RLC PT 2

Realistic Locomotive Control (RLC) Platinum (PT) 2.0 is a highly advanced system for simulating diesel-electric (and eventually, electric) locomotives in Garry's Mod. RLC PT2 utilizes Wiremod's Expression 2 platform to capture all significant aspects of diesel-electric locomotive operation in an easily accessible, low-lag package.

Here are some helpful links to get you started:

Understanding RLC PT2

Locomotive Data Sheets