Editing M Ocean View (section)

==== Subway proposal ====
<!--{{19th Avenue/M Ocean View Project|state=collapsed}}-->
The M Ocean View moves at only {{convert|8.5|to|9.5|mph}} during afternoon commute hours over a {{convert|2|mi|adj=on}} distance along 19th Avenue/[[California State Route 1|Highway 1]]. The slow speed is attributed to trains stopping at multiple busy street crossings.<ref name="19thAveTS">{{cite report |url=https://www.sfmta.com/sites/default/files/projects/19thAve_final_report.pdf |title=19th Avenue Transit Study |publisher=San Francisco County Transportation Authority |date=March 2014 |access-date=22 March 2016 |archive-url=https://web.archive.org/web/20150402061046/http://sfmta.com/sites/default/files/projects/19thAve_final_report.pdf |archive-date=2 April 2015 |url-status=live}}</ref> In addition, the majority of riders access 19th Avenue stops from the west side of 19th, since Stonestown Galleria, San Francisco State University and [[Parkmerced]] are all located west of 19th. In order to access the stops, which are located in the median of 19th Avenue, pedestrians cross three lanes of traffic and a turn lane. In San Francisco, 55% of severe and fatal pedestrian accidents occur on 7% of its street miles, which includes the 19th Avenue/Highway 1 corridor.<ref name="WalkFirst">{{cite report |url=http://www.sf-planning.org/ftp/files/Citywide/WalkFirst/WalkFirst_Final_Document_102711.pdf |title=WalkFirst: Improving Safety & Walking Conditions in San Francisco |date=October 2011 |publisher=San Francisco Department of Public Health |access-date=22 March 2016 |quote='''4.3 High-injury-density corridors''' – The identified corridors shown in blue in Map 3 represent 6.7% of San Francisco's street miles, and include 55% of all severe and fatal injuries and 51% of total pedestrian injuries in the five-year period.}}</ref> In response, the San Francisco County Transportation Authority published studies in 2010<ref name="19thAveCS">{{cite report |url=https://www.sfmta.com/sites/default/files/projects/19th_Ave_Corridor_Study.pdf  |title=19th Avenue Corridor Study |publisher=City and County of San Francisco |date=February 12, 2010 |access-date=25 September 2019}}</ref> and 2014 which explored options to facilitate pedestrian access and improve travel times.<ref name="19thAveTS" />

The full-subway option was chosen for further development and named the Muni Subway Expansion Project (MSXP).<ref>{{cite web |url=https://www.sfmta.com/projects/muni-subway-expansion-project |title=Muni Subway Expansion Project |date=5 June 2014 |publisher=San Francisco Municipal Transportation Agency |access-date=25 September 2019}}</ref> Under the preliminary concept for MSXP, the rail line would remain underground past West Portal station. K Ingleside would branch off from the underground line and surface on Junipero Serra Boulevard just south of Saint Francis Circle. M Ocean View will remain underground along the current right of way under West Portal Avenue and 19th Avenue, branching off at Holloway to Parkmerced. The underground line would continue with J Church service along 19th until surfacing just east of the intersection of 19th and Junipero Serra, then continuing on to Balboa Park via Randolph, Broad, and San Jose.<ref name=2016-plan>{{cite report |url=https://www.sfmta.com/sites/default/files/projects/2016/Station%202%20Rail.pdf |title=19th Avenue/M Ocean View Project: Subway Station Entrances {{!}} New, Upgraded & Removed Stations |date=February 2016 |publisher=San Francisco Municipal Transportation Agency |access-date=25 September 2019}}</ref>

The current West Portal station would most likely have to be redesigned as a two-level station with the K/M lines on the lower level and the L line on the upper level. New underground stations would be constructed at Saint Francis Circle (K/M lines), Winston Drive (M, serving Stonestown), Holloway (J/M, serving SF State), and Parkmerced (M). A potential infill station could be constructed at Ocean Avenue in Lakeside Village. Several existing surface stations would be removed; in most cases, they would be replaced by underground stations.<ref name=2016-plan /> The proposed full subway line would continue past Parkmerced with a long tail track; that tail track could be extended in the future to connect to the [[Daly City station|Daly City BART station]] via the M line. The total cost of the full subway line project was estimated at approximately $3 billion.<ref name="2016-plan" /><ref>{{Cite web |last=Mojadad |first=Ida |title=City proposes Muni M-line to run under Parkmerced, extend to Daly City BART |url=https://goldengatexpress.org/49147/latest/news/city-proposes-muni-m-line/ |access-date=2023-02-28 |website=Golden Gate Xpress}}</ref>