hours.

Sign 395 should be used for permanent applications and should have a white background, a white on blue parkingsymbol, green arrows and border. The Arabic and English text should be black.



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2.5.13 SCHOOL BUS ONLY DROP OFF / PICK UP SIGN 396

SCHOOL BUS ONLY DROP OFF / PICK UP Sign 396 forbids other vehicles from parking or dropping off / picking uppersons at the designated area.

Sign 396 should be used for permanent applications and should have a white background. The “School Bus andChildren Present” icon should be black with red flashing lights and stop sign, on a white background. The prohibitionsymbol, horizontal divider lines, border and the Arabic and English text should be red.

2.5.14 LOADING AND UNOADING SIGN 397

LOADING AND UNLOADING sign 397 indicates that vehicles may be parked in the designated area for loading andunloading only, for the indicated period of time.

Sign 397 should be used for permanent applications and should have a white background. The “Vehicle” icon shouldbe black. The border and the Arabic and English text should be red.

2.6 FREEWAY CONTROL SIGNS

The signs in this group indicate which roads are classified as freeways as well as the application, and removal, of the

particular “Rules of the Road” relevant to the use of freeways.

2.6.1 BEGINNING OF FREEWAY SIGN 398

BEGINNING OF FREEWAY sign 398 indicates that a dual carriageway freeway begins and that the various controlsand prohibitions become effective beyond the sign.

Freeway rules invoked by Sign 398 should mean that, except in case of emergency, no person should:

• Operate a non-motorised vehicle on or near the freeway.

• Be on foot on or near the freeway.

• Stop or reverse a vehicle on the roadway.

• Stop, park, or drive on a shoulder, median, or roadside area.

• Drive at a speed less than 70 kph or 30 kph less than the prevailing traffic speed, whichever is lower.

Sign 398 should be located on the right side within the first third of the length of all freeway on ramps and on the rightside, and left side (when a median island is available), when a non-freeway roadway becomes a freeway in a straightahead situation.

Sign 398 must not be used in a temporary form. When a freeway is temporarily downgraded during temporary trafficmanagement, a normal Sign 398 should be located beyond the end of the work area to indicate a return to normalfreeway operation

Sign 398 should have a blue background with a white icon and border.



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2.6.2 END OF FREEWAY SIGN 399

END OF FREEWAY sign 399 indicates that a freeway is about to end and that freeway rules are no longer applicable.

Sign 399 should be located on the right side within the final third of the length of all freeway off-ramps. When a freewayends, but continues as a non-freeway road, Sign 399 should be located on the right side, and on the left side of theroadway (if a median island is available).

If it is required that some of the prohibitions provided for on the freeway be retained, specific prohibition signs shouldbe erected accordingly beyond Sign 399.

Sign 399 should be used for permanent applications and should have a blue background with a white icon and border.The diagonal slash should be red.

Sign 7399 may be used, if required, in a black icon on yellow background form, when temporary traffic management ona freeway is such that the freeway cannot operate to the accepted standards of a freeway.



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3.2 ADVANCE WARNING SIGNS3.2.1 INTRODUCTION

The signs in this group should a ll be used in advance of the hazard or potential hazard to which they relate. Consistentwith this function they have a unique triangular shape in order to attract the attention of drivers sufficiently early for theirmessage to be effective. Advance warning signs are therefore not appropriate to mark or identify the point location ofthe hazard. Hazard marker signs should be used instead for this purpose.

3.2.2 JUNCTION AHEAD SIGNS 401 to 406

JUNCTION AHEAD signs 401 to 406 warn of a junction ahead and are generally used on main roads to indicate thepresence and layout of the junction ahead.

