Very good article on sharrows! My only nit is the repeated references to “research by the U.S. Department of Transportation” without any citation. The San Francisco sharrow experiment by ALTA Planning + Design was hardly a rigorous research study, and I’m unaware of any other sharrow “research”.
I’m thrilled to see Arlington County properly installing sharrows in the centers of travel lanes, rather than in door zones or on the right side of non-sharable travel lanes. As the County properly installs sharrows and promotes the significance of this pavement marking–and as more and more Arlington bicyclists start practicing lane control on arterial roadways–Arlington’s rather high incidences of risky door-zone, gutter-hugging, and sidewalk bicycling should gradually decrease.
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