Flash BRT

The service runs from the Silver Spring Metrorail station along U.S. 29, before ending at the Burtonsville Park and Ride. Buses drive along the shoulder at the northern end of the route, with the remainder of the service using mixed-traffic roadways. Buses also receive signal priority at some intersections.[1] Howard County has also studied the possibility of extending the BRT line from Burtonsville to Maryland Route 99 in Ellicott City.[3] The line opened on October 14, 2020 replacing route 129.[4]

Once complete, this line will begin at Bethesda Station and run along MD 355 through the cities of Rockville and Gaithersburg before terminating at the Clarksburg Outlets shopping mall.[5]

Currently in the preliminary design phase, this line will run from Wheaton station to Rockville station and connect to the MD 355 line. The initial plan includes 11 stations, with a possible future extension to Montgomery College along that portion of the MD 355 line's route.[6]

Route Z11 operated during the weekday peak-hours between Silver Spring station and Burtonsville Crossing Park & Ride Lot via Briggs Chaney Park & Ride Lot, Castle Boulevard, and Greencastle Park & Ride Lot via Columbia Pike, Castle Boulevard, Colesville Road, Briggs Chaney Road, Ballinger Drive, and Greencastle Road. The Z11 was an express route to supplement routes Z6 and Z8 during the weekday peak-hours operating express along Columbia Pike while routes Z6 and Z8 operate in Calverton (Z6) and Old Columbia Pike (Z8). The route was suspended during WMATA's reduced service as response to the COVID-19 pandemic on March 18, 2020[7] and did not return on August 23, 2020.[8] Route Z11 operated out of Montgomery division prior to the suspension.

Restrictions for route Z11 went as follows:

• Southbound: Customers may not get on or off between Briggs Chaney Road & Castle Boulevard and Colesville Road & Spring Street except at Oak Leaf Drive and Prelude Drive. AM trips do not stop at University Blvd.
• Northbound: Customers may not get on or off between Colesville Road & Spring Street and Briggs Chaney Road & Outlet Drive, except at Prelude Drive & Oak Leaf Drive, but can get on and off at University Boulevard.

When the Paul S. Sarbanes Transit Center at Silver Spring station opened, routes Z11 and Z13 were rerouted from its terminus along Wayne Avenue to the new transit center. The Z11, and Z13 were assigned to Bus Bay 108 on level 1.[10][11]

In 2015, WMATA proposed to combine routes Z9 and Z11 into one route to form a new route Z11. The Z11 would discontinue service along Columbia Pike and instead operate along Old Columbia Pike. Also, the route would be extended to the Burtonsville Crossing Park & Ride Lot via Columbia Pike. This would simplify the express bus along Columbia Pike and the route changes were recommended by the Z Line Metrobus Study from 2014.[12][13]

On March 27, 2016, route Z11 was extended to the Burtonsville Crossing Park & Ride Lot via Blackburn Road in order to replace routes Z9 and Z29 which were renamed to routes Z7. Route Z11 will operate every 10–15 minutes during the weekday peak-hours with the final trips operating every 20–30 minutes. There were no changes to bus stop locations along Columbia Pike between White Oak and Silver Spring. Buses were also reassigned to Bus Bay 115 on the level 1 at the Paul S. Sarbanes Transit Center in Silver Spring station.[14][15]

Route Z13 was also discontinued and replaced by the Z11 as the route became redundant to the Z11. The line was renamed to the Burtonsville–Greencastle Express Line as a result of the changes.[14]

In 2016, WMATA proposed to eliminate the Z11 segment between Burtonsville Crossing Park & Ride and Greencastle Park & Ride in order to reduce costs. Service frequency between Greencastle Park & Ride and 1400 Castle Boulevard will be also reduced to operate approximately every 20 minutes. Performance measures goes as follows:[16]

• The segment of Route Z11 proposed for elimination has a total of 2 boardings northbound (0.15 per trip) and 32 boardings southbound (2.65 per trip) according to automatic passenger counter data, which are both below the WMATA standard of 10.7. The segment proposed for elimination has a total of 49 offs northbound (3.03 per trip) and 2 offs southbound (0.15) automatic passenger counter data, which are both below the WMATA standard of 10.7.
• The segment of the Route Z11 proposed for reduced frequency has a total of 18 boardings northbound (1.13 per trip) and 178 boardings southbound (9.37) automatic passenger counter data; which are both below the WMATA standard of 10.7. The segment proposed for reduced frequency has a total of 83 offs northbound (5.17 per trip) and 9 offs southbound (0.46 per trip) automatic passenger counter data, which are both below the WMATA standard of 10.7.

In 2019, WMATA proposed to eliminate the Z11 in preparation for the new Ride On Flash BRT service which is expected to be in service in 2020. The Z11 averages 35 trips per day and averages 24 riders per trip.[17][18][19]

Montgomery County expressed concerns over the proposed Montgomery County route changes.[20] According to Council Vice President Tom Hucker, residents impact 65,000 residents of the Maryland county.[21] Residents urged WMATA to not cut service as it will cause a lack of transportation towards the residents.[22]

At least 30 Montgomery County leaders called on WMATA not to cut Metrobus routes in the region, saying it will "disproportionately affect" students, seniors, and service workers with no other source of transportation. The letter's signatories include state senators Craig Zucker, Susan Lee, and Cheryl Kagan, Maryland State Delegates Marc Korman, Sara Love, and Julie Palakovich Carr and all nine members of the county council. In a letter to Metro Chairman Paul Smedberg, members of the Montgomery County Council and state delegation said they opposed the cuts, which are part of WMATA's proposed FY 2021 operating budget, and urged the agency to prioritize "maintaining frequent and reliable service." They also quote;[23]

The Metrobus routes currently recommended for service reductions, including the Q, J, L and Z bus lines, provide transportation for many of our most transit-dependent residents," the lawmakers wrote. "Service reductions will disproportionately affect students commuting to Montgomery College, seniors running daily errands and service workers accessing jobs. Roughly 65,000 Montgomery riders use Metrobus on a daily basis, and for many these bus routes are their only source of transportation.

The 35 lawmakers ended the letter by saying cuts to Metrobus service for Montgomery County would counter their "regional goals of reducing traffic congestion and greenhouse gas emissions."

On April 2, 2020, the FY2021 budget was released for WMATA. In about 133 votes from customer feedback for the Z11 changes, 73% of votes were against the changes for Z11 with 15% of votes in favor with the remaining 12% uncertain. Many residents were concern over transfers and travel time.[24] As of the revised proposal released in late March 2020, WMATA still has the Z11 elimination under consideration.[25]

The proposal was brought back up again with the opening of Flash BRT in October 2020 and Metro's reduced service since August 2020. Route Z11 has not operated since March 18, 2020 due to Metro's response to the COVID-19 pandemic.[26]