走地面道路会不会比较快？
为改善我国立交与地面道路的交通衔接，首先分析了造成衔接段交通拥堵的原因。
To improve the traffic operation of the interchanges and surface streets, the reasons that cause traffic jam in this area are analyzed.
当因交通分流导致地面道路服务水平不可接受时，采取修正调节率或者关闭匝道的措施。
Once surface street service level is (unacceptable) because of traffic diversion caused by ramp control, either the metering rate will be modified or the (on-ramp) will be closed.
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