Guidelines for Network Level Measurement of Road Roughness

The primary objective of these guidelines is to assist road network management personnel to plan, execute and control the measurement of road roughness (or riding quality) over a road network. These measurements are typically intended for use in the network’s Pavement Management System (PMS) to assess the network condition and prioritize maintenance and rehabilitation actions. Secondary and associated objectives of these guidelines are to provide a definition and clarification of key concepts and methodologies. These guidelines are thus primarily concerned with the needs of roads agencies or managers of road networks. Although some details of measurement procedures are discussed, the emphasis remains on the needs of the network manager, and not on the needs of the contractor in charge of the actual roughness measurement. The scope of the guidelines is also limited to roughness measurement at the network level, and does not cover applications such as roughness measurement at the project level or for research purposes.