My favorite coalition of grumps have been the residents of Takoma Park, Maryland, who actually spent time falsifying accident reports to Waze in order to prompt the algorithm to shift the route elsewhere. But all of the actions, either infrastructure changes performed by the city or hacks by community groups, have the same intended purpose: “I will make driving through our neighborhoods more difficult, so you will not use the street,” says Jeff Ban, a professor of civil and environmental engineering at the University of Wisconsin.