The city planners should build the roads to handle maximum traffic capacity at the time of initial completion instead of building 4-8 lane expressways that will always operate above their threshold.

城市规划人员在初次竣工时，应当多建造公路来提高交通运输最大能力，而不是建造那些4至8车道的高速公路。这些狭窄的高速公路日后必定将超负荷运转。

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The rational length of auxiliary lane and channelization of urban expressway exit have an important role to increase the exit capacity and decrease the influence to expressway traffic flow from exit.

城市快速路出口附加车道及其渠化长度的合理设置，对于提高出口通行能力和减少出口对快速路交通流的影响具有重要的意义。

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Then traffic volume, capacity of a toll - lane, and level of serve determine the scale of toll - gate and the number of toll - lane.

而收费广场的规模及所需的车道数是由交通量(平均来车间隔)、每个收费车道的通行能力和服务水平三个因素决定的。

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