ADA Paratransit Cost Calculator

A fixed bus route spreads its driver, vehicle, and fuel costs across every rider who boards along a scheduled path, while paratransit typically dedicates a vehicle and driver to picking up and dropping off one rider (or a small group) door-to-door with no fixed schedule -- there's no equivalent economy of scale. This is a well-documented pattern in transit finance literature: national paratransit costs commonly run several times higher per trip than fixed-route bus service.

It comes directly from 49 CFR 37.131(a)(1), the federal regulation implementing the ADA's complementary paratransit requirement: transit agencies that operate fixed-route bus or rail service must provide paratransit service within a corridor extending 3/4 mile on either side of each fixed route, or within a 3/4-mile radius of each rail station, to riders whose disability prevents them from using the fixed-route service.

Two of the four cost components -- vehicle depreciation and dispatch/ scheduling overhead -- are flat per trip regardless of distance, while only driver labor and fuel actually scale with Avg Trip Distance. That means a 16-mile trip doesn't cost twice as much as an 8-mile trip; the flat components get diluted as a share of the total as distance grows, so cost per mile actually falls with longer trips even as total Cost Per Trip rises.

No -- driver wage, fuel cost per mile, vehicle depreciation, and overhead are illustrative planning assumptions built into this calculator, not figures pulled from a specific transit agency's actual accounting. At this calculator's defaults, the resulting Cost Per Trip (about $27.53) comes in just below the commonly cited $30-80+ national range for paratransit; real agency costs vary by region, labor rates, service density, and vehicle fleet age, and this simplified model can land below, within, or above that range depending on the trip distance entered.

Yes -- Annual Cost multiplies Daily Operating Cost by 365, reflecting that ADA complementary paratransit generally must operate during the same days and hours as the fixed-route service it complements, which for most transit agencies includes every day the fixed-route system runs, not just weekdays.