Editing Traffic calming (section)

=== North America ===
By 2017, San Francisco's Vision Zero program, which heavily features traffic calming, has reduced fatalities by 33%.<ref>{{cite web|url=https://visionzerosf.org/about/how-are-we-doing/|title=Vision Zero SF - How Are We Doing?|date=13 May 2015|access-date=29 October 2018|archive-date=19 January 2021|archive-url=https://web.archive.org/web/20210119024422/https://www.visionzerosf.org/about/how-are-we-doing/|url-status=live}}</ref>

A 2018 study found that traffic calming measures in Portland, Oregon reduced excessive speeds, reduced daily traffic volume by 16% and increased home prices by 1%.<ref>{{Cite journal|date=2018-11-13|title=Traffic calming and neighborhood livability: Evidence from housing prices in Portland|journal=Regional Science and Urban Economics|volume=74|pages=18–37|language=en|doi=10.1016/j.regsciurbeco.2018.11.004|issn=0166-0462|last1=Polloni|first1=Stefano|s2cid=157921339}}</ref>