Nowadays, there are many options to travel. One way of transport, is public transport. It has a lot of advantages, however it has some disadvantages too.
On the one hand, bus train and underground are cheaper than private transport, because when you drive your own car you have to pay the fuel.
The public transport is more ecological. The people can travel together and don't need to go in their own vehicle, and ther is less pollution.
On the other hand, it is more uncomfortable than your car. There a lot of inside the transport and sometimes you can´t a free seat, so you have to stand for a long time.
The public transport is slow. Usually, it has a schedule, therefore if you had an appointment, you could be late.
In my opinion, this one is a good way to travel, and it is trendy, but I think that it needs to improve some things to be perfect.