Driving a car is the most dangerous thing in the world, because most of accident involves cars. How can we reduce the quantity of the accident. There are also several solutions for solving the problem of traffic jams that have enforced. The government built carpool in the free way to encourage more than two people drive one car that those cars drive in the carpool. This solution can solve the problem partly, it s not so effectively as encouraging people to take a bus, because the capacity of a bus is much bigger than a car.
Some people suggest that expanding the free way more widely can solve the problem.
But expanding the free way needs a lot of money and this solution will encourage people drive a car more usually, the traffic jam will not relief, even more critical than before.