Demand Responsive Approach to Highway Maintenance and Rehabilitation. Volume 2. Optimal Investment Policies for Maintenance and Rehabilitation of Highway Pavements

摘要

The work adopts optimal control theory as the basis of a new management framework to determine optimal investment policies for maintenance and rehabilitation of highway pavements. The first part encompasses a review of concepts and methodologies of current pavement management systems to compare the systems' objectives, assumptions, capabilities and limitations. The second part describes the development of decision models for investments in routine maintenance and rehabilitation, using optimal control theory. The third part of the research demonstrates how the rehabilitation decision model can be further developed to support network-level pavement management decisions under open-ended or restricted budgets. For the latter case, a procedure is suggested to set priorities for shifting the recommended timing of projects competing for limited resources.