Question

Traffic jam occurs when _________.

• A. many vehicles are on the road
• B. vehicles present on the road are more than the road's capacity
• C. all vehicles are stopped because of traffic lights
• D. vehicles on the road move slowly due to lower vehicle capacity of the road

Answer 1

Answer: (B), (D)

vehicles on the road move slowly due to lower vehicle capacity of the road

Traffic jam occurs when there are more vehicles than the road can handle. As such the vehicles are not able to move fast.