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1城市道路设计中存在的主要问题1.1盲目拓宽改造,建造超宽马路由于历史原因,我国城市道路红线宽度普遍较窄,主干道机动车道数较少,一般为双向4～6条。近几年来,随着城市道路交通量的不断增加,机动车交通拥堵现象越来越突出。为了迎合小轿车的交通需求,许多城市盲目拓宽改造旧街道,建造超宽马路,将机动车道数增至8～10条,甚至更多;其新建道路的红线宽度
A major problem in the design of urban roads 1.1 Blindly widen the transformation and construction of ultra-wide roads Due to historical reasons, the width of red lines of urban roads in China is generally narrower, and the number of arterial lanes in main roads is relatively small, generally 4 to 6 in both directions. In recent years, with the continuous increase of urban road traffic, the traffic jam phenomenon of motor vehicles has become more and more prominent. In order to cater for the traffic demand of cars, many cities blindly broaden and transform old streets and build super-wide roads to increase the number of motorized lanes to 8 to 10 or more. The width of the red lines of new roads