Editing Reuleaux triangle (section)

=== Signs and logos ===
The shield shapes used for many signs and corporate logos feature rounded triangles. However, only some of these are Reuleaux triangles.

The corporate logo of [[Petrofina]] (Fina), a Belgian oil company with major operations in Europe, North America and Africa, used a Reuleaux triangle with the Fina name from 1950 until Petrofina's merger with ''Total S.A.'' (today [[TotalEnergies]]) in 2000.<ref>{{citation|title=Interesting Stuff: Curves of Constant Width|first=Sam|last=Gwillian|url=http://newportcityradio.org/culture/interesting-stuff-curves-of-constant-width/all-pages|archive-url=https://archive.today/20160616012426/http://newportcityradio.org/culture/interesting-stuff-curves-of-constant-width/all-pages|url-status=dead|archive-date=June 16, 2016|publisher=Newport City Radio|date=May 16, 2015}}</ref><ref>{{citation|title=Fina Logo History: from Petrofina to Fina|url=http://www.total.com/en/about-total/group-presentation/group-history/fina-logo-history-922651.html|work=Total: Group Presentation|publisher=Total S.A.|access-date=31 October 2015|archive-url=https://web.archive.org/web/20121226182719/http://www.total.com/en/about-total/group-presentation/group-history/fina-logo-history-922651.html|archive-date=December 26, 2012}}.</ref>
Another corporate logo framed in the Reuleaux triangle, the south-pointing [[compass]] of [[Bavaria Brewery (Netherlands)|Bavaria Brewery]], was part of a makeover by design company Total Identity that won the SAN 2010 Advertiser of the Year award.<ref>{{citation|url=https://totalidentity.com/global-bavaria|title=Global: Bavaria, Fundamental Rebranding Operation at Bavaria|website=Total Identity|access-date=2015-06-27|url-status=unfit|archive-url=https://web.archive.org/web/20150630071933/https://totalidentity.com/global-Bavaria|archive-date=2015-06-30}}</ref> The Reuleaux triangle is also used in the logo of [[Colorado School of Mines]].<ref>{{citation|title=M-blems: Explaining the logo|url=http://magazine.mines.edu/BackIssues/PDF_Archives/vol_92_num_2.pdf|page=29|first=Roland B.|last=Fisher|volume=92|number=2|date=Spring 2002|magazine=Mines: The Magazine of Colorado School of Mines|archive-url=https://web.archive.org/web/20100710165916/http://magazine.mines.edu/BackIssues/PDF_Archives/vol_92_num_2.pdf|archive-date=2010-07-10|url-status=usurped}}</ref>

In the United States, the [[National Trails System]] and [[United States Bicycle Route System]] both mark routes with Reuleaux triangles on signage.<ref>{{citation|title=Information: MUTCD — Interim Approval for the Optional Use of an Alternative Design for the U.S. Bicycle Route (M1-9) Sign (IA-15)|work=Manual on Uniform Traffic Control Devices for Streets and Highways: Resources|first=Jeffrey A.|last=Lindley|date=June 1, 2012|access-date=August 20, 2018|url=https://mutcd.fhwa.dot.gov/resources/interim_approval/ia15/|publisher=US Department of Transportation, Federal Highway Administration}}</ref>