slow-moving traffic

基本解释

The streets were jammed with slow moving traffic, army convoys moving north-east.
军车队向东北方向行驶，致使街道上车流缓慢，交通拥挤。。
This speed range was chosen because it is when most collisions take place, especially rear-end shunts in slow-moving traffic.
之所以选择这样的速度范围，是因为大多数的碰撞都在此范围内发生，尤其是低速行驶时的追尾事故。
This speed range was chosen because it is when most collisions take place, especially rear-end shunts in slow-moving traffic.
选择这个时速的原因是由于在这个时速段中的交通事发性较大，特别是在慢速行驶车辆中的汽车追尾事故。