The most common problem for many people that the problem about the use of cars in college could result from a lot of causes. First, there aren't enough parking lots allocated for students and other people in the university. Therefore, this makes it difficult for people to park perfectly, then they decide to park wherever they want to, and later on, the traffic jam is always the final result. Second, one-lane roads that are too narrow to drive give us no choice for parking. Then, it makes a sharp contrast jam. Third, lots of students who wait for the bus sometimes get on the bus without any cares, thereby; this easily leads to accident because the car is just right behind them. Last, students don't really pay attention while crossing the road, which they're actually supposed to, so that many kinds of accidents often happen.