Why runways have so many side paths?

Question

In the image below, you can see a visual of the new runway (in red) which will be constructed at the Prague airport.

[https://imgur.com/a/536YPqM](https://imgur.com/a/536YPqM)

I understand the need of multiple crossings, but one thing I don’t realize is the side pathway you can see on the left side, where when departuring from the airport, you can turn right, away from the runway. I am talking about the green circled part specifically. What purpose does it have?

In: Engineering

Answer 1

Airplane lands. Some are large some are small. Some need more runway to slow down while small planes don’t need much at all. You want off ramps so you don’t clog up the runway any longer than you have too.