Elevator Bank Configuration Calculator

Number of elevators from building height and population.

Building population

Number of floors

Car capacity (persons)

Handling capacity %

Car speed (m/s)

Floor-to-floor height (m)

Tab to move between fields

Elevators required

Up-peak interval (s)120

Round-trip time (s)120

Expected stops per trip7

5-min handling capacity32

5-min peak demand24

How to Use This Calculator

What each input means

Building population: Total above-grade occupants in the building.
Number of floors: Total floors including ground floor.
Car capacity (persons): Rated passenger capacity per elevator car (typically 10-21).
Handling capacity %: Percentage of building population to move in 5 minutes during up-peak. Office: 11-15%, residential: 5-7%.
Car speed (m/s): Elevator rated speed. Low-rise: 1-2 m/s, mid-rise: 2.5-4, high-rise: 5-10.
Floor-to-floor height (m): Typical floor-to-floor height in meters.

Elevators required: Minimum number of elevator cars needed to meet the handling capacity target.
Up-peak interval (s): Average time between successive car departures from the lobby. Target: ≤ 25s excellent, ≤ 30s good (office), ≤ 40s acceptable (residential).
Round-trip time (s): Time for one car to complete a full round trip from lobby and back.
Expected stops per trip: Probable number of stops per up-peak trip (Barney formula).
5-min handling capacity: Total persons the elevator bank can handle in 5 minutes.
5-min peak demand: Number of people expected to need transport in the 5-minute peak.

Identify Input Parameters
4 parameters
Building population = 200, Number of floors = 10, Car capacity (persons) = 16, Handling capacity % = 12 = 6 input(s) provided
Calculate Elevators required
Elevators required = max(1, ceil(numCarsExact))
1 = 1
Calculate Up-peak interval
Up-peak interval = RTT / numCars
120 = 120
Calculate Round-trip time
Round-trip time = travelTime + stopTime + loadUnloadTime
120 = 120