Optimization of gravel road blading

Abstract

Blading maintenance of gravel roads is important to ensure that the functional performance of the road is optimal and that vehicle operating costs are minimized. In order to optimize the blading cycles, a system is required to monitor the functional performance of the road and inform the blading need. This system should preferably be low-cost and simple to operate, as the budgets available for such maintenance is typically low, and the condition needs to be monitored frequently because of the relatively quick deterioration in the functional performance of these roads through factors such as corrugation development. A method is described where the monitoring of the functional performance of gravel roads can be done at a regular frequency at no additional cost to the road owner. The effect of blading maintenance decisions taken based on the use of this system on a small gravel road network is illustrated. The optimization leads to fewer blading requirements, as only the sections where functional performance was inadequate were maintained, and in the long term, the condition of the road improved through regular appropriate blading.