TRAFFIC ENGINEERING
Traffic Safety Improvements for Three East River Bridges New York City Department of Transportation
LiRo-Hill improvement recommendations for roadways, approaches, and ramps at the Manhattan, Williamsburg, and Ed Koch Queensboro Bridges. Extensive data was collected to quantify existing conditions, traffic volumes, vehicle classifications, accident history, operating traffic speeds, traffic control devices, clearances, and profiles. developed traffi c safety Data obtained were critically reviewed and analyzed to determine appropriate safety measures including speed limits, warning sign requirements, and advisory speeds along critical sections. Schematic plans were developed to show the proposed improvement measures. All analyses were conducted in accordance with the National Manual on Uniform Traffic Control Devices (MUTCD) and the New York Supplement, as well as applicable NYCDOT, NYSDOT and AASHTO guidelines.
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