new jersey department of transportation guidance for
TRANSCRIPT
Quality Management Services P. 1 of 3 May 22, 2014
New Jersey Department of Transportation
Guidance for Americans with Disabilities Act (ADA)
Project Design
General Generally, curb ramps are needed wherever a sidewalk or other pedestrian walkway crosses a curb. Curb ramps must be located to ensure a person with a mobility disability can travel from a sidewalk on one side of the street, over or through any curbs or traffic islands, to the sidewalk on the other side of the street. However, the ADA does not require installation of curb ramps in the absence of a pedestrian walkway with a prepared surface for pedestrian use. Nor are curb ramps required in the absence of a curb, elevation, or other barrier between the street and the walkway. There is an exception to this requirement outlined in Item #4 below. Specific Guidance 1) Identify the original project type to determine the extent of ADA improvements
required. 2) For project types identified as Limited Scope, if sidewalks cross a curb at a street or
driveway, reconstruction of the street or driveway to improve slopes is not required. For project types identified as Full Scope, evaluation of sidewalk cross slopes is required at 50’ intervals and at the midpoint of all driveways.
3) If crosswalks encounter dividers or islands, walkway openings or curb ramps should
be provided or the island should be moved back so that the nose is out of the crosswalk.
4) Curb ramps with a landing area shall allow mobility device users to access existing
or proposed pedestrian pushbuttons. Where pedestrian pushbuttons have been provided at intersections with no sidewalk, curb ramps with landing areas shall be provided at both ends of the crosswalk associated with the pedestrian pushbuttons.
5) Sidewalk crossings of residential driveways and most commercial driveways should not generally be provided with detectable warning surfaces, since the pedestrian right-of-way continues across most driveway aprons and the overuse of detectable warning surfaces diminishes message clarity. However, where commercial driveways are provided with traffic control devices or otherwise are permitted to
Quality Management Services P. 2 of 3 May 22, 2014
operate like public streets, detectable warnings should be provided at the junction between the pedestrian route and the street.
6) Crosswalks can be marked or unmarked, but where crosswalks are marked, curb
ramps (exclusive of flares) should be wholly contained within marked pedestrian crosswalks to enable ramp use to be incorporated as part of the established pedestrian control at the intersection.
7) In alterations to existing facilities where full compliance with the Americans with
Disabilities Act Accessibility Guidelines (ADAAG) is technically infeasible, the alteration shall comply with these standards to the extent practicable. Designers shall document the basis for their determination using Form TIF-1 (ADA Technically Infeasibility Form). This form shall be submitted for each non-compliant ramp.
8) When project limits are established, continuity of pedestrian travel should be a
consideration relating to the ends of the project including addressing arrival and departure curb ramps at pedestrian street crossings. For example: Where resurfacing only the northbound side of a divided highway, and the intersections(s) have sidewalk on both bounds, then curb ramps will be addressed on the entire intersection.
9) Detectable warning surfaces shall follow the direction of travel on the ramp, which is
not necessarily the expected direction of pedestrian travel across the roadway. 10) The preferred treatment for existing manholes, junction boxes, and valve boxes is to
locate them outside of the limits of the curb ramp. However, as an alternate treatment, for Limited Scope projects, these items may remain in the curb ramp area and be reset to the slope of the curb ramp. If they are within the area of the detectable warning surface, provide more detectable warning surface to compensate for the loss of area.
