The D.C. Department of Public Works cut their 15-year-old street sweeping routes nearly in half by using RouteSmart to revamp their routing process, increase service and improve environmental impact.
The Washington, D.C. Department of Public Works (DCDPW) wanted to streamline all 90 of its 15-year-old, manually created street-sweeping routes to improve service and increase operational efficiency. Existing routes:
- Varied in shape size and length
- Looped back in on themselves
- Were non-contiguous, leaving gaps in service throughout the city
Existing street sweeping service data was integrated with RouteSmart for ArcGIS software to establish baseline routing calculations from which to generate new routes. RouteSmart's route balancing and sequencing solvers were then utilized by DCDPW staff to create new routes that met goals for both productivity and safety. After field validating the software routing results with an actual drive-through, further adjustments were made to accommodate for local area knowledge of the crews and real world operational constraints such as traffic lights and congestion factors that were not initially modeled in the City's GIS data.
Working with RouteSmart software and their newly planned routes, DCDPW realized benefits almost immediately. RouteSmart software enabled the District to reduce the number of routes from 90 to 54, which enabled the District to serve more of the territory with less equipment and staff costs. DCDPW was also able to utilize street sweeping near the city’s waterfront to improve storm water quality and meet National Pollutant Discharge Elimination System (NPDES) permit program standards.