TEX Rail commuter line opens
https://www.metro-report.com/news/suburban-commuter/single-view/view/tex-rail-commuter-line-opens-1.html
This railway will play a role as express train of the existing DART line.
Then, I thought it would be more cost-effective to add siding tracks in intermediate stations on DART line to allow express trains to overtake local trains than building new tracks.
Anyway, I'm looking forward to seeing inauguration of TEX Rail Commuter.