B100 (New York City bus)

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b100
Mill Basin-Midwood Line Quentin Road/Fillmore Avenue Line
A 2011 C40LF (515) on the Mill Basin-bound B100 at Fillmore Avenue/Madison Place in January 2019
Overview
System	MTA Regional Bus Operations
Operator	MTA Bus Company
Garage	Spring Creek Depot
Vehicle	New Flyer C40LF CNG
Began service	February 3, 1960
Route
Locale	Brooklyn, New York, U.S.
Communities served	Midwood, Marine Park, Flatlands, Mill Basin
Start	Mill Basin - National Drive & Mill Avenue (last drop-off) 56th Drive & Strickland Avenue (first pick-up)
Via	Quentin Road, Fillmore Avenue, East 66th Street
End	Midwood - East 16th Street and Quentin Road at Kings Highway ( B  ​ Q  trains)
Length	4.3 miles (6.9 km)
Other routes	BM1 Mill Basin/Midtown/Downtown
Service
Operates	5:00 AM - 1:00 AM
Annual patronage	990,139 (2023)[1]
Transfers	Yes
Timetable	B100
Route map ← B84  {{{system_nav}}}  B103 →

The B100 is a bus route in the New York City borough of Brooklyn. Originally operated by Command Bus Company, the bus route is now operated by MTA Bus Company, running between Midwood and Mill Basin.

The B100 bus route first starts at East 16th Street and Quentin Road near the Kings Highway station through a loop. Then it turns east onto Quentin Road. By the end of the intersection, it continues southeast through Gerritsen Avenue until it merges northeast via Filmore Avenue. After that, slightly turning to Avenue T, Mill Avenue, and Avenue U. Lastly, it turns down south spirally, and ending through a loop at National Drive and Mill Avenue during a drop-off and 56th Drive and Strickland Avenue during a pick-up.^[2][3]

It began on February 3, 1960 by Pioneer Bus Company. It was extended from Bassett Avenue to 56th Drive (then called McMullen Drive) in August 1960.

It was later operated by Command Bus Company starting October 22, 1979, due to a long strike at Pioneer Bus Company.

On December 5, 2005, the MTA Bus Company took over the routes from Command Bus Company, including the B100 bus.

On December 1, 2022, the MTA released a draft redesign of the Brooklyn bus network. As part of the redesign, the B100 service will be rerouted to use Avenue R instead of Quentin Road, replacing the B2, which will be eliminated.^{[4] [5]} Every bus on the route has been equipped with infoTransit display and audio system, though buses with a screen on the wall do not show subway transfers e.g. BMT Brighton Line.

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