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1 概述交通信号控制系统在城市交通中发挥着无可替代的作用。近年来广州市市区的灯控路口的数量从2000年的287个增加到2006年的780个,SCATS 区域交通控制系统和智能交通管理指挥系统也初显成效,有效地缓解了市区的交通堵塞状况。随着广州市社会经济的快速发展,原来无信号控制的交叉口和斑马线已经不能适应流量增长的要求,经常发生拥堵现象,也存在较大的安全隐患。另外,随着城市布局的逐渐拉开,新增的交叉
1 Overview Traffic signal control system plays an irreplaceable role in urban traffic. In recent years, the number of light-controlled junctions in downtown Guangzhou has increased from 287 in 2000 to 780 in 2006. The SCATS regional traffic control system and the intelligent traffic management command system have also shown initial success, effectively alleviating traffic in urban areas Blockage situation. With the rapid socio-economic development in Guangzhou, the original no signal control of the intersection and the zebra crossing have been unable to meet the requirements of traffic growth, frequent congestion, but also there is a big security risk. In addition, with the city layout gradually opened up, the new cross