(Y/N or N/A) Comments
1 Does intersection curb ramp layout comply with diagram in RDM section 5.7.4 “Curb Ramps at Intersections”? ‐
2 Is turning space ‐ 4’ x4’ min.? ‐
3 Is turning space cross slope ‐ 2% max.? ‐
4 Is ramp width – 4’ minimum? ‐
5 Is ramp running slope – 8.33% max.? ‐
6 Are concrete flares slopes – 10% max.? ‐
7 Is clear space 4’ x 4’ min.? ‐
8 Is clear space contained entirely within crosswalk? ‐
9 Is detectable warning surface (DWS) present? ‐
10 Is DWS oriented correctly? ‐
11 Is DWS in contrast “light on dark” or “dark on light”? ‐
12 Is clear width of sidewalk 36’ min.? ‐
13 Is crosswalk striped? ‐
14 Is curb ramp located entirely within the crosswalk where a painted crosswalk exists (exclusive of flares)? ‐
15 Is curb ramp or turning space clear of any utilities? ‐
16 Are curb ramps with a turning space provided where pedestrian pushbuttons are present? ‐
17 Is a sidewalk provided to access pedestrian pushbutton? ‐
18 Is distance to pushbuttons within 6ft maximum of the curbline as per MUTCD standards? ‐
19 Is pushbutton located 3.5’ maximum above sidewalk? ‐
20 Is pushbutton within 10” from edge of sidewalk? ‐
21 Is pushbutton type ADA compliant? ‐
22 Are walk/don’t walk” indicators present? ‐
23 Is the signal pole foundation exposed no more than the maximum 1” on sidewalk, 2” on grass? ‐
24 Is bottom edge of curb ramp flush with road? ‐
25 Is a walkway opening or curb ramps needed in the median? ‐
ADA Compliance Curb Ramp Design Checklist
This document is for assistance in answering question 1 on ADA Compliance Curb Ramp Checklist.
Curb Ramps at Intersections
The clear width of a curb ramp should be a minimum of 4 feet, excluding flares.
The following criteria shall apply to providing curb ramps at intersections:
1. Where all the corners of an intersection have existing or proposed sidewalk, curb ramps shall be provided at each corner.
2. Where all the corners of an intersection do not have existing or proposed sidewalk, the following provisions shall apply:
a. Where sidewalk exists or is proposed at only one corner, A only, B only, C only or D only; no curb ramp is required. If the curb at the corner with sidewalk is to be constructed or reconstructed, it is optional to provide depressed curb for future curb ramps for compatibility with other corners.
b. Where there is existing or proposed sidewalk at two adjacent corners only, such as A and B, curb ramps shall be constructed at corners A and B only.
c. Where there is existing or proposed sidewalk at two diagonally opposite corners only, such as A and C, curb ramps shall be constructed at corners A and C together with a curb ramp at one of the other corners (B or D).
d. Where sidewalk exists or is proposed at three corners, curb ramps shall be constructed at each corner where existing sidewalk is to remain or where new sidewalk is proposed.
Where a corner at an intersection is without existing or proposed sidewalk, but with curb to be constructed or replaced or with existing curb to remain as is; it is optional to provide depressed curb for future curb ramps.
C
A B
D
ADA CURB RAMPS
REQUIREMENT CONDITIONS
NO CURB RAMPS REQUIRED
CONDITION A
NO CURB RAMPS REQUIRED
CONDITION B
CONDITION C
SIDEWALK
NO CURB
BERM SECTION
BUILD CURB RAMP
NO CURB
NO SIDEWALK
CURB
NO SIDEWALK
SWSW
NOTE:
CURB RAMPS WITH A LANDING AREA SHALL ALLOW MOBILITY DEVICE USERS TO ACCESS EXISTING
OR PROPOSED PEDESTRIAN PUSHBUTTONS. WHERE PEDESTRIAN PUSHBUTTONS HAVE BEEN PROVIDED
AT INTERSECTIONS WITH NO SIDEWALK, CURB RAMPS WITH LANDING AREAS SHALL BE
PROVIDED AT BOTH ENDS OF THE CROSSING ASSOCIATED WITH THE PEDESTRIAN PUSHBUTTONS.
