Door dwell time is the interval the doors stay fully open before automatic closing begins. It is usually set separately for car calls and landing calls, with typical values of 2 to 4 seconds for a car call and 4 to 7 seconds for a landing call, since a waiting passenger needs longer to reach the door. Accessibility standards such as EN 81-70 require longer dwell times where wheelchair users are expected. Dwell time is one of the most effective settings for improving handling capacity in a busy building.