In this brochure, BRRC concentrates on the topic area of sustainable development. Sustainable development is becoming increasingly hard to ignore any sector of society, and is perceived as a potential driving force behind economic development.
To help designers (or decision-makers) with the choice of pavement type, a working group of experts (engineering consultants, contractors, public authorities and researchers) in the fields concerned has compiled a code of good practice for the choice of asphalt pavement type in road design and maintenance (BRRC publication R78/06).
Several actors are in charge of constructing and maintaining road infrastructure. They may be regions or municipalities, but also managers of specific facilities such airfield strips, port areas, industrial areas, etc. All of them, however, are faced with the same challenges raised by ageing infrastructures, ever increasing traffic loads, and budget restrictions.
The quality of road infrastructure is important to all actors, but is perceived in different ways:
This report represents a case study of the major road works undertaken on the E411-E25 motorways in the south of Belgium. The works are being undertaken over a three year period and involve long-term operations on significant sections of two key routes.
The report concentrates on traffic management issues; it presents the evolution of the planning for the road works, the performance of the initial layout, the reasons for, and consequences of, modifications to this layout, and the relationship of the results obtained to previous experience. It describes the genesis, the chronology and the course of the road works until mid-September 2004. The traffic management issues are developed extensively, including the equipment put in place and the layout options. The report provides an abundance of data pertaining to traffic and speed, both before and during the works.