||If you've got the model train bug, climb aboard CATrain. It's a tool for designing, simulating and controlling digital model railways. CATrain lets you draw simplified schematics of railroad layouts on your PC, including turnouts, signals and level crossings. Once you've designed your layout, you can run a simulation of several train models on it. If that's not pure bliss, try this: hook up a dedicated controller and you can control a real model railway from your PC. You can set the trains to either travel under manual control or automatically, following user defined itineraries. In Automatic mode, CATrain controls the journey, the schedule and the track contention for every train. CATrain even simulates gradual acceleration and deceleration for a more realistic effect.