Editing Speed limit (section)

===Minimum speed limits===
Some roads also have minimum speed limits, usually where slow speeds can impede traffic flow or be dangerous.<ref>{{cite book|last=Haney|first=James E.|title=The relationships between speed, speed limits, and motor vehicle accidents. An annotated bibliography|year=1974}}</ref> The use of minimum speed limits is not as common as maximum speed limits, since the risks of speed are less common at lower speeds.<ref name="racfoundation" /> In some jurisdictions, laws requiring a minimum speed are primarily centered around red-light districts or similar areas, where they may colloquially be referred to as ''kerb crawling laws''.<ref>Hubbard, Phil. "Out of touch and out of time? The contemporary policing of sex work." Sex work now. Willan, 2013. 22-53.</ref>