I am glad to know there are more fans like to create automation train layout. I think you need RCX to control tracks, not stations or trains, you can get some ideas from my page (URL) RIS1.0 is the best if you use them in layout. You also need to (...) (23 years ago, 28-Oct-01, to lugnet.trains, lugnet.robotics)
Zhengrong is right, the biggest trouble is controling the train's speed. And really one sensor is barely enough for each station especially if the train's speed varies from station to station. BTW if there is only one train you can gang up sensors (...) (23 years ago, 29-Oct-01, to lugnet.trains, lugnet.robotics)