If someone goes on a hill or a high place and has a look at what is going on, down on the vast area, he will see a lot of curved lines that are like snakes, creeping in each other and there are some tiny objects that are moving like thousands of insects. Living in modern cities needs more traveling during the day because people go to different work places.

This is a good reason for having a liable transportation system that is able to transfer every body from one place to another one. S...

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