@jellyfishhunter @ajsadauskas@pixelfed.social It's the front.If there's an emergency in a tunnel and the train has come to a complete stop, then passengers can escape through the front window instead of exiting through a side door. And there's various types of emergencies (fire, derailment, explosion) where it's likely to be safer for passengers near the ends of the train to exit through the front or rear window, rather than try to exit through a side door and potentially walk past a safety hazard.