Customer service in an elevator system during up-peak

This article discusses passenger service in an elevator system during up-peak. There are several indicators describing elevator and passenger service, such as round-trip time and interval, passenger waiting time, ride time inside a car and journey time. Well-known equations for elevator round-trip times and mean passenger waiting times are referred to. The elevator service time at an entrance floor is the time interval between sequential elevator departures for upper floors. The time a passenger spends in an elevator traveling up to the destination floor is different from the elevator service time. It depends on the destination floor, the number of intermediate stops before the destination, and the passenger loading and unloading times. New equations for the passenger ride time inside the car and the total time a passenger spends in an elevator system (journey time) are deduced using transition probabilities between the floors. Theoretical results are compared with simulated results, and the validity of the theories is discussed.