BDC13MR-01
FIGURE: 5-QCLEAR SPACE & TURNING SPACE
EXAMPLES
SW
TYPE 1 to 4
12:1 MAXPARALLEL VEHICLETRAVEL LANE
CS = CLEAR SPACETS = TURNING SPACE
SW = SIDEWALK
WITH SHOULDER WITH SHOULDER
TYPE 5*
WITHOUT SHOULDER
TS
CS
TS
TS
TS
TS
TS
SW
SW
SW
SWSW
SW
SW
SW
SW
SW
CS
CS
CS
CS
CS
CSTS+
CS
TS+
CS
STATE HWY
STATE HWY
TYPE 6
WITH SHOULDER
TYPE 1 to 4WITHOUT SHOULDER
SMALL RADIUS
TYPE 1 to 4WITHOUT SHOULDER
LARGE RADIUS
* NOTE: A TURNING SPACE IS NOT REQUIRED SINCE A TURNING
MANEUVER ONTO THE RAMP FROM A PERPEDICULAR
PEDESTRIAN ACCESS ROUTE DOES NOT EXIST.
TYPE 7
DWS LOCATION
DWS DWS
TYPE 1 to 4 & 7 TYPE 5 & 6
PUSHBUTTON LOCATION
6 FT
MAX
5 FT
MAX
6 FT
MAX
DOWNWARD SLOPE
RECOMENDED AREA FOR
PUSHBUTTON LOCATION
PUSHBUTTON EXTENDER
SW
PUSHBUTTON HEIGHT
OBSTRUCTION
CONSULT WITH THE BUREAU OF
TRAFFIC ENGINEERING FOR USE
OF EXTENDERS
DISTANCE FROM SIDEWALK
TO PUSHBUTTON
3.5 FT
MAX
ADA DWS AND PUSHBUTTON
LOCATION
1.5 FT MIN
1.5 FT MIN
Detectable Warning Surface(DWS) is in the direction of travel of the curb ramp
MUTCD MUTCD
ADDAG
10"
MAX.
NEW JERSEY DEPARTMENT OF TRANSPORTATION
CONSTRUCTION DETAILS
X
X
1
1
L 1
GU
TTER L
INE
2%4' M
IN.
CURB RAMP
CURB RAMP TYPE 1
MA
X.
CO
NC
RETE
SIDEW
ALK
W W
2%4' M
IN.
CURB RAMP TYPE 2
7'
(GRASS BUFFER STRIP)
MA
X.
GU
TTER L
INE
CO
NC
RETE
SIDEW
ALK
CURB RAMP TYPE 3
L
L 1
2
X
X
X
X
1
1
2
2
Y
CO
NC
RETE
SIDEW
ALK
GU
TTER L
INE
7'
W
Y
CO
NC
RETE
SIDEW
ALK
CURB
RAM
P
GU
TTER L
INE
CURB RAMP TYPE 7X 1
4' MIN
.
X 1
L 1
C
(SEE NOTE 7)
C
CONCRETE HEADER WHERE
SHOWN ON PLANS
1.
2.
3.
4.
5.
6.
7.
CURB AND HEADER WITHIN AREA ENCLOSED BY HEAVY LINES TO BE PAID FOR AS VERTICAL CURB OR
SLOPING CURB OF THE APPROPRIATE ADJACENT SIZE AND KIND.
N.T.S.
VARIABLE
2% MAX.
CURB RAMP
SECTION A-A
NOTE:
2% MAX.
