1.
The route map doesn't tell the truth.

2.
Why do we still need a map-type route map?

3.
The end of the route map is not the final destination?!
(1) If the route is shorter than the route map
(2) If it goes further than the route map

4.
The Lie of the Route Map
(1) Not all branch lines are the same.
(2) Not all circular lines are the same.

5.
Depending on the line type and thickness…?

6.
Seoul Metropolitan Subway Line 1 has a lot to hide

· Source

Due to its nature, a ‘route map’ is bound to be distorted to some extent.
If it's a simple area, it might be okay, but the more complex it becomes, the more this becomes especially true.
The metropolitan subway network in our country's metropolitan area is one of the most complex in the world.
Author Park Tae-jun's "The Lie of the Route Map" is a book that started from this idea.