Documentation

VT Planner Analysis Guide

Guide to choosing a VT Planner analysis mode, setting demand and operating controls, and launching calculations, simulations, multi-run studies, and batches.

Use Analysis to select a saved elevator setup, define the scenario, and start a calculation or simulation. Read the Launch panel before execution: it combines setup validity, demand validity, account availability, and run limits.

Before Launching

You need:

a saved building;
a saved setup for the current building version;
a setup that can serve the selected demand;
no other Queued or Running run in the same project;
account permission for another active job;
usage remaining under the account limits.

The selected setup is marked Ready, Action needed, Outdated, or Not selected. Correct the message shown in the launch panel instead of repeatedly submitting the same run.

If the message concerns access, usage, or active-job limits, see Account and Support.

Choose the Analysis Mode

Mode	Best use	Main output
`Calculation`	Fast sizing, screening, and structured comparison.	RTT, analytical interval, handling capacity, and related estimates.
`Simulation`	One time-based realization of passenger arrivals, queues, dispatch, loading, and transfers.	Passenger outcomes, distributions, queues, activity, charts, and replay.
`Multi-run simulation`	Repeated simulations when seed variability or precision matters.	Aggregated metrics, percentiles, confidence intervals, and a replayable sample.

Calculation

Select a Traffic profile available for the saved building type. Custom exposes direct Incoming, Outgoing, and Interfloor demand in % population / 5 min.

Losses (%) applies an RTT loss allowance from 0% to 25%. Record and keep it consistent when comparing alternatives.

Use Calculation when a quick capacity and interval check answers the question. Use Simulation when dispatch decisions, stochastic queues, load bypass, time-varying demand, or transfer waiting are important.

Confirm the selected setup, traffic profile, losses, and Demand used before launching a calculation.View full size

Simulation

Configure:

Control	Effect
`Dispatcher`	Selects the call-assignment strategy, such as ETA or ACA.
`Traffic profile`	Selects a Standard profile, `Custom`, or `Advanced custom demand…`.
`Duration (min)`	Sets the simulated horizon from 1 to 60 minutes.
`Seed`	Reproduces the same stochastic realization when the same scenario is run again.
`Capacity factor (%)`	Limits usable loading to a percentage of rated capacity.
`Load bypass (%)`	Sets the load threshold above which a car can bypass new calls.
`Coincident bonus`	Uses `Auto` or a manual value for compatible ETA dispatch scenarios.

A Standard simulation keeps one profile for the full duration and records the operating controls with the run.View full size

Choose the Dispatcher

Dispatcher	What it represents	When to use it
`ETA`	The default, wait-time-oriented dispatcher. It allocates a conventional landing call using the estimated car arrival time.	Use it for a conventional-control baseline or when passengers do not enter their destination at the landing.
`ACA`	Destination dispatch: the passenger destination is available before boarding and the system allocates a car, allowing compatible trips to be grouped.	Use it when the modeled installation has destination entry at the landing.

Coincident bonus is available with ETA. It gives preference to a car already due to stop at the requested floor, which can avoid an additional stop when calls coincide. Keep Auto unless a documented manual value is part of the study, and keep the same setting when comparing elevator alternatives.

Standard profiles use one percentage-based demand for the full simulation. Advanced demand uses an absolute, time-varying origin-destination schedule. See Standard Traffic Profiles and Advanced Custom Demand.

Multi-run Simulation

With the Advanced multi-run controls off, VT Planner uses the recommended default of 10 simulations. These controls are separate from Advanced custom demand. Turn the multi-run controls on when you need to set:

Simulations for a fixed-count run;
Random seed or Explicit seed.

The allowed run range for the account is shown next to Simulations.

Multi-run analysis options with the advanced multi-run controls enabled, simulation count, seed policy, demand summary, and displayed account limit — Use the Advanced multi-run controls when you need an explicit run count or seed policy; keep the displayed account limit in view.View full size

Compare Variants

A Compare variants setup generates a batch. Before launch:

vary at least one of car count, capacity, or rated speed;
inspect the estimated number of cases;
keep the batch within the displayed limit.

The form shows the applicable calculation or simulation case limit before launch.

Launch and Monitor

When the panel says Ready, use the run action for the selected mode. VT Planner opens Results, where the run moves through Queued and Running before reaching a final status.

You can request cancellation from the active-run panel. The request is not instantaneous; completed work is finalized before the status changes.