SECTION C-C
CONCRETE HEADER OR
CURB TO BE FLUSH WITH
ROADWAY PAVEMENT
2.5 3
4
5
6
7
8
9
3.0
2.5
3.3
4.2
5.0
5.8
6.7
7.5
9
10.6
2.5 0.5 5
7
9
11
13
15
17
1.5
2.5
3.5
4.5
5.5
6.5
2.5
12.4
14.0
15.6
17.4
19.0
3
4
5
6
7
8
9
* * * * *
3.3
4.2
5.0
5.8
6.7
7.5
10.6
12.4
14.0
15.6
17.4
19.0
3.0
3.0
3.0
3.0
3.0
3.0
1
2
3
4
5
6
6
8
10
12
14
16
3.5
4
5
6
7
8
9
4.0
4
5
6
7
8
9
3.3
4.2
5.0
5.8
6.7
7.5
4.2
5.0
5.8
6.7
7.5
10.6
12.4
14.0
15.6
17.4
19.0
12.4
14.0
15.6
17.4
19.0
3.5
3.5
3.5
3.5
3.5
3.5
4.0
4.0
4.0
4.0
4.0
0.5 5
1.5 7
2.5
3.5
4.5
5.5
9
11
13
15
1
2
3
4
5
6
8
10
12
14
CURB RAMP TYPE 3
XFEET
1 LFEET
1WFEET
H Y XFEET
2 LFEET
2INCHES INCHES
2.5
2.5
2.5
2.5
2.5
3 * * * * *
3 * * * * *
* * * * *
2.5 3
4
5
6
7
8
9
3.0 3
4
5
6
7
8
9
3.5
4
5
6
7
8
9
4.0
4
5
6
7
8
9
WFEET
HINCHES
3
3
2.5 0.5 5
7
9
11
13
15
17
1.5
2.5
3.5
4.5
5.5
6.5
2.5
** ** **
3.0
3.0
3.0
3.0
3.0
3.0
1
2
3
4
5
6
6
8
10
12
14
16
3.5
3.5
3.5
3.5
3.5
3.5
4.0
4.0
4.0
4.0
4.0
0.5 5
1.5 7
2.5
3.5
4.5
5.5
9
11
13
15
1
2
3
4
5
6
8
10
12
14
Y XFEET
2 LFEET
2INCHES
2.5
2.5
2.5
2.5
2.5
** ** **
** ** **
** ** **
XFEET
3
4
5
6
7
8
9
3
4
5
6
7
8
9
1 L WFEET
1FEET
2.5 9.0
3.3
4.2
5.0
5.8
6.7
7.5
10.6
12.4
14.0
15.6
17.4
19.0
CURB RAMP TYPE 1
3
4
5
6
7
8
9
WFEET
4"
16
" O
R
18"
ROADWAY
PROPOSED CURB
WIDTH THE SAME
AS APPROACH CURB
•" PREFORMED EXPANSION JOINT FILLER
HOT POURED RUBBER-ASPHALT JOINT SEALER
H=C
UR
B H
EIGH
T
H=C
UR
B H
EIGH
T
H=C
UR
B H
EIGH
T
CURB RAMPS
DROPPED CURB AND CRADLE
10H:1V
MAX.
MA
X.
12H:1V
12H:1VM
AX
.
10H:1V
MAX.
10H:1
V
MA
X.
APPRO
ACH
SDW
K. T
RAN
S.
APPR
OA
CH
SDW
K. T
RA
NS.
APPR
OA
CH
SDW
K. T
RA
NS.
APPR
OA
CH
SDW
K. T
RA
NS.
APPR
OA
CH
SDW
K. T
RA
NS.
APPR
OA
CH
SDW
K. T
RA
NS.
1'-6"
1'-6" 1'-6
"
1'-6"
H=CURB HEIGHT
REGRADE AT 6H:1V
12H:1V MAX.
HINCHES
3
4
5
6
7
8
9
HINCHES
CURB RAMP
TYPE 2, 5 OR 6
CURB RAMP TYPE 4
CURB RAMP TYPE 4
CURB RAMP
CURB RAMP OPENING TO BE FLUSH WITH ROADWAY
PAVEMENT (CURB RAMP TYPES 5 & 6).
12H:1V
MAX.
12H:1
V
MA
X.
2% M
AX
.4' M
IN.
W
4'
2L
2X
2X
12H:1
V
MA
X.
2% M
AX
.
12H:1V
MAX.
12H:1V
MAX.
12H:1
V
MA
X.
2%M
AX.
APPR
OA
CH
SDW
K. T
RAN
S.
GU
TTER L
INE
H=C
UR
B H
EIGH
T
APPR
OA
CH
SDW
K. T
RA
NS.
