Capacity arrives in increments
Treatment plants, substations and major roads are often expanded in large steps.
Local networks follow development
Streets and pipes can be extended as neighbourhoods are built.
Timing affects cost
Building major capacity too early can leave expensive assets underused; too late can constrain growth.
Staging creates dependencies
A later district may depend on infrastructure constructed through an earlier one.
Scope boundary. This page explains system relationships at a planning level. Real utility, transportation, emergency, structural, electrical, cybersecurity and public-safety decisions require local agencies and qualified professionals.