slow-moving traffic

基本解释

The streets were jammed with slow moving traffic, army convoys moving north-east.
軍車隊曏東北方曏行駛，致使街道上車流緩慢，交通擁擠。。
This speed range was chosen because it is when most collisions take place, especially rear-end shunts in slow-moving traffic.
之所以選擇這樣的速度範圍，是因爲大多數的碰撞都在此範圍內發生，尤其是低速行駛時的追尾事故。
This speed range was chosen because it is when most collisions take place, especially rear-end shunts in slow-moving traffic.
選擇這個時速的原因是由於在這個時速段中的交通事發性較大，特別是在慢速行駛車輛中的汽車追尾事故。