It is random, because one can't know where there will be an accident, a traffic jam.
Sometimes intention is caused by deliberation alone, such as the decision to take an alternative route when faced with a traffic jam.
So if a person fails to vote because they were caught in a traffic jam, then they have not necessarily been made unfree to vote in the relevant sense.
Anybody who has been stuck in a traffic jam for 10 or 15 minutes must resent the waste of time.
One has all of the electrical appliances that make sitting in a traffic jam that much more comfortable.
It caused a traffic jam for three hours.
It can take two hours to reach a hospital when one is travelling through a solid traffic jam.
What really gets one is that there is no warning about the traffic jam in which one suddenly finds oneself.