ABSTRACT
ABSTRACT: A new methodology for sustainable bridge management is proposed which encompasses whole life costing and life cycle assessment objectives under conditions of uncertainty. Direct impacts from maintenance works themselves, as well as indirect impacts from traffic disruption and delay, can be taken into account in calculating whole life costs and environmental scores of alternative maintenance plans. Moreover, the multi-criteria decision analysis technique is used in order to calculate the most preferable maintenance plan in terms of a linear combination of whole life cost and environmental score based on each decision-maker’s preference. The proposed methodology is demonstrated through a simple example of a deteriorating reinforced concrete bridge element.
