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TRIS Online Accession Number:00780093
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NTL Classification:NTL-PEDESTRIAN AND BICYCLES-Pedestrians;NTL-SAFETY AND SECURITY-Highway Safety;NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control Devices;
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Abstract:In the fall of 1997, the city of Kirkland installed small flashing LEDs in the
pavement at two crosswalks. Devices are installed across all travel lanes for
both directions of travel on each side of the crosswalk. When activated,
lights in the pavement flash at drivers across the entire roadway in both
directions. Pedestrians wishing to use the crosswalk activate the flashers
using standard pedestrian pushbuttons and the LEDs flash in a proprietary manner
via a small solid state controller, for a programmable amount of time. This
paper summarizes Kirkland's successful use of the LightGuard devices. Flashing
crosswalk devices are particularly suited to small communities because:
1) They work well in relatively isolated/high speed settings, 2) Cost of
materials and installation is around $15,000, 3) They are more effective than
normal "constant on" overhead flashers, yet a fraction of the cost of traffic
signals; and 4) They allow local officials to respond in an effective,
reasonable way to the traditionally difficult issues of school and pedestrial
safety concerns. 9p.
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