Many people like to travel by plane, but I don't like it because an airport is usually far from the city. You have to get there early and wait for hours for the plane to take off and it is often late. Planes are fast, but they still take hours to get out of the airport and into the city.
I like travelling by train. I think trains are safe (安全). Train stations are usually in the cities. When you are late for a train you can catch another one. You can walk around in the train and open the windows. You can see many interesting things on your way. I know it takes a little more time.
I also like cars. You can start at any time (随时), and you don't need to get to a train station or a bus stop. Also you can carry many things with you in a car. But sometimes there are too many cars on the road.