The Simple Design Change That Could Open the Doors to Automated Rail

Streetsblog
By Stephen RepetskiNov 4, 2026, 12:01 am79 ptsTrending
A version of this article originally appeared on Greater Greater Washington and is republished with permission. Platform screen doors, or PSDs, provide a physical barrier between riders and open train tracks. And they may be coming in the near future to Metrorail’s Red Line in Washington, D.C. PSDs are the…

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