Technical Reports Road bridges

This page lists technical reports of PIARC in the field of road bridges. These publications are classified chronologically.

  • Bridge And Tunnel Strikes By Oversized Vehicles

    This report details the findings of a study carried out by Roughan & O’Donovan Ltd. (ROD) under the supervision of PIARC, in response to an open call for proposals published by PIARC to conduct the “Bridges and tunnels strikes by oversize vehicles” Special Project. The objective of the study was to examine proven countermeasures, practices, and technologies used to reduce the incidence of oversize vehicles striking bridges and tunnels along with effective processes for accurately reporting [...]

  • Overweight Vehicles: Impact On Road Infrastructure And Safety

    This report compiled the available information on overweight road freight vehicles around the world, the impacts they have on road infrastructure, road safety and the economic position of road infrastructure managers, and collected global best practices to prevent and mitigate overloading. Global experience Weight limits for road freight vehicles typically cover 2 aspects: gross vehicle weight and axle (set) load. Gross vehicle weights differ greatly between countries and continents, from as low [...]

  • Bridge Design Toward Improved Inspection And Maintenance

    The principle of designing bridges while having in mind the future inspections and maintenance has often been overlooked in the past, when in the design stage greater emphasis was placed on firstly fulfilling just the "initial requirements" of the bridge – mainly structural safety and serviceability – and secondly minimizing the initial capital cost. This approach has, in many instances, resulted in costly future maintenance which far exceeded the initial capital savings of not considering the [...]

  • Technical and Economic Considerations of Bridge Rehabilitation Methods

    Bridge owners who have to manage their bridge stock are concerned with bridge deficiencies. The main concerns are the degradation of bridge elements due to ageing, accident, and other factors. This is evaluated by the bridge condition index. But bridge owners also have to manage the evolution in the characteristics of the bridge: the original design may no longer be appropriate (number of lanes, load capacity, flooding frequencies, standards and other characteristics). In this case there is a need [...]

  • Damage and Deterioration Assessment Decision-Making for Highway Bridge Safety

    Bridge owners in most countries routinely assess bridge damage and deterioration to ensure the safety of the traveling public and appropriately manage the service life of a bridge. While in service, bridge owners discover damage or deterioration under two main circumstances. Firstly, damage or deterioration resulting over longer periods of time, and secondly damage or deterioration appearing instantaneously. “Triggers” or causes of this damage or deterioration include: environmental impacts, [...]

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