Traffic Control Strategy for a Surface Street on an Expressway-Arterial Corridor

Off-ramp area congestion and off-ramp queue spill over are wide-spread reasons for expressway traffic jams in China. A control strategy was developed to reduce the number of collisions between expressway and surface street vehicles and to reduce spill over by controlling the surface street vehicles...

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Published in:Tsinghua science and technology 2009-12, Vol.14 (6), p.776-781
Main Author: 金盛 王殿海 王立明
Format: Article
Language:English
Subjects:
off-ramp spill over
simulation
surface street metering
交通拥堵
交通控制策略
地面控制
性能指标
高速公路
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creator 金盛 王殿海 王立明
description Off-ramp area congestion and off-ramp queue spill over are wide-spread reasons for expressway traffic jams in China. A control strategy was developed to reduce the number of collisions between expressway and surface street vehicles and to reduce spill over by controlling the surface street vehicles to improve the traffic conditions near expressway off-ramps. This control algorithm monitors the traffic conditions at the off-ramp using occupancy rates and a performance index for the surface street vehicles, and then optimizes the control signal split and cycle length for the surface street vehicles assuming that the off-ramp queue is shorter than the minimum allowable length. Simulations indicate improvements in the traffic flow with the average vehicle travel time nearly 10% less and the off-ramp queue reduced significantly.
doi_str_mv 10.1016/S1007-0214(09)70148-8
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1878-7606
1007-0214
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source IEEE Xplore All Journals
subjects off-ramp spill over
simulation
surface street metering
交通拥堵
交通控制策略
地面控制
性能指标
高速公路
title Traffic Control Strategy for a Surface Street on an Expressway-Arterial Corridor
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