Algodoo

Includes the high speed TGV train, which is only good on straights and gradual turns, the Flying Scotsman, and the Union of South Africa, which has only recently been made. (Do what the instructions say on the TGV , for better experience! have fun.

P.S. The point (with the two red arrows) will have to be operated manually, so you have to drag it with the hand tool during the simulation.