Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux

Type de document

RAPPORT DE RECHERCHE

Langue

anglais

Auteur

BENBOW ; HARRINGTON ; KARLSSON ; LANG ; SJOGREN ; BOUTELDJA ; CEREZO

Résumé / Abstract

ToolBox is one project in the ERA-NET ROAD programme. ERA-NET ROAD – Coordination and Implementation of Road Research in Europ was a Coordination Action funded by the 6th Framework Programme of the EC. The partner countries in ToolBox are Austria, France, Sweden and UK. Pavement managers deal with complex decisions when identifying lengths of their networks in need of maintenance and planning the appropriate maintenance treatments. Currently, they are heavily dependent on experience, even though many support systems exist, such as guidelines, monitoring and information systems. This project aims to advance the development and implementation of practical strategies and tools to assist road authorities in optimising the maintenance of their road networks, whilst still addressing the key interests, new challenges and expectations of road users. ToolBox aims at developing a “concept for proper maintenance planning” to assure the selection of adequate maintenance works (“schemes” or “objects”) to make effective use of the maintenance budget, based on available road condition data, to give minimal negative effects on road users, safety for road works and the environment. This report covers Work Package 4 of the ToolBox project, where the decision making tool, developed in Work Package 3, has been demonstrated to show a new and innovative way for optimising lengths for maintenance. The ToolBox tool firstly groups lengths of a similar condition into schemes, suggests what maintenance might be needed in order to return these schemes to a good condition and can then be used to perform whole life costing on these schemes. Functional triggers are used to define the overall condition of individual lengths and these are described in Chapter 2 of this report, along with suggested improvements for future versions of the tool. These functional triggers cover comfort, durability, safety and environment. Data requirements for ToolBox are discussed in Chapter 3, along with whether the data is generally available and how missing, or insufficient data has been dealt with within the Demonstration. Chapter 4 contains a description of the spread sheet tool and how to use it. The method used to select maintenance candidates, and also how treatments are chosen, is also described in this chapter. The Life Cycle Cost Analyses used to prioritise candidates are then described in Chapter 5, along with how the tool can be used to perform this analysis. Suggestions for improvements for future versions of the tool are also made. A demonstration of the tool is presented in Chapter 6, using data collected from partner countries. The approach proposed by the ToolBox tool has been compared and contrasted with the approach used by current systems and proposals for how the results could be implemented into the actual work flow of the road owner/operator.