Editing San Francisco (section)

====Freeways and roads====
{{Further|List of streets in San Francisco}}
[[File:Bay Bridge 2022.jpg|thumb|left|The [[San Francisco–Oakland Bay Bridge|Bay Bridge]] connects the city to [[Oakland, California|Oakland]] and the East Bay.]]
In 2014, only 41.3% of residents commuted by driving alone or carpooling in private vehicles in San Francisco, a decline from 48.6% in 2000.<ref name=":5" /> There are 1,088 miles of streets in San Francisco with 946 miles of these streets being surface streets, and 59 miles of freeways.<ref name=":5">{{Cite web|date=2015|title=SFMTA Transportation Fact Sheet|url=https://www.sfmta.com/sites/default/files/reports/2016/2015%20SFMTA%20Transportation%20Factsheet.pdf}}</ref> Due to its unique geography, and the [[Highway revolts in the United States#San Francisco|freeway revolts]] of the late 1950s,<ref name="freeway">{{cite news
|last = Gordon |first = Rachel
|title = Boulevard of dreams, the premiere
|work=San Francisco Chronicle |page = B-1

|date = September 8, 2005
|url = http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2005/09/08/BAGBFEJVE21.DTL
|access-date =June 16, 2008
}}</ref>
[[Interstate 80 in California|Interstate 80]] begins at the approach to the [[San Francisco–Oakland Bay Bridge|Bay Bridge]] and is the only direct automobile link to the East Bay. [[U.S. Route 101 in California|U.S. Route 101]] connects to the western terminus of Interstate 80 and provides access to the south of the city along San Francisco Bay toward [[Silicon Valley]]. Northward, the routing for U.S. 101 uses arterial streets to connect to the [[Golden Gate Bridge]], the only direct automobile link to [[Marin County]] and the North Bay.

As part of the retrofitting of the Golden Gate Bridge and installation of a suicide barrier, starting in 2019 the railings on the west side of the pedestrian walkway were replaced with thinner, more flexible [[slat (aircraft)|slats]] in order to improve the bridge's aerodynamic tolerance of high wind to {{convert|100|mph|km/h|0|abbr=on}}. Starting in June 2020, reports were received of a loud hum produced by the new railing slats, heard across the city when a strong west wind was blowing.<ref name="bridge harmonic resonance issues">{{cite news |first=Eric |last=Ting |url=https://www.sfgate.com/bayarea/article/Golden-Gate-Bridge-noise-humming-why-wind-sound-15321767.php |title=Why the Golden Gate Bridge made strange noises with the wind Friday |newspaper=San Francisco Chronicle |date=June 6, 2020 |access-date=July 5, 2020 |archive-date=July 5, 2020 |archive-url=https://web.archive.org/web/20200705073455/https://www.sfgate.com/bayarea/article/Golden-Gate-Bridge-noise-humming-why-wind-sound-15321767.php |url-status=dead }}</ref>
[[File:Lombard Street 2020.jpg|thumb|upright|[[Lombard Street (San Francisco)|Lombard Street]] in [[Russian Hill, San Francisco|Russian Hill]] is famed as "the most crooked street in the world".]]
[[California State Route 1|State Route 1]] also enters San Francisco from the north via the Golden Gate Bridge and bisects the city as the [[19th Avenue (San Francisco)|19th Avenue]] arterial thoroughfare, joining with [[Interstate 280 (California)|Interstate 280]] at the city's southern border. Interstate 280 continues south from San Francisco, and also turns to the east along the southern edge of the city, terminating just south of the Bay Bridge in the [[South of Market (San Francisco)|South of Market]] neighborhood. After the [[1989 Loma Prieta earthquake]], city leaders demolished the [[Embarcadero Freeway]] and a portion of the [[Central Freeway]], converting them into street-level boulevards.<ref name="freeway" />

[[California State Route 35|State Route 35]] enters the city from the south as [[Skyline Boulevard]] and terminates at its intersection with Highway 1. [[California State Route 82|State Route 82]] enters San Francisco from the south as [[Mission Street]], and terminates shortly thereafter at its junction with 280. The western terminus of the historic transcontinental [[Lincoln Highway]], the first road across America, is in San Francisco's [[Lincoln Park (San Francisco)|Lincoln Park]].

===== Vision Zero =====
In 2014, San Francisco committed to [[Vision Zero]], with the goal of ending all traffic fatalities caused by motor vehicles within the city by 2024.<ref>{{cite news|last=Kwong|first=Jessica|date=February 19, 2014|title=SF takes step forward in education for pedestrians, cyclists and drivers|newspaper=San Francisco Examiner|url=http://www.sfexaminer.com/sanfrancisco/sf-takes-step-forward-in-education-for-pedestrians-cyclists-and-drivers/Content?oid=2708625|access-date=February 26, 2014|archive-date=February 26, 2014|archive-url=https://web.archive.org/web/20140226232558/http://www.sfexaminer.com/sanfrancisco/sf-takes-step-forward-in-education-for-pedestrians-cyclists-and-drivers/Content?oid=2708625|url-status=dead}}</ref> San Francisco's Vision Zero plan calls for investing in engineering, enforcement, and education, and focusing on dangerous intersections. In 2013, 25 people were killed by car and truck drivers while walking and biking in the city and 9 car drivers and passengers were killed in collisions. In 2019, 42 people were killed in traffic collisions in San Francisco.<ref>{{Cite web|date=2019|title=Vision Zero 2019 End of Year Traffic Fatality Report|url=https://www.visionzerosf.org/wp-content/uploads/2020/03/Vision-Zero-2019-End-of-Year-Traffic-Fatality-Report_final.pdf}}</ref>