• CROSSROAD AHEAD sign 401

• T-JUNCTION AHEAD sign 402

• SIDE ROAD ON RIGHT AHEAD sign 403

• SIDE ROAD ON LEFT AHEAD sign 404

• STAGGERED RIGHT SIDE FIRST SIDE ROADS AHEAD sign 405

• STAGGERED LEFT SIDE FIRST SIDE ROADS AHEAD sign 406

Signs 401 to 406 should be located on the right side of the roadway at a distance from the junction as indicated inTable 3-1. A SUPPLEMENTARY PLATE sign 589 indicating the distance to the junction to the nearest 20m should beattached below all signs 401 to 406.


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Signs 7407 to 7409 should be used for temporary applications and should be as signs 407 to 409 but with a yellowbackground.

3.2.4 MERGING TRAFFIC SIGNS 410 and 411

MERGING TRAFFIC signs 410 and 411 warn of a junction ahead where two streams of traffic travelling in the samedirection, and of equal priority, are required to merge into one stream.

Sign 410 should be located on the right side of the through roadway at a distance from the junction as indicated inTable 3-1. Sign 411 should be similarly located on the right side of the joining roadway. Sign 411 should only be usedwhen the angle between the two merging roadways makes it difficult to position Sign 410 at a location at permits it tobe viewed from both roadways. Signs 410 and 411 should not be used when the traffic on the joining roadway issubject to stop or give way controls.

Signs 410 and 411 should be used for permanent applications and should have a white background, a black icon, anda thick red border.

Signs 7410 and 7411 should be used for temporary applications and should have a yellow background, a black icon,and a thick red border.

3.2.5 CURVE RIGHT AHEAD SIGN 412 and CURVE LEFT AHEAD SIGN 413

CURVE RIGHT AHEAD sign 412 and CURVE LEFT AHEAD sign 413 warn of a curve in the road ahead in thedirection indicated which requires caution.

Sign 412 should be located on the right side of the roadway at a distance from the start of a right-hand curve asindicated in Table 3-1. A SUPPLEMENTATRY PLATE sign 589 indicating the recommended speed at which the curve

may be safely negotiated should be attached below sign 412. Sign 413 should be used similarly for a left-hand curve.

Signs 412 or 413 should be used in advance of a horizontal curve that can only be negotiated comfortably by reducingspeed by one tenth or more of the operating speed of traffic on the preceding straight. Except in exceptionalcircumstances, these signs should not be used on roadways with a posted speed limit of less than 60kph.





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3.2.6 REVERSE BENDS AHEAD SIGNS 414 and 415

REVERSE BENDS AHEAD signs 414 and 415 warns that there are sharp reverse direction curves in the road ahead.

Signs 414 and 415 should be located on the right side of the roadway at a distance from the start of the first curve asindicated in Table 3-1 and with a clear sight distance. A SUPPLEMENTARY PLATE sign 589 indicating therecommended speed at which the curves may be safely negotiated should be attached below Signs 414 and 415. Thesymbol direction must always be specified so that it is correctly oriented for the first curve or bend to be entered, e.g.,left before right (Sign 414) or right before left (Sign 415).

Signs 414 and 415 should only be displayed when:

• The bends can only be negotiated comfortably by reducing speed by more than one tenth of the operating speed

of traffic on the preceding straight, and/or

• The length of the straight between curves is less than 120m, or

• The nature of the reverse curves is not obvious to approaching drivers.



3.2.7 TWO-WAY TRAFFIC SIGN 416

TWO-WAY TRAFFIC sign 416 warns drivers on a one way roadway that the roadway ahead carries traffic in bothdirections.

Sign 416 should be located on the left and right hand side of a one way roadway at a distance from the start of the twoway roadway as indicated in Table 3-1. A SUPPLEMENTARY PLATE sign 589 indicating the distance to the start oftwo-way traffic may be attached below Sign 416. The sign may be repeated once the two-way section of roadway isfully developed if additional emphasis is needed.

Sign 416 should be used when a one way roadway or carriageway becomes a two way roadway. This conditioncommonly occurs at the end of a dual carriage-way. The sign is therefore commonly used with DUAL CARRIAGEWAYENDS AHEAD sign 424.

