Denver police are relegating food trucks in Lower Downtown to “destination zones” they created for weekend, late-night business after prohibiting the trucks from operating in certain areas to reduce violent crime, DPD said Friday. The four zones permitted by the Denver Department of Transportation and Infrastructure for food truck operations are 18th Street between Larimer and Market streets; Lawrence Street between 20th and 21st streets; Market Street between 17th and 18th streets and 21st Street between Blake and Market streets. The Market Street between 17th and 18th streets location is only being used this weekend because of an upcoming construction project, police said.