Flash BRT is a bus rapid transit network in Montgomery County, Maryland with one corridor in operation and four future corridors under development.^[2] It is part of Montgomery County's Ride On bus system.

Currently the only corridor in operation, Flash BRT service runs in two routes along U.S. 29, both beginning at the Silver Spring Metrorail station and extending northeast. The Blue route makes six total stops, ending at the Burtonsville park and ride. The Orange route makes eleven total stops, ending at the Briggs Chaney park and ride.

The line opened on October 14, 2020, replacing the previous Ride On Route 129.^[3] Buses drive along the shoulder of U.S. 29 along the northern end of the route, with the remainder of the service using mixed-traffic roadways. Buses receive signal priority at some intersections.^[1]

Howard County has studied the possibility of extending the Flash line on the 29 corridor from Burtonsville to Maryland Route 99 in Ellicott City.^[4]

Station Name	Location	Connections	Facilities
Silver Spring	Bus Bay 229 8400 Colesville Road Silver Spring, MD 20910	Washington Metro Red Line MARC Train: Brunswick Line Purple Line (future) Metrobus: 70, 79, F4, J1, J2, J4, Q1, Q2, Q4, S2, S9, Y2, Y7, Y8, Z2, Z6, Z7, Z8, Z11 Ride On: 1, 2, 4, 5, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 28 MTA Maryland Bus: 915, 929 Shuttle-UM: 111 Peter Pan Bus	Transit center (existing) Capital Bikeshare
Fenton Street	Colesville Road & Fenton Street Silver Spring, MD 20910	Metrobus: F4, Z2, Z6, Z7, Z8, Z11 Ride On: 8, 9, 12, 13, 14, 16, 17, 20, 21, 22, 28 MTA Maryland Bus: 305, 315, 325	Capital Bikeshare
Four Corners	Northbound: Colesville Road & Lanark Way Southbound: Colesville Road & University Boulevard Silver Spring, MD 20901	Metrobus: C2, C4, Z2, Z6, Z8 Ride On: 9, 19, 21
Burnt Mills	Burnt Mills Shopping Center Silver Spring, MD 20901	Metrobus: Z2, Z6, Z8, Z11 Ride On: 21, 22	Capital Bikeshare
Oak Leaf Drive	Northbound: Lockwood Drive & Northwest Drive Southbound: Lockwood Drive & Oak Leaf Drive Silver Spring, MD 20901	Metrobus: Z2, Z6, Z8	Capital Bikeshare
FDA	Northwest Loop Road White Oak, MD 20903	Metrobus: C8, K9 MTA Maryland Bus: 203, 204
White Oak Transit Center	Lockwood Drive north of New Hampshire Avenue White Oak, MD 20904	Metrobus: C8, K6, Z6, Z8 Ride On: 10	Capital Bikeshare
April Lane	Stewart Lane & April Lane White Oak, MD 20904	Metrobus: Z6, Z8 Ride On: 10	Capital Bikeshare
Tech Road	Columbia Pike & Tech Road Silver Spring, MD 20904	Metrobus: Z6, Z7, Z8 Ride On: 10	130 parking spaces
Castle Boulevard	Castle Boulevard & Castle Ridge Circle Silver Spring, MD 20904	Metrobus: Z6, Z8, Z11	Capital Bikeshare
Briggs Chaney	Gateshed Manor Way & Briggs Chaney Road Silver Spring, MD 20904	Metrobus: Z6, Z8, Z11 Ride On: 21, 39	Capital Bikeshare 240 parking spaces Public restrooms
Burtonsville	National Drive & US 29 Burtonsville, MD 20866	Metrobus: Z6, Z7, Z11 MTA Maryland Bus: 201, 202, 203, 305, 315	Bus loop/drop off 500 parking spaces

Scheduled to open circa 2028, the Viers Mill corridor is planned to run along Veirs Mill Road between Wheaton Metrorail station and Rockville Metrorail station. The initial plan includes 11 stations, with a possible future extension to Montgomery College.^[5]

Scheduled to open circa 2029, the 355 corridor is planned to begin at Bethesda Metrorail station and run northwest along Maryland Route 355 through Rockville, Gaithersburg, Germantown, and Clarksburg.^[6]

This proposed route would run from North Bethesda Metro station to Montgomery Mall. Early planning work is under way as of 2025 but no opening date has yet been announced.^[7]

This proposed route would run along New Hampshire Avenue between as yet undetermined end stations near the DC line and Colesville. Early planning work is under way as of 2025 but no opening date has yet been announced.^[8]

The Montgomery Country Department of Transportation purchased 16 Nova Bus LFS articulated buses for the U.S. 29 line, which is based out of the Gaithersburg Garage. These buses can fit up to 80 passengers and feature level boarding, onboard bike racks, and an automatic wheelchair securement system.^[9] The buses are also equipped with a pedestrian sensor, which alerts the driver when people are passing in front of the bus. As with other Ride On buses, each bus also features a WiFi hotspot. Passengers can board or exit the bus through any of its three doors.

There are approximately 45 stations proposed across the entire future network, with 12 stations currently operating on the US 29 routes. Each station includes a canopy, a seating area, and a fare payment machine that accepts SmarTrip cards along with traditional forms of payment, and a passenger information system that displays when the next bus is coming and a blue pylon mounted above the canopy that flashes when a bus is about to arrive.^{[citation needed]}