It looks like the authorities at the VRE are trying to come up with a solution to their passenger queuing/overcrowding problem...
http://www.vre.org/about/blog/standing- ... ont-queue/" onclick="window.open(this.href);return false;
http://potomaclocal.com/2017/06/27/thos ... ng-july-3/" onclick="window.open(this.href);return false;
https://fairfaxnews.com/2017/06/new-vre ... etraining/" onclick="window.open(this.href);return false;
http://www.vre.org/about/blog/standing- ... ont-queue/" onclick="window.open(this.href);return false;
http://potomaclocal.com/2017/06/27/thos ... ng-july-3/" onclick="window.open(this.href);return false;
https://fairfaxnews.com/2017/06/new-vre ... etraining/" onclick="window.open(this.href);return false;
[E]ffective July 3, any passenger who is standing in a doorway when the train reaches a station will be required to get off. Passengers who want to continue to ride that train will be allowed to get back on, but only after everyone who needs to detrain or board is able to do that.