Nowadays, people use more private car, which leads to more cars on the road, heavy traffic jam and air pollution. These problems always happen especially in the cities. I agree with the way to solve this problem by encourage people to use public transportation instead of using private cars because it is the best and easy way that people can do. Using public transportation saves a lot of money. Firstly, people do not have to buy their own cars. When it comes to prices, the fare for buses or taxis are cheaper than private cars when compared bus fare to the oil price. Accordingly, people do not have to spend lots of money on gas that they have to fill the tank. Also, they do not have to find a place for parking as well.