adf88 opened the ticket and wrote:

Cost of changing the type of a bridge is the same with and without adding new road types.

Steps to reproduce:

1. Open road building toolbar
2. Build two same bridges
3. Change type of the first one and note the cost
4. Select tram building toolbar
5. Change type of the second bridge (to the same type as previously) and note the cost
   The cost is the same, but in the second case we are ending up with additional tram tracks.

Fix patch attached (the cost of the surface is multiplied by each road type):

Attachments

• fix_road_bridge_upgrading_cost_r22654.diff (0.58 KiB)

Reported version: trunk
Operating system: All

This issue was imported from FlySpray: https://bugs.openttd.org/task/4680