A lot of things have been done to solve traffic problems in Singapore for example, motorists must buy a special pass if thay want to drive into downtown or business district Anather thing Singapore has done is to nake it more difficult to buy cars. People have to apply for a certificate if thay want to buy a car. And the number of certificates is limited. Not everyone can get it. There is also a high tax on cars, so it costs three or four times as much to buy a car in Singapor as it does in the United States or Canada. The other thing Singapore has done is to build an excellent