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Portland, Ore. – Traffic Calming: Diagonal Diverter

In this short segment, Greg Raisman from the Portland Office of Transportation explains the reasoning behind this traffic calming measure that keeps neighborhoods free of thru traffic.


[intro music]

Greg Raisman: [16:00] Behind me is called a diagonal diverter. There’s a busy street that direction, there’s a busy street that direction in one block. So if motor vehicles wanted to avoid being on those busy streets they might try to cut down by either this residential street behind me, or that residential street. Well what happens is because this diagonal diverter is in place, they’re forced as they turn off of those busy streets back onto the busy street. And it keeps these residential streets behind it residential. It keeps it so that there’s fewer cars, fewer people cutting through the neighbourhood, and it keeps it so that the cars are on the busier streets where we really want more cars to be because they’re designed to handle heavier traffic. This diagonal diverter was designed with pedestrians and bicyclists in mind. It’s really nice as a pedestrian to walk by it, but at the same time it’s a cut-through on a bicycle boulevard that goes east and west through North East Portland. And there’s actually little pavement markings on the street that point bicyclists through it, to really let them know that, yes indeed, they should be using these cut-throughs through the diverter as they’re travelling through the neighbourhood.

[music]

http://transcriptdivas.ca/transcription-canada/

Clarence Eckerson Jr. has been making fantastical transportation media in NYC since the late 1990s. He's never had a driver's license and never will.

6 Comments
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  • Liz

    I've used this traffic diverter as both a pedestrian and a cyclist, and to say the least it's very nice. Indeed, like the video claims, the neighborhood is very quiet compared to the busy streets only a block away.

  • http://ourtrafficsignal.com dmike101

    Never even gaVe this a thought but interesting!

  • David97202

    What about the dwindling parking as the need for parking grows. In areas that have no driveways and depend on street parking . At minimum eight spots get removed!!

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  • Robert

    Maybe there is less need to own cars now that Portland has its transit and expanding bike infrastructure.

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