Sign 416 should be used for permanent applications and should have a white background, a black icon, and a thick redborder.

Sign 7416 should be used for temporary applications and should have a yellow background, a black icon, and a thickred border.


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3.2.10 ROUNDABOUT AHEAD SIGN 420

ROUNDABOUT AHEAD sign 420 warns of a roundabout ahead.

Sign 420 should be located on the right side of the roadway at a distance from the roundabout as indicated in Table 3-1. A SUPPLEMENTARY PLATE sign 589 indicating the distance to the junction to the nearest 20m should be attachedbelow sign 420. An additional sign may be placed on the left side of a one-way carriageway.

Sign 420 should only be considered for use when it is not obvious at the distance given in Table 3-1 that there is aroundabout ahead.



3.2.11 ROAD NARROWS AHEAD SIGNS 421 to 423

ROADS NARROWS AHEAD signs 421 to 423 warn that the roadway ahead narrows from the right side (421), the leftside (422) or from both sides (423).

Signs 421 to 423 should be used when the width of a roadway is reduced at a quicker rate than would be the case by astandard taper. Hence, the normal application of these should be for temporary narrowing situations at temporary trafficmanagement when the extent of the narrowing is less than a full lane width. If the road width reduction results inreduction in the number of lanes, then LANE ENDS signs 417 or 418 should be used instead.

Signs 421 to 423 should be located on the right side of the roadway

Signs 421 to 423 should be used for permanent applications and should have a white background, a black icon, and athick red border.

Signs 7421 to 7423 should be used for temporary applications and should have a yellow background, a black icon, anda thick red border.


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3.2.19 QUAYSIDE SIGN 431

QUAYSIDE sign 431 warns that there is an unprotected quayside, jetty, or river bank ahead. The icon on Sign 431symbol may be reversed.

Sign 431 should be located on the right side of a roadway which runs directly along the side of a quay, jetty, or riverbank. Sign 431 should, if practical, be positioned in advance of the unprotected quayside, jetty, or river bank by adistance as indicated in Table 3-1.


Sign 7431 should be used for temporary applications and should be as sign 431 but with a yellow background.

3.2.20 DRAWBRIDGE AHEAD SIGN 432

DRAWBRIDGE AHEAD sign 432 warns that there is an opening bridge or drawbridge in the road ahead.

Sign 432 should be located as the result of an engineering assessment, meeting the requirements indicated in Table 3-1, and in consideration of clear sight distance. A SUPPLEMENTARY PLATE sign 589 indicating the distance to thedrawbridge should be attached below sign 432.

Sign 432 should be used for permanent applications and should have a white background, a black icon, and a thick red

border.


3.2.21 ANIMALS AHEAD SIGN 433

ANIMALS AHEAD sign 433 warns of the possible presence of animals on, or adjacent to, the road ahead.

Sign 433 should be located on the right side of the road at a distance from the point at which animals are likely to occurnear the roadway as indicated in Table 3-1. SUPPLEMENTARY PLATE sign 589 may be attached below Sign 433indicating the distance for which the hazard can be expected to occur.

The icon on the sign may be that representing camels, sheep, or goats. If domestic animals are regularly herdedacross roadways, temporary signs displaying the appropriate symbol should be set up in advance of the crossing point.Such signs should preferably indicate the distance to the crossing point.





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3.2.22 LOW-FLYING AIRCRAFT SIGN 434

LOW-FLYING AIRCRAFT sign 434 warns of the presence of low flying aircraft with the potential of sudden and loudaircraft noise.

Sign 434 should be located on the right side of the roadway at a distance from the point where the distraction mayoccur as indicated in Table 3-1.

Sign 434 should only be provided when aircraft are likely to over-fly the roadway or to fly in close proximity to theroadway.



3.2.23 SPEED HUMP SIGN 435

SPEED HUMP sign 435 warns that one or more speed humps exist in the roadway ahead.