W
4'
CU
RB
RA
MP
SIDEWALK AND CURB RAMP WITHIN AREA ENCLOSED BY HEAVY LINES TO BE PAID FOR AS CONCRETE
SIDEWALK OF THE APPROPRIATE ADJACENT THICKNESS.
T
P
2
V
I
L
L
2
1
-
M
A
Y
-
2
0
1
4
1
2
:
5
5
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0
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0
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0
:
1
.
0
0
0
0
0
ID=
date=
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=
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10H:1
V
MA
X.
CONCRETE CURB RAMP, 4" THICK
WIDTH
H=CURB HEIGHT1'-6"SDWK.
1'-6" 1'-6"SDWK.
WIDTH
VARIABLE
10H:1V MAX.
CURB (DROPPED CURB) GUTTERLINE TO BE FLUSH WITH ROADWAY PAVEMENT A MINIMUM OF 4 FEET
AT ALL CURB RAMPS.
* TYPE 3 RAMP IS NOT APPLICABLE, USE TYPE 1. ** TYPE 4 RAMP IS NOT APPLICABLE, USE TYPE 2. CD-606-1.1
8.
9.
10.
52
148
SECTION THROUGH CURB RAMPS 1 THROUGH 4
VARIABLE
CURB RAMP
12H:1V MAX.2% MAX.
SECTION THROUGH CURB RAMPS 5 AND 6
H=C
UR
B H
EIGH
T
VARIABLE
LANDING
SECTION B-B
CURB RAMP TABLES
WARNING:
3
4
5
6
7
8
9
10
XFEET
1 LFEET
1WFEET
H
CURB RAMP TYPE 7
3
4
5
6
7
8
9
12
14
16
18
20
22
6" MIN.
DIMENSIONS SHOWN IN CURB RAMP TABLES ARE BASED ON A ZERO
PERCENT GUTTER PROFILE. THEREFORE, DIMENSIONS SHOWN MAY INCREASE
OR DECREASE BASED ON DIRECTION AND PERCENT OF GUTTER PROFILE.
SEE NOTE 4
W
A
A
B
B
CURB RAMP TYPE 5
4' MIN. 4' MIN.
12H:1V MAX.
12H:1V MAX.
1'-
6"
W
CURB
RAMPS
SEE NOTE 4
WW
A
A
B
B
4' MIN. 4' MIN.
4' M
IN.
CURB RAMP TYPE 6
CURB
RAMPS
12H:1V MAX.
12H:1V MAX.
10H
:1V
MA
X.
W
(LIMITED ROW)
DIMENSIONS SHOWN IN TABLES ARE FOR 3 INCH TO 9 INCH CURB HEIGHTS. WHERE THE CURB HEIGHTS
ARE OTHER THAN WHAT IS PROVIDED IN THE TABLES, THE DIMENSIONS OF THE RAMPS WILL HAVE TO BE
CALCULATED BASED ON CROSS SLOPES SHOWN.
2
INCHES FOR CURB RAMP TYPES 5 AND 6, IF A GRASS BUFFER DOES NOT EXIST, SLOPE CURB TO EQUAL SLOPE
OF ADJACENT CURB RAMP.
12H
:1V
MA
X.
CROSSWALKS AND STOP LINES MAY BE MARKED OR UNMARKED. SEE PLANS.
H=C
UR
B H
EIG
HT
GU
TT
ER
LIN
E1'-6
"
7'
1'-6"
W
12H:1
V
MA
X.
12H:1V
M
AX
.
