Reports on computerized road, bridge and pavement management systems.
Reports on road management systems.
The application of the principles of road management.
Other files not fitting into the above.
This technical report provides an exhaustive evaluation of the economic, structural, and environmental benefits of proactive asphalt pavement preservation strategies across highway networks in the United States. Pavement preservation emphasizes applying the right treatment to the right road at the right time—treating pavements while they are still in good condition to extend service life and delay costly structural rehabilitation. The document synthesizes long-term performance data from state departments of transportation (DOTs) and Federal Highway Administration (FHWA) test sites, evaluating treatments such as chip seals, micro-surfacing, slurry seals, fog seals, thin asphalt overlays, and crack sealing. Using lifecycle cost analysis (LCCA), the report proves that every dollar invested in timely preservation yields four to ten dollars in deferred reconstruction savings. In addition to direct agency cost reductions, the study quantifies user benefits, including sustained low surface roughness (which lowers vehicle fuel consumption and tire wear) and minimized traffic disruption compared to major reconstruction projects. The report also highlights sustainability advantages, showing that preservation treatments consume significantly less raw aggregate, asphalt binder, and embodied energy, resulting in lower lifecycle greenhouse gas emissions. Technical guidelines are included for selecting appropriate preservation treatments based on existing pavement distress, traffic volume, and environmental conditions.
This strategic technical report presents a modernized framework for lifecycle infrastructure planning and asset management for the national highway network of Georgia (the country in the Caucasus). Facing increased transit freight traffic along the East-West Highway corridor and complex mountainous terrain, the Georgian Roads Department required an upgraded decision-support system to optimize long-term capital investments and maintenance allocations. The document details the implementation of lifecycle cost analysis (LCCA) methodologies integrated with HDM-4 economic evaluation software and GIS-based asset management tools. It addresses key local challenges, including severe winter weathering, seismic hazards, landsliding risk, and heavy international truck traffic. The report establishes multi-year deterioration modeling strategies for both flexible asphalt and rigid concrete pavements, defining optimal intervention thresholds for preventive maintenance, rehabilitation, and full reconstruction. Furthermore, it incorporates climate resilience criteria into lifecycle decision frameworks, evaluating the cost-effectiveness of enhanced drainage structures and slope stabilization measures. The document serves as an operational blueprint for institutionalizing lifecycle management principles within the Georgian transport sector, ensuring sustainable asset performance and maximizing the return on public infrastructure investments.
The Africa Community Access Partnership (AfCAP) has provided technical assistance to foster improvements in asset management performance in selected rural road agencies in four countries in Sub-Saharan Africa. The four countries participating are Zambia, Uganda, Sierra Leone and the Western Cape region of South Africa. The project promoted a change in the approach of rural road agencies towards the management of their road networks; it encouraged a holistic approach, where road agencies consider all six building blocks of the Road Preservation Pyramid. Based on the project, a practitioners' guidelines has been developed for effective rural road asset management. The guidelines include performance assessment and management tools that were developed and tested in the field.
This Compendium of Best Practices in Road Asset Management was developed as part of the support of the Central Asia Regional Economic Cooperation (CAREC) Program toward the establishment of competitive transport corridors; the facilitation of movement of people and goods; and the provision of sustainable, safe, and user-friendly transport and trade networks. This compendium was prepared in the context of CAREC’s Transport and Trade Facilitation Strategy 2020, and is aimed at improving the management and maintenance of CAREC road corridors through the sharing of good practices that exist within CAREC countries.
Although called 'Best Practices' that should not be taken to be universally applicable. While these may be best for some CAREC countries, they fall well short of what we consider best practices to be!
This technical publication investigates the integration of tire-pavement noise measurements into standard Pavement Management Systems (PMS). As environmental noise pollution becomes a growing concern for highway agencies and urban communities, traditional PMS frameworks—which focus primarily on structural adequacy, surface roughness, and friction—are increasingly required to incorporate acoustic performance metrics. The document outlines methodologies for measuring traffic noise emission at the tire-pavement interface using Close-Proximity (CPX) and On-Board Sound Power (OBSP) testing methods across various surface textures, including open-graded asphalt, stone mastic asphalt, and surface dressings. It demonstrates how acoustic deterioration curves can be modeled over time as pavement surfaces age, aggregate polishing occurs, and voids become clogged. By treating noise level as an explicit performance indicator alongside the International Roughness Index (IRI) and rutting depth, transport authorities can optimize maintenance schedules to address both functional road quality and environmental noise mitigation. The paper includes decision-tree frameworks and multi-criteria optimization algorithms that help agency managers balance surface resurfacing costs against acoustic benefits. Case studies demonstrate that early acoustic interventions, such as low-noise thin overlays or corrective surface texturing, can yield substantial reductions in community noise exposure without requiring expensive structural rehabilitations or sound barriers. The study concludes with practical recommendations for standardization, field data collection protocols, and software integration strategies to incorporate acoustic metrics into existing network-level asset management platforms.
