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Bad Design

Bad Design. Intersection Stop Markers. Presented By Joy D. Barbara. Designed to be a permanent visual signal that shows where a vehicle should safely stop. The Problem. Line does not physically stop vehicles No room for vehicles to turn Cars over the line unable to back up in heavy traffic

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Bad Design

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  1. Bad Design Intersection Stop Markers Presented By Joy D. Barbara

  2. Designed to be a permanent visual signal that shows where a vehicle should safely stop

  3. The Problem • Line does not physically stop vehicles • No room for vehicles to turn • Cars over the line unable to back up in heavy traffic • Chain-reaction • Traffic STOPS • Congestion INCREASES • ACCIDENTS OCCUR

  4. Most common types of collisions at signalized intersections Sideswipe 12% Rear End 42% Broadside 28%

  5. A barrier would give motorists a visual and physical reminder of where to stop

  6. The gate would be timed to work with the traffic lights, DOWN on Green, UP on Red

  7. References • Slide 2 http://maps.google.com/maps?hl=en&tab=wl • Slide 3 J. Barbara http://maps.google.com/maps?hl=en&tab=wl • Slide 4 www.fhwa.dot.gov/publications/research/safety/04091/02.cfm#table7 http://www.flickr.com/photos/brendanfalkowski/1270118330/ • Slide 5 http://maps.google.com/maps?hl=en&tab=wl • Slide 6 J. Barbara

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