Signals help our trains communicate. They tell them when to stop, when to go, when to slow down, and when they can speed up. Today, the Orange and Green lines operate on a different signaling system than the Red and Blue lines. DART Transform will update the signaling system on the Red and Blue lines, creating more consistent and reliable communication across the entire light rail network. This upgrade will also support the new light rail vehicles once they are in operation.
In addition to unifying the signal system, DART is adding back up power to signal houses throughout the system. During power outages, trains can lose the ability to communicate with the signaling system, which can lead to service delays. Backup power will help keep signals operating and trains moving regardless of the weather.
Signal houses can be susceptible to lightning strikes. The control system in the signal houses will be upgraded to prevent lightning strikes from destroying circuit boards and causing service interruptions across the light rail network.
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