To answer another common question, the reason Norfolk Southern doesn't allow passengers to open the vestibules on cars during mainline excursions is safety. The inaugural runs in 2011 were the only trips that passengers were allowed to stand in the vestibules. Leaning out the window poses a number of safety hazards. Cinders from 630 fly out in abundance and can get in someone's eyes, many passing sidings are very close to the train, and branches from trees often scrape the train. Standing in the vestibule, even with the window closed, also poses a safety concern. The vestibules of the cars are designed to absorb lots of the impact in the unlikely event of a crash, thus crumpling.