Brandon G. Donnelly reports that after implementing a Downtown protected bike lane along 2nd Avenue, Seattle has had to make some adjustments to the signaling for the lane.
In a lesson in the importance of details when describing novel infrastructure facilities, Donnelly describes how the 2nd Avenue bike lane's special signals for drivers, a left green arrow and solid green circle, were causing confusion. "The intent was for the left green arrow to signal that you could turn and for the solid circle to signal that you could drive straight ahead….But even with the accompanying sign, drivers kept getting confused and thought a green circle meant you could go wherever you want."
Given the confusion, the Seattle Department of Transportation "changed the green circle to a north arrow."
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Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Economic & Planning Systems, Inc.
UCLA Lewis Center for Regional Policy Studies
Mpact (formerly Rail~Volution)
Chaddick Institute at DePaul University
City of Piedmont, CA
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research