ISO 8100-32 · CIBSE Guide D
Lift and elevator traffic analysis
Size the group before you freeze the shaft. Free ISO 8100-32 up-peak analysis in the browser; Pro adds discrete-event simulation and a PDF for submissions.
What traffic analysis answers
Lift traffic analysis (also called elevator traffic analysis) estimates whether a proposed number of cars, capacity, and speed can serve the building population without excessive waiting or crowding.
The usual planning question is up-peak: morning incoming traffic at the main entrance. ISO 8100-32 gives the calculation; CIBSE Guide D waiting-time bands describe how the service will feel.
Analytical check vs simulation
The analytical check derives probable stops and highest reversal, builds round-trip time, then interval (RTT ÷ cars) and 5-minute handling capacity. It is fast and matches how many planning reports are written.
Discrete-event simulation (DES) generates individual passengers and measures waits, destination time, and saturation. Use both: calc for the ISO Table 2 pass/fail, DES when mixed traffic or measured waits matter.
Run a study in the browser
Enter floors, population, cars, capacity, and speed. The free tier runs up-peak analysis with no account. Compare options side by side, then export a report when you need a deliverable.