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DART South Oak Cliff (SOC) – 3 Blue Line Extension

Project Highlights

  • Responsible for OCS, traction power, signals and communications work on the 2.6-mile expansion of the DART Blue Line in the South Oak Cliff neighborhood of Dallas
  • The project was accelerated by the DART which in turn caused the transit systems work to be constructed, tested and commissioned within 6 months during one of the hottest years on record for the Dallas area.
Dallas Area Rapid Transit (DART)
Dallas, Texas
Provided By

The South Oak Cliff Blue Line Extension was a CMGC project that extended the Dallas Area Rapid Transit (DART) Blue Line south 2.6 miles from the existing Ledbetter Station to the University of North Texas Dallas campus. The project broke ground in 2014 and finished in 2016, with L.K. Comstock National Transit, Inc. (LKCNT) completing its work from 2015-2016.

As the subcontractor, LKCNT was responsible for designing, furnishing, assembling and installing:
- A simple overhead catenary auto-tensioned (SCAT) OCS system
- Two traction power substations
- A train control system that was capable with DART’s existing cab signaling system
- A complete communication system including subsystems such as SCADA, public address, visual message boards, intrusion alarm, fire alarm, network and fiber optic connectivity.

LKCNT was also responsible for the integration of OCS, traction power, communications and train control with existing systems. Additionally, the LKCNT team integrated the new line with the existing wayside terminus at Ledbetter Station, the LRT vehicles and the operations center.

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