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MAKE A MEME View Large Image Seattle DOT makes extensive use of green bike boxes to facilitate two-stage turns by people riding bikes on cycletracks and on streets with streetcar rails. But they're often badly mis-constructed, as in this bike box that's barely one ...

Seattle DOT makes extensive use of green bike boxes to facilitate two-stage turns by people riding bikes on cycletracks and on streets with streetcar rails. But they're often badly mis-constructed, as in this bike box that's barely one ...

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Keywords: bike bicycle infrastructure cycletrack mutcd sdot outdoor Seattle DOT makes extensive use of green bike boxes to facilitate two-stage turns by people riding bikes on cycletracks and on streets with streetcar rails. But they're often badly mis-constructed, as in this bike box that's barely one wheel deep -- not large enough to actually hold a single bicycle lined up to turn. Two-stage turn boxes are experimental, so FHWA approval is required before installing them, and they must meed FHWA's minimum standards for experimental facilities. SDOT has chosen to skip that whole process, however, so its turn boxes do not meet FHWA minimum requirements, are not registered with FHWA, and do not collect the collision data required for FHWA to adopt permanent standards for two-stage turn boxes. For more on two-stage turn boxes, see www.fhwa.dot.gov/environment/bicycle_pedestrian/guidance/... Seattle DOT makes extensive use of green bike boxes to facilitate two-stage turns by people riding bikes on cycletracks and on streets with streetcar rails. But they're often badly mis-constructed, as in this bike box that's barely one wheel deep -- not large enough to actually hold a single bicycle lined up to turn. Two-stage turn boxes are experimental, so FHWA approval is required before installing them, and they must meed FHWA's minimum standards for experimental facilities. SDOT has chosen to skip that whole process, however, so its turn boxes do not meet FHWA minimum requirements, are not registered with FHWA, and do not collect the collision data required for FHWA to adopt permanent standards for two-stage turn boxes. For more on two-stage turn boxes, see www.fhwa.dot.gov/environment/bicycle_pedestrian/guidance/...