Sign 435 should be located on the right side of the roadway at a distance as indicated in Table 3-1. ASUPPLEMENTARY PLATE sign 589 should be provided below Sign 435. This may indicate one or more of thefollowing:

The distance for which speed humps are provided, or an appropriate text message such as “Speed Humps” or “TrafficCalming.”



3.2.24 TUNNEL AHEAD SIGN 436

TUNNEL AHEAD sign 436 warns that there is a tunnel on the roadway ahead which may be subject to reduced lightinglevels or that certain vehicle classes may be not be permitted to enter the tunnel.

Sign 436 should be located on the right side of the road at a distance from the tunnel entrance as indicated in Table 3-1.



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If a prohibition on certain classes of vehicle entering the tunnel exists, Sign 436 should be displayed in combinationwith the relevant regulatory signs. If necessary, Sign 436 may therefore be placed at a greater distance from the tunnelthan given in Table 3-1. On dual carriageway approaches to a tunnel, Sign 436 may be placed on the right and leftsides of the roadway.



3.2.25 FALLING ROCKS SIGN 437

FALLING ROCKS sign 437 warns that there is a risk that rocks may have fallen into the roadway.

The icon on Sign 437 may be reversed.

Sign 437 should be located on the right side of the roadway at a distance in advance of a section of road where the riskof falling rocks exists, as indicated in Table 3-1.

SUPPLEMENTARY PLATE sign 589 may be attached below Sign 437 indicating the distance for which the hazard canbe expected to occur (e.g., “For 5 km”).



3.2.26 SLIPPERY SURFACE SIGN 438

Sign 438 warns that there is a risk of a slippery surface on the roadway.

SLIPPERY SURFACE sign 438 should be located on the right side of the roadway at a distance in advance of asection of road where the risk of the slippery surface exists, as indicated in Table 3-1.

SUPPLEMENTARY PLATE sign 589 may be attached below Sign 438 indicating the distance for which the hazard canbe expected to occur (e.g., “For 5 km”).





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3.2.27 STEEP GRADIENT SIGN 439 and 440

STEEP GRADIENT signs 439 and 440 warn drivers that there is a section of road where the length and angle of graderequire special precautions.

The minimum criteria for providing these signs shall be one of the following:

• A 5% grade extending for 1,000m

• A 6% grade extending for 600m


• An 8% grade extending for 250m


A SUPPLEMENTARY PLATE sign 589 indicating the distance over which the indicated grade extends (e.g., “Next 1km”) may be attached below Signs 439 or 440. If a pronounced variance in grades exists in a given section of roadway,then additional sets of signs shall be used with the appropriate distance at which that grade will be encountered.

Sign 439 should be used for permanent downward slope applications and Sign 440 should be used for permanentupward slope applications. Both should have a white background, a black icon, and a thick red border. The icon shouldindicate the angle of grade in percentage terms and include an arrow indicating the direction of flow which shall alwayspoint to the right hand side of the sign.

Sign 7439 and 7440 should be used for temporary applications and should have a yellow background, a black icon,and a thick red border.

3.2.28 OVERHEAD HIGH VOLTAGE CABLE SIGN 441

OVERHEAD HIGH VOLTAGE CABLE sign 441 indicates that high voltage e lectric cables cross the road.

Sign 441 should be used where there is a risk of high vehicles over the legal 4.2m limit using the road.

A Supplementary Plate 589 should be fixed below the sign to indicate that height of the cables.




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3 4 2 LANE DROP FROM THE RIGHT SIGN 465 and LANE DROP FROM THE 3 4 3 BEGINNING/END OF MEDIAN SIGNS 472 and 473


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3.4.2 LANE DROP FROM THE RIGHT SIGN 465 and LANE DROP FROM THELEFT SIGN 466

LANE DROP signs 465 and 466 warn that a lane drop lies ahead.

Signs 465 and 466 should be considered for use in traffic situations that are either known to have substandardgeometry that cannot be rectified in the short-term or that have, for whatever reason, not been sufficiently improved bythe provision of normal advance warning signs.

