Monitoring of innovation in road pavements

This report examines road administrations and agencies policies for fostering, assessing and implementing innovation in road design and construction. From an international survey, eight types of innovation policies were identified: adaptation of existing specifications; agency led innovation, special organization processes; technical agreements and certification programs; value engineering proposals by contractors before and after contract bid; end-performance and long-term warranty contracts; [...]

Maintenance methods and strategies

This report presents the results of the answers from 16 countries to a survey regarding improved maintenance methods for flexible and semi-rigid pavements and the maintenance strategies. Regarding improved maintenance methods, the variations in the answers were found to be large. It also became clear that the knowledge about the long-term performance of different maintenance methods varies. It is not always clear whether the durability is an "expected" durability or an "achieved" durability. Some [...]

Guide for maintenance of concrete roads

The report firstly examines the different types of degradations of concrete pavements distinguishing those which are specific to jointed plain concrete pavements and those which relate to continuously reinforced concrete pavements. For each type of degradation, status indicator, status assessment, causes and remedial measures are presented. The report then describes the maintenance techniques providing precise indications on the products to use and the repair method. Three appendices complete [...]

Reduction of construction time and cost of road pavements

Road authorities who want to build, rehabilitate or repair pavements wish, for many reasons, to do this in the shortest possible time and at the lowest cost. However construction time and costs are often conflicting parameters. Hence the issue of reducing construction time and costs, without affecting the quality of the works, must be considered as a problem of optimization. A number of tools are available including: tendering procedures, the selection of technical solutions, organization methods [...]

Dealing with the effects of climate change on road pavements

Climate change can have a direct impact on the performance of our transportation infrastructure. The purpose of the report is to sensitize the road sector to the likely impacts of climate change on road pavements and to provide guidance on how to go about: -Assessing the vulnerability of road pavements to the direct impacts of climate change, and; -Identifying and prioritizing possible adaptation measures for road pavements that could be applied immediately or phased in over time, so as to [...]