The Ways to Solve Traffic Problem

The urban traffic is getting increasingly crowded，especially in China. The roads of big citys pakced with cars, bicylces and pedestri.even
the same in toronto. Bus delays and traffic accidents are a common scene.
　Then how to solve this problem? Some people sugges to lay down more roads to make the traffic less crowded and speed up the flow of
traffic. Others believe that we should open up more public bus routes, so that more people will take the public buses instead of travelling
by cars and bicycles.
　Though above two views sound reasonable,but they have their own drawbacks. it may take much land which could be used for farms and houses.
The latter may cause inconvenience for those who are used to travelling by car or bicycles.in addition,and those method is not able to solve
problem in developed country like in Canada,many Canadian this every one have a car is necessary.they don't like ride the bus or bike to go
to work or study. I think built subway with combination of the two can solve alot problems. More roads can be built to hold more traffic and
meanwhile more public bus routes can be opened up to those who prefer to use the public transportation.