Signs 465 and 466 may be provided in advance of the point at which the lane is dropped. An appropriateSUPPLEMENTARY PLATE sign 589 indicating the distance to the lane drop mounted below the sign should beprovided. At the start of the lane drop taper Signs 465 and 466 should be provided without such a supplementary plate.

Signs 465 and 466 should be used for permanent applications and should have a white background and a thin redborder.

Signs 7465 and 7466 should be used for temporary applications and should have a yellow background and a thin blackborder.

The icon should be black and red, with the arrows representing traffic movement in black and the obstructions in red forboth permanent and temporary applications.

3.4.3 BEGINNING/END OF MEDIAN SIGNS 472 and 473

BEGINNING/END OF MEDIAN signs 472 and 473 warn motorists that the roadway ahead has a median starting or

ending and that this may, in the case of sign 472, represent a significant hazard in the roadway going in the onedirection, or that, in the case of sign 473, traffic streams become two way beyond the end of the median island, whichin turn may be a potentially hazardous condition.



The icon should be black and red, with the arrows representing traffic movement in black and the obstructions in red.


3 4 4 ADDITIONAL LANE SIGNS 480 and 481 3 4 5 JOINING LANE SIGNS 482 and 483


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3.4.4 ADDITIONAL LANE SIGNS 480 and 481

ADDITIONAL LANE signs 480 and 481 warn motorists on a section of road that an additional continuous lane will beadded ahead, at the distance indicated below the sign.

The principal value of these signs is to reassure drivers, when in heavy traffic, that overtaking opportunities will occurahead due to the additional lane. Such a sign need only be placed 500m to 1.0km in advance of the start of theadditional lane. The sign type is appropriate for freeways and rural roads.

Signs 480 and 481 should be used for permanent applications and should have a white background, a black icon, anda thin red border.

Signs 7480 and 7481 should be used for temporary applications and should have a yellow background, a black icon,and a thin black border.

3.4.5 JOINING LANE SIGNS 482 and 483

Signs 482 and 483 warn that a lane carrying joining traffic comes into the roadway from the right (or left) and thatmerging and weaving manoeuvres can be expected.

Sign 482 should preferably be positioned so that drivers on the main carriageway and drivers on the entering lane canboth see the sign. If this is not possible both signs 482 and 483 may be used to warn drivers. Because roadconfigurations requiring use of this sign vary widely, there is no recommended minimum or maximum placementdistance. Good engineering judgment should be exercised in locating the signs.


Signs 7482 and 7483 should be used for temporary applications and should have a yellow background, a black icon

and thin black border.


3.4.6 TRUCK LANE USE SIGNS 484 and 485 3.4.7 LANE USE DIRECTIONAL RESTRICTION SIGN 486


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3.4.6 TRUCK LANE USE SIGNS 484 and 485

In Abu Dhabi Emirate, trucks are only allowed to use the right-most lane on any road except when preparing to make aleft turn. Signs 484 and 485 impose this prohibition on the use of lanes by trucks. The lane prohibition also applies tobuses, with two exceptions:

• On roads having four or more lanes, buses are allowed to use the second lane.

• On roads having two or three lanes, buses are allowed to leave the right-most lane to overtake other vehicles, but

must then return to the right lane.



The icon should be black with the prohibitory symbol (circle and diagonal slash) in red on a white background. Thesigns should be spaced at approximately 5.0km intervals.

3.4.7 LANE USE DIRECTIONAL RESTRICTION SIGN 486

LANE USE DIRECTIONAL RESTRICTION sign 486 imposes a mandatory restriction of movement on one or more ofthe basic through lanes of a roadway. In the example shown, it warns that the leftmost of the basic through lanesbecomes, by regulation, an exclusive left turn lane at the intersection. Drivers wishing to continue straight ahead mustleave that lane prior to the intersection; otherwise they will be required to make a left turn.

