4. When are vehicles most crowded?
That would definitely be the rush hour. Say, from seven to nine in the morning and from five to seven in the evening. Traffic jams are bloody murder everywhere when it comes to rush hour: It can be seen by millions of vehicles being screwed up everywhere.
5. What are the advantages and disadvantages of the bus?
The bus is punctual, cheap, and convenient. But it is not punctual any more when it comes to rush hour. Traffic jam caused by millions of cars in rush hour can totally ruin its reputation?
6. How would you improve traffic in cities?
Speaking of traffic,you know,as the saying goes："Roma wasn't built in a day." I think this is not like something can be improved in couple of days and by couple of guys. So I think it is the high time that both government and individuals did something. From government perspective, a series of systematic and reasonable regulations and rules should be implemented based on the currently unsatisfactory situation. As far as individuals are concerned, they should strictly obey all the relevant regulations and rules so that I can set a very good example to other citizens.
7. How could you improve traffic in the cities?
Well,I think as the concrete solutions,although it might sound like a world that is too alien to me, maybe we should consult municipal government officers about how to get it done effectively and efficiently! And I am afraid this is not really my field.