Municipalities and transit planning
Municipalities are usually not the entities planning and scheduling transit systems. Those tasks are typically performed by separate transit agencies. There are some transit agencies such as OC Transpo in Ottawa, the Charlotte Area Transit System and Detroit's bus system which are city departments, but it is much more common, particularly in larger cities, for transit agencies to be separate from municipalities, in part because they serve areas comprised of many different municipalities.
In many cases, 30-minute intervals between buses or streetcars may have nothing to do with municipal or transit agency planning and everything to do with refusal of local or state governments invest sufficiently in transit to provide higher frequencies of service.