Sign 486 supplements pavement markings and provides advance notice of lane use control conditions ahead. Thissign is not intended for routine use and its use should be restricted to unusual intersection configurations where one ofthe basic roadway lanes unexpectedly becomes an exclusive turn lane.

A likely usage of this sign will be at a junction on the through leg containing the left turn, when the geometry is suchthat one of the basic roadway lanes becomes an exclusive left turn lane. Its use on other legs of the junction will notordinarily be required.

Sign 486 should be used for permanent applications and should have a white background and a thin red border.

Sign 7486 should be used for temporary applications and should have a yellow background and a thin black border.

The icon should be black with the regulatory symbol in blue with a white arrow.


3.4.8 LANES MERGE SIGNS 490 and 492


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Sign 490 warns of the merging of two lanes. The use of this sign may be appropriate at at-grade junctions toemphasise the need for drivers to undertake merging actions or manoeuvres. As such the sign only shows the twolanes involved in the merging action.

Sign 492 warns of the merging of two lanes on a high-speed free-flow roadway. Such roadways are commonlyfreeways or freeway ramps where there is little or no tolerance for traffic slowdown or back-up from the point of merge.It is therefore recommended that the signs indicate all lanes at the point of merge. The signs should be erected close tothe gore of the merge area on freeways, or on both sides of the roadway at at-grade junctions. Where possible theyshould be visible to drivers in both approaching traffic streams. Advance signs may also be used, particularly onfreeways, and these should include a SUPPLEMENTARY PLATE sign 589.

The number of arrows shown on Sign 492 may be varied to reflect the layout of the road in question.


Signs 7490 and 7492 should be used for temporary applications and should have a yellow background, a black icon,

and a thin black border.



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THIS PAGE IS RESERVED FOR FUTURE FIGURE 4-1: ROUTE NUMBERING SYSTEM


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4.2.5 SIGN BORDERS

All guide signs should be provided with a contrasting border around the perimeter of the sign with the exception that


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Figure 4-4: Principles of Legibility

All guide signs should be provided with a contrasting border around the perimeter of the sign with the exception thatwhen an exclusive exit-only white panel is placed at the bottom of an overhead exit direction sign no border is requiredon the white panel. The border colour should be the same as the colour used for place name lettering on the sign.

Sign borders should have the following dimensional characteristics where “x” is the height of the lowercase letteringused for the sign:

• Width = 0.25x.

• Corner radius = 1.0x (to the outer edge of the border).

An internal dividing border should be used to separate the stacks of a stack type direction sign. This border shouldhave the same width as the outside sign border but should not be provided with radii where it joins the outside border.

4.2.6 INTERNAL SPACING

The sign face layout of all guide signs should adhere to the internal spacing’s listed below and illustrated in a typicalexample in Figure 4-5:

• Side space between border and right or left line of justification = 0.5x

• Minimum lateral space between a route number emblem and an arrow = 1.0x

• Minimum lateral space between text and a Type 5 or Type 8 arrow = 1.0x

• Minimum lateral space between text and a symbol or emblem = 0.5x

• Vertical space between the top border and nearest legend = 0.5x

• Vertical space between the bottom border and nearest legend = 0.5x

• Vertical space between an upper row of legend and a lower row of legend on a horizontal stack type sign = 0.5x

The vertical space between Arabic and English text, or between two rows of Arabic or two rows of English text, is

dictated by the letter and number tiles and no additional internal spacing is required.

The horizontal spacing between letters or numbers is also controlled by the letter and number tiles which include theprovision of a blank tile 0.5x wide for use between consecutive words in a line.



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Figure 4-5: Typical Internal Spacing Elements on Guide Signs

4.2.7 ARROWS

The following basic types of arrows are used on guide signs:

• Chevron arrow.

• Stack-type arrow.

• Overhead arrows.

• Map-type arrow.

The individual types of arrow are detailed below. All arrows have been allocated a “Type” number including left and

right applications. The arrows should appear in white unless noted otherwise. The standard applications of arrowsType 1 to Type 8 are illustrated in Figure 4-6.