W
4' MIN
CO
NC
RETE
SIDEW
ALK
CD-606-1
BD
C0
7D
-01
-OR
IGIN
AL
SH
EE
T
BD
C12D
-05-M
OD
IF
IC
AT
IO
N T
O C
UR
B R
AM
P D
ET
AIL
4' MIN
4' MIN
4'MIN 4' M
IN
2% MAX 2% MAX
2% M
AX
4' MIN
2% MAX
2% MAX
4' MIN
4' MIN
TURNING SPACE
TUR
NIN
G SPA
CE
TUR
NIN
G SPA
CE
TURNING SPACE
TURNING SPACE
2% M
AX
CURB RAMP
TURNING
SPACETURNING SPACE
4' MINIMUM SIDEWALK
TURNING SPACE WIDTH
CURB RAMP
TURNING
SPACE
4 MIN.
MIN 5'
WITH
HEADER
CO
NC
RETE
SIDEW
ALK
GU
TT
ER
LIN
E
H=C
UR
B H
EIG
HT
2% MAX
CURB RAMP
1'-6"
7'4' M
IN
1'-6"
2%
MA
X
4' M
IN
W12H
:1V
MA
X.
10H
:1V
MA
X.
NOTES:
CONCRETE CRADLE 4" WIDE (MONOLITHIC
WITH CURB)
(TURNING SPACE REQUIRED) (GRASS BUFFER STRIP WITH
TURNING SPACE REQUIRED)
KEEP TURNING SPACE, APPROACH SIDEWALK TRANSITIONS, AND CURB RAMP CLEAR OF OBSTRUCTIONS
THAT PROTRUDE ABOVE THE SIDEWALK.
THE 12H:1V MAX SLOPE IS THE RUNNING SLOPE FOR CURB RAMPS, BUT ONLY THE 12H:1V SLOPE MEASURED
AS X IS THE RUNNING SLOPE FOR TYPE 3 AND TYPE 4 CURB RAMPS. ENSURE THE RUNNING SLOPE OF CURB RAMPS
DOES NOT REQUIRE ITS LENGTH TO EXCEED 15 FEET. THE RUNNING SLOPE MAY EXCEED THE 12H:1V MAX
SLOPE SO AS NOT TO EXCEED THE 15 FEET MAXIMUM LENGTH.
WHERE THE DISTANCE FROM THE GUTTER LINE TO THE OUTSIDE EDGE OF SIDEWALK IS 6 FEET OR LESS,
USE CURB RAMP TYPE 7, INSTEAD OF CURB RAMP TYPE 1 THROUGH 4.
CONCRETE SIDEWALK(PUBLIC SIDEWALK CURB RAMP)
TURNING SPACE
PENDING 5-20-14
DIMENSIONS SHOWN IN TABLES ARE FOR RELATIVELY FLAT SIDEWALK AREAS. CARE SHOULD BE TAKEN
WHEN DETERMINING CURB RAMP SIZE BASED ON CURB HEIGHT (H) WHERE ELEVATION OF CURB AND
SIDEWALK VARY DRASTICALLY IN AREA OF PROPOSED CURB RAMP.
ALIGNED OFFSETALIGNED OFFSET
NEW JERSEY DEPARTMENT OF TRANSPORTATION
CONSTRUCTION DETAILS
1.
CROSSWALKS AND STOP LINES MAY BE MARKED OR UNMARKED, SEE PLANS.
N.T.S.
T
P
2
V
i
l
l
2
0
-
M
A
Y
-
2
0
1
4
1
5
:
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ID=
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DETECTABLE WARNING SURFACE
2.
3.
148
ALTERNATE TREATMENT PREFERRED TREATMENT
A
B C
LO
CA
TE
RA
MP
CURB RAMP
CURB RAMP
CURB RAMP
(T
YP
.)
TH
IS
SID
E O
F
LIN
E C
B
LOCATE RAMP
THIS SIDE OF
LINE AB
SD
WK
.
LOCATION OF CURB RAMP TYPES 1, 2, 3, 4 & 7
FOR CROSSING PARALLEL AND PERPENDICULAR
TO HIGHWAY
4.
5.
FOR MEDIUM AND LARGE ISLAND WIDTH, SEE CURB RAMP TYPE 1 ON CD-606-1.
CROSSWALKS
(SEE NOTE 2)
6.
