Demand changes by time
A curb may serve deliveries in the morning and passenger activity later.
Allocation creates trade-offs
Giving space to one function usually reduces space for another.
Rules need enforcement and design
Signs alone may not create the intended behaviour.
Digital management has limits
Reservation or sensor systems can help, but physical street design and equitable access still matter.
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.