Question

what do you mean by traffic jam ​

Answer 1

traffic jam means in roads due to some reason vehicles are moving slow on large scale then the situation is happens is known as traffic jam.

Answer 2

When too many vehicles are In the road and stay in a line without moving from its place that's leds to the Jam and that is termed as traffic jam.

Most of the traffic jams occurs in metropolitan cities like :-

(¹) Delhi

(²) Mumbai

And the world's longest traffic Jam is occurred in #China.

here's your answer.