rEvolving Transportation

Sharing information about Traffic Signals, Bicycles, Technology, and the Urban Form. I work for the City of Portland. The views expressed on this blog are my own.

Sunday, March 29, 2015

Media Quoting What I said in a Webinar

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I have been asked to speak for professional society webinars on occasion in the past several years. One of the recent webinars was for the A...
Wednesday, March 11, 2015

Clearance Intervals: How Long should a Yellow and Red be?

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I have been studying this issue for what seems like half my career, both as the Principal Investigator for the Federal Highway Administratio...
Friday, February 20, 2015

Sub/Urban & Transportation Related Songs

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I love the song Shop Vac is song by Jonathan Coulton because it starts with "We took the freeway out of town" and laments about t...
Sunday, January 11, 2015

Power & Importance of Research #TRBAM

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I blame graduate school and the internet (yes, that was new way back then) for the excitement I have for the research of transportation...

Comments from Professionals Against Changing the MUTCD

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This post was inspired by how complicated it can be to modify a standard sign. The specific sign is shown below and is the  Right Turn Yield...
1 comment:

TRB Annual Meeting 2015 papers

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I am always proud of the range of work that I can be involved in to advance the profession. The following is the abstract of each paper I ha...
Friday, January 9, 2015

NCUTCD Bicycle Technical Committee Reviews Two Stage Queue Box

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The first day of meetings of the National Committee on Uniform Traffic Control Devices Committee started off in the afternoon with a discu...
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