The Harbor Transitway is an 11 mi shared-use bus corridor (transitway) and high-occupany toll roadway that runs in the median of Interstate 110 (Harbor Freeway) in Southern California.
 The main bus service operating on the busway is the Metro Silver Line which was introduced on December 13, 2009.
 The Metro Silver Line bus rapid transit line runs on the Harbor Transitway from Harbor Gateway Transit Center to Downtown Los Angeles and continues to El Monte Bus Station.
 The line operates daily with frequent service.
 In addition to Metro Silver Line, other Metro bus and municipal bus routes also operate on the Harbor Transitway.
 They include Metro Express lines 442, 460 and 550, Torrance Transit line 4, Gardena Transit line 1X and Orange County Transportation Authority lines 701, 721.
 Metro Express lines 442 and 550 operate only during weekdays peak hours.
 Metro Line 442 operates peak a.m. northbound only and southbound p.m. only.
 Torrance Transit line 4, Gardena Transit line 1X, and Orange County Transportation Authority: 701, 721 operate only during weekday peak hours.
 Metro Express line 460 operates daily along with the Metro Silver Line.
 Busway bus lines originate from Downtown Los Angeles and El Monte, with final destinations in Disneyland, and Disney California Adventure Park located in Anaheim, Knott's Berry Farm, Artesia, Fullerton, Gardena, Hawthorne, Huntington Beach, San Pedro and Torrance.
The Portland Transit Mall is a set of public transit corridors through the center of downtown Portland, Oregon, United States.
 More specifically, it is a pair of one-way streets—one for northbound traffic, the other for southbound—along which two of the three lanes are restricted to transit vehicles only.
 The transit mall opened in 1977 and until 2009, buses were the only transit vehicles using it, but in 2009 light rail was added.
 Between 2007 and 2009 the mall was rebuilt and extended southwards, and it reopened for buses on May 24, 2009.
 Light rail service on the mall was introduced on August 30, 2009, with the shifting of the MAX Yellow Line to the mall from its original routing in downtown, and a second MAX line, the Green Line, began serving the mall on September 12, 2009.
 From fall 2009 to July 2014, the Portland Vintage Trolley also served the transit mall on certain Sundays.
 Although the mall's transit stops are mainly served by TriMet vehicles, on weekdays buses on express routes operated by C-Tran and the Columbia County Rider also serve the mall.
 In September 2015, the new MAX Orange Line replaced the Yellow Line service in the southbound direction on the mall, on 5th Avenue, with the Orange and Yellow lines being through-routed at all times.
The A Line, previously known as the Snelling Avenue Bus Rapid Transitway, is a bus rapid transit line in Twin Cities in Minnesota operated by Metro Transit.
 The A Line operates on the Snelling Avenue corridor, connecting to the Blue and Green light rail lines, as well as serving Hamline University, Macalester College, Highland Village, Rosedale Center, Har Mar Mall, Minnehaha Park and the Midway area.
Rosedale Center, commonly known just as Rosedale, is a shopping center in Roseville, Minnesota.
 The mall is considered a regional powerhouse as a shopping destination; surrounded by suburbs and close to major highways, it serves a trade area population almost 2 million people, and boasts 12 million visitors a year.
The Manila Light Rail Transit System Line 4 (LRT-4) is a proposed rapid transit line to be built in Metro Manila and Rizal in the Philippines.
 Also known as the "Ortigas–Taytay LRT Line", LRT-4 is planned to link suburban Taytay in Rizal to the Ortigas Center business district in eastern Metro Manila.
 When completed, it will be the second rapid transit line serving the province of Rizal after the LRT-2 (Blue Line) which will soon be extended to Masinag in Antipolo.
The Manila Light Rail Transit System Line 2, also known as LRT Line 2, LRT-2, or Megatren, is a rapid transit line in Metro Manila in the Philippines, generally running in an east-west direction along the Radial Road 6 and a portion of the Circumferential Road 1.
 Although operated by the Light Rail Transit Authority, resulting in its being called "LRT-2", it is actually a heavy rail, rapid transit system owing to its use of electric multiple units instead of the light rail vehicles used in earlier lines and is the only line utilizing such type of system in the country.
 Envisioned in the 1970s as part of the Metropolitan Manila Strategic Mass Rail Transit Development Plan, the eleven-station, 13.8 km line was the third rapid transit line to be built in Metro Manila when it started operations in 2003.
 It is operated by the Light Rail Transit Authority (LRTA), a government-owned and controlled corporation attached to the Department of Transportation (DOTr) under an official development assistance scheme.
The Rennes Metro (French: "Métro de Rennes" ) rapid transit line serves the city of Rennes in Brittany, France.
Orange Line is an under-construction rapid transit line being built as part of the Lahore Metro, in Lahore, Pakistan.
 The Orange Line will be Pakistan's first modern rail-based mass rapid transit transit system, and will be a fully automated and driverless system.
 It will be Lahore's second rapid transit line, after the Lahore Metrobus, which was completed in 2013.
The Sognsvann Line (Norwegian: "Sognsvannsbanen" ) is a rapid transit line on the Oslo Metro of Norway.
 It branches from the Common Tunnel at Majorstuen and runs 6.0 km to Sognsvann.
 After Ullevål stadion, the Ring Line branches off.
 The Sognsvann Line serves the northwestern and northern neighborhoods of Oslo, mostly within the borough of Nordre Aker.
 The line is owned and maintained by Kollektivtransportproduksjon and has nine stations.
 The western end of line 5 serves the entire line.
 Line 4 and the eastern end of line 5 serve the southern part of the line up to Ullevål stadion before branching off and continuing along the Ring Line.
 This gives an average five-minute headway on the southern part and an average fifteen-minute headway on the northern part of the line.
The MRT Purple line (Thai: รถไฟฟ้ามหานคร สายสีม่วง ), officially the MRT Chalong Ratchadham line (Thai: รถไฟฟ้ามหานคร สายฉลองรัชธรรม ), is a rapid transit line of Bangkok's Metropolitan Rapid Transit system for the Mass Rapid Transit Authority of Thailand (MRTA) in the Bangkok Metropolitan Region and Nonthaburi Province.
 It opened for service on 6 August 2016 and is the second MRT line operated by BEM (formerly BMCL) and the city's fifth rapid transit line, following the Sukhumvit Line, Silom Line, MRT Blue Line, and Airport Rail Link.

Question: What transit line serves the mall that has 12 million visitors a year?
Answer: The A Line