Railroad software business. Creates software for assisting with signal engineering and troubleshooting. Signal engineering is design and maintenance of the stoplights for trains and gates, lights, and bells at railroad grade crossings (where cars cross the railroad tracks). I have two pieces of software. One helps troubleshoot when the signals are not operating properly. The other helps write computer programs that control the signals. I would like the name to remain broad enough to cover the potential for other future software development, but within the railroad signal industry.