Figure 4-6: Arrow Type Applications


4.2.7.1 CHEVRON ARROW TYPES 1 and 2 4.2.7.3 STACK SIGN ARROW TYPES 4 and 5


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Chevron Arrows Types 1 and 2 are used on CHEVRON DIRECTION sign 515 to indicate the action point for a left orright turn at an at-grade junction.

4.2.7.2 STACK SIGN ARROW TYPE 3

Stack Sign Arrow Type 3 should only be used pointing straight upwards. The arrow is used on ADVANCEHORIZONTAL STACK sign 511 and ADVANCE VERTICAL STACK sign 512 to indicate that drivers must travelstraight-on through the junction ahead to reach the destination named in the stack. When used on sign 512 a Type 3arrow should only be used in the top stack.

However, certain site-specific conditions may require a departure from these parameters and guidelines. Suchvariations may only be implemented with the prior approval of the Municipality.

Stack Sign Arrows Types 4 and 5 may be used on ADVANCE HORIZONTAL STACK sign 511, ADVANCE VERTICALSTACK sign 512, and ADVANCE SUPPLEMENTAL sign 514 to indicate the direction in which drivers must turn at the junction ahead in order to reach the destination named in the stack in which the arrow is located.

However, certain site specific conditions may require a departure from these parameters and guidelines. Suchvariations may only be implemented with the prior approval of the Municipality.

4.2.7.4 STACK SIGN ARROW TYPE 6

Stack Sign Arrow Type 6 should only be used pointing to the left. The arrow is used on ADVANCE SUPPLEMENTALsign 514 to indicate that drivers must execute a U-turn at the next opportunity in order to reach the destination namedin the stack. In such an instance drivers are likely to see a further sign 514 shortly after the U-turn indicating a right turninto a side road.


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Figure 4-7: Approved Supplemental Destination Symbols

4.3 ROUTE MARKER SIGNS4.3.1 USE OF ROUTE MARKER

A route marker sign is a confirmatory guide sign that provides reassurance to motorists that they are on their intended

route (or conversely to advise them that they have taken a wrong turn and are not on the route that they planned to beon).

Under the Abu Dhabi guide signing system the ongoing routes at all intersections will be signed with the route numberas part of the primary advance guide signing. This is true for at-grade junctions (signalised intersections androundabouts) and for grade-separated interchanges. Thus, every time a motorist travelling on a route approaches a junction, he will receive confirmation of the route he is on.

As such, route marker signs are not required to be used after every junction, but only when the distance between junctions is considerable. On rural roads where junctions with numbered routes are infrequent, a route marker shouldbe erected if the distance between primary guide signs containing the emblem of the ongoing route are spaced morethan 2.0km apart. In such a case a route marker should be erected approximately 2.0km after the junction, and every10km thereafter, up to a point not less than 2.0km before the next primary guide sign that contains the emblem of theongoing route.

Figure 4-8: Use of Route Marker Signs

On urban roadways where there is more turning traffic at major junctions as well as more entering traffic from minorroads between major junctions, a more frequent spacing of route markers is desirable. On urban roads a route markershould be erected if the distance between primary guide signs containing the emblem of the through route are locatedmore than 2.0km apart. In such a case a route marker should be erected approximately 500m after the junction, andevery 2.0km thereafter, up to a point not less than 1.0km from the next primary guide sign that contains the emblem ofthe through route.


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4.6 GRADE-SEPARATED JUNCTION GUIDE SIGNS4.6.1 TYPES OF GRADE-SEPARATED JUNCTION GUIDE SIGNS

The following types of guide signs may be specified for use on the free-flowing roadway of a grade-separated junctionwhether this is on an Emirate Route or an Abu Dhabi Route:

4.6.2 ADVANCE EXIT DIRECTION SIGN 551


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et e t s s o a ate oute o a bu ab oute

• ADVANCE EXIT DIRECTION sign.

