Incorporating environmental performance into network-level pavement management and maintenance policy: A systematic review of tools

The reduction of material consumption and greenhouse gas emission when maintain and rehabilitating road networks can achieve added benefits including improved life cycle performance of pavements, reduced climate change impacts and human health effect due to less air pollution, improved productivity due to optimal allocation of resources and reduced road user cost. This is the essence of incorporating environmental sustainability into pavement management. The functionality of performance measurement approach has made it one of the most valuable tool to Pavement Management Systems (PMSs) to account for different criteria in the decision-making process. However measuring environmental performance of road network is still challenging in road network management practice, more so an agency-wide environmental sustainability or sustainable maintenance specifications is absent. To address this challenge, this present research focuses on environmental sustainability performance of network-level pavement management. The ultimate goal is to develop a framework to incorporate environmental sustainability in pavement management systems for network-level maintenance program. In order to achieve this goal, this paper present the first step, intention is to review the previous studies that employed environmental performance measures, as well as the suitability of environmental performance indicators for the sustainability evaluation of network-level pavement maintenance strategies. This paper provides a brief forward regarding the environmental sustainability performance metrics and challenges to integrating measures into pavement management decision making. A next step will involve an industry and agency survey to identify the state-of-practice trends In environmental performance measurement, highlight data available and data needed, and propose the framework to incorporate measures into network-level sustainable maintenance and rehabilitation programming.