All explainers · Agent-based simulation, explained
From zonal flows to individual journeys
Animation paused (reduced motion). Press play to watch.
In one sentence
This makes it possible to inspect how a corridor and its feeder network actually work.
Why it matters
A strategic model sees zones, flows between zones and access to transit through connectors — one static picture per period of the day. An agent-based simulation unpacks the same zone into people who walk to actual stops, wait, board a specific vehicle and transfer at the hub, in continuous time.
Agent-based simulation is usually explained with equations or with a screenshot of a running model. Neither shows why a planner should care. These explainers show the mechanism itself — one person, one day, one score — so that the results on a dashboard stop being a black box.
Sources
- Schematic illustration; values are illustrative
What you see
- 00.0Zones and flows
- 03.0One static picture per period
- 07.5The same zone as people
- 12.0Buses, waiting, transfers in continuous time
- 19.0Takeaway
Use this explainer
MP4 (1800×720) · GIF (1200 px) · Poster (PNG)
Embed: <iframe src="https://www.replan.city/explains/embed/zonal-flows-to-individual-journeys.html?lang=en" width="900" height="360" style="border:0;max-width:100%;aspect-ratio:5/2" loading="lazy" title="From zonal flows to individual journeys"></iframe>
Paste into any page; the explainer plays as live SVG (no video file).
Licence: CC BY 4.0 — reuse freely with the line “Replan GmbH · replan.city/explains”. The Replan mark in the corner stays.
See it on your own network
Book a demoRelated explainers

Individual agents: groups and single persons
Any indicator can be filtered by group, by area or by time of day, down to a single person.

From a diary record to a simulated day
The strategic model supplies who, what, which zone and which period; the simulation adds exact place, exact time and consistent tours.

One traveller, two modelling views
Not a different answer to the strategic question — a visible journey behind the total.
