Show bridges/tunnels in "Map of world"

[merni]

In the "Map of World" screen where you can see a map of the world, tunnels and bridges don't seem to be displayed. In the case of long tunnels/bridges, this creates an appearance of broken railways/road routes. Could the tunnels/bridges be displayed in the map?

[jfs]

"Maybe", the thing is that bridges and tunnels don't really exist in the map data. That is to say, the way the game code handles bridges and tunnels, it only keeps track of where the entrance and exit of each one are, and when a vehicle drives onto a bridge or into a tunnel it enters a special "warping to the other side" state.
The tiles in-between the two ends don't keep track of there being a bridge or tunnel there, so it's a bit more work than you might initially think to display them on the mini map.

[Emperor Jake]

JGR's zoomed out minimap shows bridges and tunnels as a dotted line no problem, I don't see why that functionality couldn't be extended to the base game minimap too

[peter1138]

The tiles in-between the two ends don't keep track of there being a bridge or tunnel there

Oh but they do. Check out IsBridgeAbove().