Publications

In this paper a framework for assessing the robustness of existing reinforced concrete structures under corrosion is presented. Robustness is defined as a structural property related to the tolerance to damage and is measured by the mean performance…

The management of bridges as a key component in transportation infrastructure has become a major concern due to increasing traffic volumes, deterioration of bridges and well-publicised bridge failures. A critical responsibility for asset managers in…

Performance modelling is an asset management tool used to quantify or qualify the performance of a bridge within the context of the overall bridge network. Performance modelling techniques include the use of performance indicators and deterioration…

This report develops approaches that estimate the marginal cost (MC) of bridge wear for heavy vehicle usage and estimates the availability and reliability of the data needed to use these approaches. Two approaches were examined. The first was an…

The RTA Bridge Engineering Branch and Asset management Section routinely assess proposals by external developers that involve deep excavations for new infrastructure construction located adjacent to its bridge structures. These excavations have the…

All the existing bridges require a maintenance regime to enable the structure to sustain the current traffic loads. The defects in the structure can be identified through regular inspections. There should be a defined inspection procedure not to…

One of the hottest discussed topics in the international engineering community at present is sustainability of infrastructure with respect to global warming and climate change. Global warming and climate change could result in frequent extreme…

Bridge management is a comprehensive process linking bridge inspection and appraisal with community needs and funding sources, to plan, prioritise, fund, and procure the operation, maintenance, rehabilitation, upgrading and replacement of existing…

This paper proposes a risk and criticality strategy that can be used in the development of bridge specific data collection and monitoring strategies. New Zealand has on average one bridge every 5.2km. The functionality of the road network is…

The nation of Zambia is located in southern Africa, covering an area slightly larger than the state of Texas. The Road Development Agency (RDA) manages over 5,000 bridges and culverts on the national road network. These structures are vital to the…