Hello,
Apart from being a big fan of the game, I would like to suggest a few interesting ideas, that could immerse the player, even more.
The ideas:
- Traffic and bus lanes. It would be great to see the traffic flow situation on the map and how the company's buses behave on the roads. For example, heavy traffic could be marked with a red line (similar to what You can see on "Google Maps"). On top of that, there could be a possibility to upgrade our city's roads with bus lanes, which would let skip traffic.
- Electric/CNG buses and their charging/fueling stations. The game could have special quests (with an additional money bonus), that would require purchasing a few eco-friendly vehicles or even upgrading the entire fleet. It would be great to see electric buses being charged overnight by simple plugs or pantographs above them.
- E-ticket card. There could be an option to design and sell these E-ticket cards, which would let NPCs top up them online and don't waste their time at the Customer Service Centre.
I know that this could be hard to implement, but thank You for considering. 
