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Among several goals of the road agencies, one of the most relevant is the maintenance and rehabilitation of the road pavement. The growth of traffic, the longstanding lack of funding and, sometimes, an emergency-based planning of intervention, are common drivers leading to low level of pavement conditions in terms of ride quality and safety. In addition both cost and environmental concerns due to monitoring stage are relevant issues within the management system of local and urban road network, especially. With the purpose of implementing sustainability in the road pavement management, this paper provides an approach based on coupled low- cost 3D image modelling distress identification and Life Cycle Assessment (LCA) tool. A case study in Palermo is considered by comparing current practices to the optimized system to define environmental impacts. The results show the use of this approach is able to achieve both environmental and economic benefits for road agencies by providing crucial savings and furthermore by optimising the Pavement Management System.