高手帮忙翻译一下 最好人工翻译 如果机器翻译的通顺也行

Along with the economical development, the urbanized advancement, the private car entered the common people family, the urban road appears even more crowded, to solve this problem to be possible in the road intersection establishment separate grade crossing. The separate grade crossing is when refers to the path and the path, the path and the railroad intercross, with the viaduct or the tunnel causes two intersection routes in the elevation different horizontal plane the intercross the traffic equipment. The separate grade crossing Jian Chengwei grade separation, it by the spatial separation stream of vehicles's way, avoids the stream of vehicles forming the conflict point in the road intersection, reduces the delay, assures the traffic safety, and sharpens the traveling capability and the transportation efficiency. This article through investigates the Huai Hai north road and the yellow waterway's cross four corners volume of traffic, and forecasts 20 year later volume of t