0 a line of vehicles that have stopped or are moving only very slowly, because of an accident or other problem on the road in front of them -- （路上因受阻而形成的）车辆长队，长龙
We should get tailbacks three times as long as we get already.
Although evening working was deliberately chosen to minimise disruption, the onset of heavy rain and several vehicle breakdowns unfortunately combined to cause the tailback.
He drew a picture of being caught in a 25-minute tailback while everyone was randomly tested.
The improvement of roads, such as in the examples just quoted, can relieve congestion, relieve three-mile tailbacks at roundabouts and materially reduce pollution.
Average tailbacks of traffic at bridge openings are three quarters of a mile in both directions.
Increasing congestion and tailbacks made the widening project essential.
The tailbacks were horrendous and life was literally rendered intolerable for thousands of people.
I do not believe that removing payment for the crossing is any answer to the tailbacks or the problems with which we must cope.
