MEASURE / NYC An ever-changing New York, in its own data.

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39 Flatbush Ave RAPID

6.21 mph baseline, weighted so busier routes count more (the pre-plan year)
6.55 mph on the corridor's own segments (segment-clipped baseline)
−6.2% July 2026 vs July 2025 (6.56 to 6.15 mph). Pre-plan months on these routes swung −9.9% to −1.3%. Too soon to call.
22 of 50 by baseline speed (1 = slowest)
10,706 weekday riders
Brooklyn borough

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Routes on this corridor

RouteBaseline mph Riders/dayFull-run time (derived) Trend
B41 6.21 10,706 107.3 min full run

Full-run time is derived: route length divided by average speed. Rider counts are fare-paid boardings, weekdays 7am–7pm, on tracked local routes. The plan's own rider figures count all riders, all day, so they run higher.

What the plan says happens here

How this corridor was mapped to routes

The card describes center-running lanes from Livingston Street to Grand Army Plaza serving six routes it does not name. The B41 is the Flatbush Avenue spine and is tracked now; the set will expand when DOT names the rest. (Verified July 11, 2026; corrections welcome.)