The use of aircraft tracking GPS data to develop models of the use of airtankers in forest fire management

Abstract

The Ontario Ministry of Natural Resources and Forestry uses amphibious airtankers to help control forest fires in the province of Ontario. Their airtankers are based at airports from which they are dispatched to fires to assist FireRanger crews that work on the ground. Airtanker systems can be modelled as spatial queueing systems with fires as customers that arrive at rates that vary over both time and space and airtankers as mobile servers that fight fires at spatially dependent service rates. In order to model the airtanker service process one must know how much time airtankers spend travelling to and from and dropping water on fires. We developed a methodology for processing historical fire, airport location and on-board airtanker tracking GPS data to identify the key events that take place while airtankers are involved in fire suppression operations. We used that data to develop detailed models that describe how airtankers participate in the initial attack process. Those models can be incorporated in strategic, tactical and operational airtanker management decision support systems. We conclude by suggesting that our methodology be extended to model the use of transport helicopters, trucks and heavy equipment in fire suppression, and the activities of FireRanger crews on the ground.