• EXIT DIRECTION sign.

• ONGOING DIRECTION sign.

• GORE EXIT sign.

• SUPPLEMENTAL EXIT sign.

A grade-separated junction may occur between two routes which have one of the following characteristics:

• Both routes have full access control and all elements of the junction are free flowing and grade separated. Such a

junction between two such freeways does not give access to the at-grade street network and is termed a

“systems” interchange.

• One route is a freeway with full access control and the other is essentially an at-grade road (although it may have

occasional grade-separated junctions) with only limited access control. Such a junction is termed an “access”

interchange allowing connection between the at-grade street network and a freeway, and vice versa.

• Both routes are essentially at-grade routes with limited access control but have selected grade-separated

junctions to improve junction capacity.

The at-grade portion of any of the latter two junction types, including any off-and-on ramps from and to the freeway,should be signed using conventional at-grade direction signs. However, site-specific roadway geometry may, at times,require the at grade roadway to be signed using the following sign types to indicate lane assignment. Such variationscan only be implemented with the prior approval of the Municipality.

All free-flowing roadways approaching a grade-separated interchange up to and including the exit ramp gore area

should be provided with at least one of each of the above sign types with the exception of the SUPPLEMENTAL EXITsign which is optional.

Figure 4-9: Advance Exit Direction Sign 551

4.6.2.1 FUNCTION

• To provide advance indication of destinations served by an exit ramp at the interchange or grade-separated

intersection ahead.

• To indicate the lane or lanes that should be followed to reach the exit ramp.


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5.2.19 LANE END ARROW MARKING 656 5.2.20 CHEVRON MARKING 657


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LANE END ARROW marking 656 is used to warn that a lane on a multilane roadway is ending ahead and that theyshould move out of that lane in the direction indicated at the earliest safe opportunity to do so.

Marking 656 should consist of a white straight arrow oriented at a 20 degree rotation to the longitudinal axis of the lane.The arrow should be centred in the lane such that its extremities are equidistant from the lane edge on each side.

Marking 656 should be used when a long-running lane on a multilane roadway ends or at the end of a parallel-lane-type entrance ramp. It is not intended for use on a tapered entrance ramp.

Marking 656 should be repeated in a series of two or preferably three markings. The last of the arrows in the seriesshould be positioned at the end of the lane just prior to the point where the lane begins to decrease in width. Thespacing between each arrow should be as in Table 5-5.

Table 5-5

Lane Arrows Spacing

Posted Speed Spacing

40kph 24m

60kph 32m

80kph 40m

100kph 48m

CHEVRON marking 657 should be used to provide warning to motorists of a divergence of traffic lanes travelling in thesame direction.

Marking 657 should consist of diagonal white lines arranged in a chevron pattern as depicted above. The CHEVRONshould point towards the oncoming traffic such that the sloping legs of the CHEVRON are seen to split the divergingstreams of traffic, “pushing” them away from one another. Marking 657 should be repeated within a gore areabeginning at the theoretical nose (painted nose) of an exit or divergence point and cease at the physical nose.CHEVRON marking 657 should not be used within the gore area of converging streams of traffic.

Marking 657 should only be used in areas not intended for travel or parking and should always be separated from atravel area by an EDGE LINE marking 613 or a CHANNELIZING LINE marking 612.

5.2.20.1 DETAIL OF A GORE AREA


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5.7 TEXT PAVEMENT MARKINGS5.7.1 TEXT SYMBOL MARKING 695

TEXT SYMBOL marking 695 may be used to provide specific localised amplification of existing regulatory, warning, orguide road signs or pavement markings.

Marking 695 should be made using the Municipality’s standard Arabic (Naskh) and English (Transport) fonts.

English text messages should use only upper case letters and, if appropriate, numbers. Stencils for text messagesshould be prepared based on 400mm “x” height letters on their tile backgrounds which are then dist

121520141347586649662_adm irid - traffic control devices manual_version 2.0 (november 2014)

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