Most often, they are caused by idiots - those who drive too fast always end up riding up on those driving the speed limit in front of them, recklessly weaving in and out of lanes because they feel the road is their own personal playground. You get what's known as rush hour when you factor in the same number of roads and lights and detours and closed lanes from construction with how overpopulated the area is.
See the related link below:
causes and effect of traffic jams
Traffic congestion and traffic jams in Egypt are caused by a lack of parking areas, cheap fuel, and limited public transportation options.
No It's unsafe and it causes traffic jams.
It's unsafe and it causes traffic jams.
It causes traffic jams..there will be more pollution.
Yes It's unsafe and it causes traffic jams.
No there are not traffic jams on the moon
Want to avoid traffic jams? Don't all leave at once. If everyone leaves early to avoid the jams, they will become the jams.
Get a satnav.
They regulate the traffic during traffic jams
The Beijing traffic jam (60 mile traffic jam for 10 days)
At first we shall control our population, because more population means more traffic jams. We shall construct the road in a spacious manner. We shall obey the traffic rules.