Talking about different means of transportation 

Generally speaking, planes are the safest traffic transportation. It is very fast, but the flight tickets are very expensive in China . If you have a long distance trip more than 800 kilometers, we should take planes . Trains are much cheaper than planes. If your destination is located near the train station and within 300 kilometers, you should take trains. They are more comfortable than planes. 
Of course, you take a plane or a train, you must catch the plane or train by plane or train timetable. So the most convenient tool is car, you can travel anytime and anywhere you like. Do you agree with me?