NOTE:
WHERE PRACTICAL, END LEFT TURN ISLAND
OR DIVISIONAL ISLAND BEFORE CROSSWALK
TO ELIMINATE CUT-THROUGH
OPENING1" TYP.
TOP OF CURB
NOTE:
PAVEMENT
SURFACE
MARKED
CROSSING 2' MIN. RADIUS
AT EACH CORNER
6' M
IN.
2' M
IN.
5' MIN.
2' MIN. RADIUS TYP.
4' M
IN.
TU
RN
ING
4' MIN.
4' MIN.
4' M
IN.
PEDESTRIAN REFUGE ISLAND
(SEE NOTE 3)
NARROW ISLAND WIDTH MEDIUM ISLAND WIDTH LARGE ISLAND WIDTH
(SEE NOTE 4) (SEE NOTE 4)
6' MIN.
REFUGE AREA
5'MIN.
5'MIN. WIDE OPENING TO BE FLUSH
WITH ROADWAY PAVEMENT
PLACEMENT OF DETECTABLE WARNING SURFACE
FOR CURB RAMP TYPE 5 AND 6
BOTH ENDS OF THE BOTTOM GRADE
BREAK ARE LESS THAN 5'
FROM BACK OF CURB.
ONE OR BOTH ENDS OF THE BOTTOM
GRADE BREAKS ARE GREATER THAN 5'
FROM BACK OF CURB.
SECTION D-D
DD
CURB RAMP
WIDTH
24
" M
IN.
CU
RB
RA
MP
DE
LIN
EA
TIO
N
CURB
0.65" MIN.
BASE TO BASE
T.D. SPACING
1.6" MIN. TO 2.4" MAX.
CENTER TO CENTER
T.D. SPACINGSIDEWALK
PLAN VIEW
ELEVATION
0.45" MIN. TO 0.90" MAX.
TOP DIAMETER
0.90" MIN. TO 1.4" MAX.
BASE DIAMETER
TRUNCATED
DOME (T.D.)
0.20"
SIDEWALK
COLOR SURFACE
(SHADED AREA)
FOR NARROW ISLAND WIDTH, SEE PEDESTRIAN REFUGE ISLAND WALKWAY OPENING AT INTERSECTIONS DETAIL.
CONSTRUCT CURB RAMP TYPES 1, 2, 3, 4 & 7 PERPENDICULAR TO CURBLINE, AS SHOWN.
SP
AC
E
TU
RN
ING
SP
AC
E
TURNING SPACE
WIDTH OF CURB RAMP
LANDING OR WALKWAY
PATH OR WALKWAY
RAIL
6' M
IN.
15
' M
AX
.
6' M
IN.
15
' M
AX
.
DETECTABLE WARNING
SURFACE (DWS)
SEE NOTE 6
IF A CURB RAMP IS REQUIRED, THE LOCATION OF THE DETECTABLE WARNING SURFACE MUST BE
AT THE BOTTOM OF THE RAMP AND WITHIN THE REQUIRED DISTANCE FROM THE RAIL.
PEDESTRIAN RAILROAD CROSSING PEDESTRIAN REFUGE ISLAND WALKWAY
OPENING AT INTERSECTIONS
4' MIN.
DIRECTION OF TRAVEL ON RAMP
0" MIN., 6" DESIRABLE, MEASURED FROM
BACK OF CURB EDGE RADIUS
PENDING 5-20-14
(SEE NOTE 5) (SEE NOTE 5)
NOTES:
KEEP TURNING SPACE, APPROACH SIDEWALK TRANSITIONS, AND CURB RAMP CLEAR OF OBSTRUCTIONS
THAT PROTRUDE ABOVE THE SIDEWALK.
DETECTABLE WARNING SURFACE
BD
C12D
-05-O
RIG
INA
L S
HE
ET
CURB RAMP TYPE 1 (TYP.)
53
CD-606-2
CD-606-2.1
(PLACE 0" MIN., 6" DES.
BEHIND BACK OF CURB)