I'm going to be in Alexandria in May and plan to spend a few hours railfanning at the station. I have been there many times and have observed that eight car trains don't make the platform lengths at Alexandria. I have seen several eight car VRE trains. This will also help Amtrak trains, which many of them operate with at least eight cars. It will be great when the other Virginia Railway express stations on the Fredericksburg Line have platforms on both sides. That will probably help provide more flexibility with railroad movements.