Here some ideas, I hope they hadn't already posted

1) For building rail/road ways, we may trace a "line project" instead of building directly le rail/road, this may just buy terrain while designing line. And then, when the line project is finished and OK, we may click a button to start construction. This may not be instantaned, such as in realy (2 or 3 cases per day for example), and it may stop building when money is low, and start again as soon as money is back, such as reality.
2) For terrain configuration, ability to have rail/road ways on the side of the hills (sorry, I'm not fluent with english and i don't know to explain is... I'll do a picture this evening).
3) Roads may support:
- Diagonal as railways
- One sens circulation
- Two type of roads, classical road and speedway (with speed limitations and price differences)
- Truck station may be as train station, with ability to have more than 1 case size and more than 2 trucks at a time on the same satation.
4) Docks/marine:
- Towns may build their own port installations, with boat and truck stations, giving hability to connect train stations from differents players (but one only per player, I'll do a picture too this evening)
5) Trains:
- Depots may be as real ones: Several steps long, and multi-ways, as stations. A train can only enter in the depot and get repared if depot is large enough.
- Steam train in real can't do long target without refilling with coal and water. It may great if we can build some reservoirs were trains can refill. Train that can't refill may be stopped for : nearest reservoir case distance * day to simulate a real reparation operation.
6) Bridges:
- We may be able to build bridges not only over perpendicular ways, but diagonals too, etc.
- Ability to add signals on bridges
7) Tunnel:
- We may able to build under water tunnel to replace long bridges. And very long tunnel and bridges may cost VERY espensive when build other sea. (need to differentiate sea and rivers/lakes)
- Ability to build underground stations, such as in many town, railway stations are undergound.
- Ability to add signals in tunnels
It all for today

I'm conscient that some thing may be very hard to implement and certainely never will, but I prefer ask everything instead of crying after because noone had idea
