Walsall Council was looking to maximise its winter maintenance budget by reducing the number of winter gritting routes. It approached KaarbonTech to replan its routes for the greatest productivity.
Using GIS data, KaarbonTech analysed the routes driven on each gritting run across the borough. With each route taking just two and a half hours, this provided sufficient man hours to increase the time on each run and remove one gritter and driver from the operational plan. Polygon shape-files were created for all roads of importance across the borough displaying the topography to ensure all priority and high-risk roads were included in the schedule. Consideration was given to any network constraints such as one-way and narrow roads and turning restrictions using OS data. The client requested that some additional, previously excluded, routes were added to the new route plan. A new route was proposed for each gritter – each route operating over an additional hour and a half.
The gritting routes were optimised for maximum performance and associated cost savings realised. As a result of the new improved plan, one route was deleted, meaning one fewer gritter in use with a significant saving in labour and vehicle maintenance.