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Delivering a first-rate transportation system for Seattle Scott Kubly, Director







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Neighborhood Traffic Operations Home
Frequently Asked Questions
Traffic Circle Program
Typical Traffic Circle Design
Traffic Calming Program
Neighborhood Speed Monitoring
Community Oriented Traffic Calming
Physical Traffic Calming Devices
Arterial Traffic Calming Program
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Traffic Calming Program: Community Oriented Traffic Calming

The following measures focus on bringing the community together to raise awareness and educate drivers that they are in a neighborhood where there is a strong desire for them to drive responsibly.

Traffic Calming Brochure - Distributed to residents along a block, this is often the first notice that your neighbors receive that there is a speeding and/or safety concern on their street.  The brochure will create an opportunity to share your concerns with your neighbors and educate them on traffic calming.  The brochure also raises awareness for those residents that may speed on your street.

Letter to Speeders – If you participate in the traffic calming program, you and your neighbors will be asked to monitor speeds with the radar speed gun for 2 hours.  SDOT can send a letter to those drivers who were traveling at excessive speeds.  This letter can be surprisingly effective, especially if younger drivers are borrowing their parent’s car!

Neighborhood speed watch signNeighborhood Speed Watch Sign – Once a neighborhood enrolls in the traffic calming program, SDOT will install a Speed Watch Area sign at both ends of the block.  The signs will stay in place for two months, while the community participates in the program.  The Speed Watch Area signs are meant to increase driver awareness of the neighborhood’s concerns with speeding traffic.

Speed watch trailerSpeed Watch Trailer – The speed watch trailer detects and displays the speed of oncoming vehicles.  Placing the speed watch trailer on your street is another reminder to drivers to drive responsibly.

Enforcement – Getting a ticket is a strong deterrent to speeding.  SDOT works closely with the Seattle Police Department (SPD) on periodic enforcement where speeds are excessive.

Yard signYard Signs - Yard signs are intended to inform drivers that they are travelling on a neighborhood street and remind drivers to slow down.  The sign features eye catching colors and the primary message “Slow Down”.  You may choose from three secondary messages: “Kids live here, keep ‘em safe”, “Drive like you live here”, or “Respect our streets, respect our neighborhoods”.

Street parkingParking Management – Parking on both sides of the street can be an effective traffic calming tool. On wide open streets, some drivers can feel “encouraged” to travel at high speeds.  Narrower streets force them to slow down.  On this street, if a driver faces an on-coming vehicle, each driver must find a spot to maneuver so they can pass.

Painted intersectionPainted Intersection  - Also called “intersection repair”, consists of a mural painted by community groups on the pavement at the intersection of residential streets.  This measure can help give your community a sense of place, and is a great way to organize your neighborhood around a common goal.  They may also have indirect effects on helping to slow traffic in your neighborhood by making drivers aware that this is a socially organized neighborhood, and helping encourage them to be respectful of the people that live there while driving down your street. Additional information about painted intersections is available in Client Assistance Memo 2506.


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