This tool does the sums of the bus lane proposal on the blocks you pick. Pick the plan’s 12 streets and you get its figures.
- BlocksEach shaded line is a piece of street, about a fifth of a mile, that buses use with no lane within 15 m. It holds the time all the routes on it spend there on a weekday, 7 am to 7 pm, from the MTA’s bus speeds between timing stops (). A bus spends the same time on each foot of its stretch. Where several routes share a block, one lane helps all of them. Only stretches whose two stops are on one street are counted, so blocks near a turn are missing.
- What a lane doesNew lanes opened in 2023 to 2025 made buses 3.3% faster than matched stretches without a lane (95% range 1.9 to 4.7%). A gain of g% cuts bus time by g ÷ (100 + g). The ranges on this page use that interval.
- Riders and dollarsBus-hours saved × 14 riders aboard a bus (National Transit Database) = rider-hours. × 250 weekdays × $19.60 an hour (USDOT’s value of local travel time) = dollars a year. The range counts only the lane effect, not the rider count.
- Lane-milesStreet length with no lane, in each direction buses run. Routes on the same block count once.
Caveats: the effect is an average from lanes already built; a given street can do better or worse. Weekdays and buses only. It leaves out cost, lost curb space, and what a faster bus saves the MTA. The 12 worst streets are the ones losing the most bus time with under half their route on a lane. Blocks are our own cut of the MTA’s stretches, so a block can start mid-intersection.