traffic calming devices workshop

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Traffic Calming Devices Traffic Calming Devices WorkshopWorkshop

Prepared byCity Engineering Department

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Project GoalsProject Goals

Purpose of workshop Types of TDCs Available Considerations Recommendations and Analysis Informational Items NE 8th & 10th Avenues Considerations Discussion Review existing City policy

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Purpose of WorkshopPurpose of Workshop

Discuss the different types of TDCs available and their applicability for use throughout the City

Solicit input of preferences from the community and the Commission

Discuss and comments

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Types of TDCs AvailableTypes of TDCs Available

Passive Controls–Warning signs– Speed limit signs– Caution signs– Speed radar signs– Radar boards– Police speed enforcement

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Types of TDCs AvailableTypes of TDCs Available Active Controls - Vertical or horizontal deflections

– Speed bumps– Speed humps– Speed pillows– Speed tables– Raised intersections– Intersection islands– Roundabouts– Splitter islands– Narrowed lanes– Lane offsets

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ConsiderationsConsiderations Impact to neighborhoods Thru traffic Emergency vehicles response times Fire rescue response times Garbage truck pickup Delivery vehicles Pedestrian safety Aesthetics Cost of implementation and maintenance Transfer of problems to other areas Noise impacts due to stopping and accelerating

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Recommendation and AnalysisRecommendation and Analysis Discussion of the

following- Passive Controls- Active Controls - Vertical or horizontal deflections– Speed bumps– Speed humps– Speed pillows– Speed tables– Raised intersections

– Intersection islands– Roundabouts– Splitter islands– Narrowed lanes– Lane offsets

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Passive ControlsPassive Controls

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Speed bumps & humpsSpeed bumps & humps

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Speed pillowsSpeed pillows

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Speed tablesSpeed tables

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Raised intersectionsRaised intersections

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Intersection islandsIntersection islands

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RoundaboutsRoundabouts

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Splitter islandsSplitter islands

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Narrowed lanesNarrowed lanes

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Lane offsetsLane offsets

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Informational ItemsInformational ItemsPresent TDCs being installed

- Speed Tables per BCTD StandardCoordination with Fire and Police

- Emergency response impactsMajority of installs based on

residents requestTDCs have a positive impact on

crime prevention

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NE 8NE 8thth and NE 10 and NE 10thth Avenues Avenues ConsiderationsConsiderationsOptions to conversion from one way

to two way traffic- Install speed tables on each avenue to

slow traffic- Eliminate the NB thru movement from the

10th Ave. signal to reduce cut thru traffic- Eliminate the SB and NB left turns at 8th

Ave. leaving only the WB left for Sage plaza or eliminate the signal all together

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DiscussionDiscussion

Discussion of presentation and input from residents and Commission

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Review Existing City PolicyReview Existing City Policy

Review of existing policy for potential changes