Demand-responsive transport

Demand-responsive transport (DRT), also known as demand-responsive transit, demand-responsive service, Dial-a-Ride transit (sometimes DART), flexible transport services, Microtransit, Non-Emergency Medical Transport (NEMT), Carpool or On-demand bus service is a form of shared private or quasi-public transport for groups traveling where vehicles alter their routes each journey based on particular transport demand without using a fixed route or timetabled journeys. These vehicles typically pick-up and drop-off passengers in locations according to passengers needs and can include taxis, buses or other vehicles.

Source: Wikipedia — Demand-responsive transport (CC BY-SA 4.0)