Municipal regions and local effects
A city’s municipal region extends beyond its built-up streets. Regional bonuses and environmental effects make infrastructure placement a strategic decision.

What we know
Operations schematicConceptual
Deliveries and the town feedback loop
Passenger & cargo deliveriesEarn growth experience
City ratingsScale effectiveness
GrowthChanging town
New demandRevisit the network
How to approach the decision
Editorial planning advice based on the confirmed systems above.
- Inspect the region before siting a depot, industry or landmark.
- Compare the intended bonus with the affected city’s current constraints.
- Review the region after expanding transport infrastructure.
A mistake to avoid
Moving pollution outside the visible town buildings does not automatically remove it from the city’s rating.
What still needs live data
Exact numerical values, release-build menus and reproducible gameplay tests will be added only after verification.
Exact values and operating advice are added after testing against a recorded game build. Check the source date before relying on a number.
Put it to work
Open toolcity growth diagnostic
Use your own scenario values. No guessed TF3 presets.
Official sources
Tycoon dev blogSource verification: September 25, 2026. Evidence policy and source ledger.