TrafficJam.pptx

文档介绍：Traffic Jam
材料学院
沈艳波
2120131169
Major modes of transportation
Modes of Transportation
运输工具
railway transportation
road transportation
water transportation
air transportation
light train
Inter city train
maglev train

car
bicycle
Bus

passenger liner
hover craft sailing ship
ocean liner

hot air balloon
Jet aircraft
propeller driven aircraft

With so many kinds of means of transportation, it is convenient for us to travel around in the city.But at the same time, we have to face a big problem of transportation----
traffic jam
Why do traffic jams often happen?
1. Many people do not obey traffic rules, especially at busy intersections.
2. The construction everywhere and the increasing population
3. Traffic accidents
What should we do to solve it?
take public vehicles,such as double-decker bus, Trolleybus, subway and so on.
What should we do to solve it?
obey traffic rules
keep to the right side of the road;
we must look both sides carefu