You have been hired by a tour company that offers foreign tourists various routes through tirana. Originally the company only offered bike tours, however they are looking to expand their business. They have asked you to help them implement an app as well, with their required design changes, as follows:

$-$ The company wishes to allow all of its clients to find the fastest route towards a specific destination they want to visit.

$*$ The company will provide tours not just for bikes, but also for cars, bus rides and also for tourists who wish to walk.

$-$ Keep in mind that each of these modes of transport have their own routes: A bus can only follow a certain path, as can a car or a bike.

Identify the main design pattern and draw a class diagram for it $($in the context of this