Feature request title:
Ability to change direction of traffic flow
Description:
Countries around the world travel on different sides of the road and with the ability to select the direction of the travel for vehicles can make it more realistic for airports around the world. For example the UK travel on the left and opposite traffic pass on the right but in France the traffic travel on the right and opposite traffic pass on the left. The game currently is like France and it would be great to see the ability to change direction of the traffic like the UK.
Why it should be implemented:
The reason why it should be implemented is because people may want to have the direction of travel different to the default direction. When you create a new airport you can choose what direction you would like ALL the roads.
Images, references or additional content:
Black Arrow shows direction of traffic flow
An example of a switch to change direction in the part where you choose your airport information and amount of cash.
