北京市区道路交通最拥堵的是上下班时间，特别是在上班之际，车流、人流那种又挤又乱的场景，简直让人头昏眼花，喘不过气来。道路交通拥堵已成为北京市的社会问题。近些年来，除了大力新建、扩建道路之外，市委、市政府和有关部门、专家们，想了不少“缓堵”措施。有的从“路 Road traffic in Beijing is the most traffic congestion is commuting time, especially at work on the occasion, traffic, flow of crowded and chaotic scenes that simply make people dizzy, breathless. Road traffic congestion has become a social problem in Beijing. In recent years, in addition to vigorously building new and expanding roads, the municipal government, relevant departments and experts think a lot of “easing” measures. Some from the "road