Elevator Traffic Analysis Calculator

Car count and capacity from building population and usage.

Building population

Floors above lobby

Car capacity (persons)

Loading factor

Floor-to-floor height (m)

Rated speed (m/s)

Door open+close time (s)

Tab to move between fields

Cars required

Round-trip time (s)201.7

Average interval (s)50.4

Handling capacity (%)15.5

Peak 5-min demand60

Probable stops7.1

Passengers per trip13

How to Use This Calculator

Enter Building Population and Floors above lobby.
Set Car Capacity (persons), Loading Factor (0.3-1), and Floor-to-Floor Height (m).
Input Rated Speed (m/s) and Door Open+Close Time (s).
Review Round-Trip Time (s), Handling Capacity (%), and recommended number of cars.
Use 5-minute handling capacity >= 12% of building population as the design target.

How the result changes with Building population

Building population: Total number of occupants above the lobby level.
Floors above lobby: Number of floors served above the main lobby.
Car capacity (persons): Rated passenger capacity of each elevator car.
Loading factor: Fraction of car capacity used per trip (typically 0.7-0.9).
Floor-to-floor height (m): Average floor-to-floor height in metres.
Rated speed (m/s): Elevator rated speed in metres per second.
Door open+close time (s): Total time for doors to open and close at each stop.

Cars required: Minimum number of elevator cars for 12% up-peak handling.
Round-trip time (s): Time for one car to complete a full up-peak round trip.
Average interval (s): Average time between successive car departures from the lobby.
Handling capacity (%): Percentage of building population served per 5-minute peak.
Peak 5-min demand: Expected passenger arrivals in the peak 5-minute period.
Probable stops: Expected number of stops per trip (statistical).
Passengers per trip: Passengers carried per car per trip.

Identify Input Parameters
4 parameters
Building population = 500, Floors above lobby = 10, Car capacity (persons) = 16, Loading factor = 0.8 = 7 input(s) provided
Calculate Cars required
4 = 4
Calculate Round-trip time
Round-trip time = 2 * N * t_f + (S + 1) * t_s + 2 * P * t_p
201.7 = 201.7
Calculate Average interval
50.4 = 50.4