Abstract
This paper aims to propose the optimal control policy for the maintenance of the multiple runway system, in particular, concern the influence of the flight demand on the runway condition. First, the mathematical formulation for this problem is discussed and the necessary conditions for the optimization are obtained by applying the traditional Pontryagin's Maximum Principle. Second, through the numerical examples, it is understood that for the effective maintenance policy for the multiple runway system the long interval for maintenance is required in spite of the thickness of the resurfacing. Moreover, the maintenance schedule that has a short interval gives the concentration to one runway, while the schedule that has a long interval gives the “even share” to each runway.
