The Dallas Central Business District Second Light Rail Alignment, known as the D2 Subway project, is a proposed second light rail line through downtown Dallas that extends from Victory Park to Deep Ellum. DART began planning for D2 in 2007.

Currently, all four DART Light Rail lines pass through the at-grade Bryan/Pacific Transitway Mall. The D2 Subway would help ensure the sustainability of the DART Rail System by increasing capacity and improving system reliability and passenger service through downtown Dallas. 

The COVID-19 pandemic and subsequent changes in ridership and travel patterns have led many transit agencies around the country to reassess their plans and priorities. Within the DFW area, travel behavior changes have affected rail ridership, especially during typical peak-period commute times.

One of the primary purposes of the D2 Subway project was to address the anticipated growth in peak period demand to and through downtown Dallas. However, work-from-home trends, growing regional employment centers outside of downtown Dallas, and the changing nature of downtown Dallas into a more mixed-use neighborhood led DART to defer significant investment in the D2 Subway project.

With the recently completed Red and Blue Line Platform Extensions project, DART can now operate longer trains systemwide to address ridership growth in the foreseeable future. DART will continue to monitor trends and will advance appropriate capacity improvements when warranted. 

Additional Information on the D2 Subway Studies and Planning Efforts.