+ In general, New York City subways run every 2-5 minutes during rush hour, every 5-15 minutes during the day and approximately every 20 minutes from midnight until 5 am
+ Subway "rules" -- Don’t block the doorway. Don’t take up unnecessary seating space. Don’t stare. Don’t spill food or drink. Don’t lean up against the pole. Conductors are found near the middle car. Don't get on empty cars.