随着中国城市化率的快速提升和汽车数量井喷式增长,城市拥堵问题近年几何级数地出现,同时伴生愈加严重的交通事故、噪声污染和尾气排放,明显地制约了城市的承载能力和运行效率。拥堵的核心在于城市通行能力增长有限而需求增长过快,交通事故的核心在于出行者和驾驶者素质的提高跟不上城市化和机动车发展的进度。在传统手段无能为力或性价 With the rapid urbanization in China and the increasing number of cars, the problem of urban congestion appears geometrically in recent years with increasingly serious traffic accidents, noise pollution and exhaust emissions, obviously restricting the carrying capacity and operation of the city effectiveness. The core of congestion is the limited growth of urban capacity and the rapid growth of demand. The core of traffic accidents is that the improvement of the quality of travelers and drivers can not keep up with the progress of urbanization and motor vehicle development. In the traditional means powerless or price