Abstract Climate attributes such as precipitation, extreme temperature, and freeze-thaw cycles along with traffic loads cause pavement distresses. The maintenance need for pavements is decided based on the condition rating International Roughness Index (IRI). Generally, an IRI less than 2.68 m/km acceptable, a greater considered unacceptable classified “very poor” of pavement. It imperative to ...

Hot-in-place recycling of asphalt pavement is one the important regeneration technologies engineering, which apply to pavements with fewer diseases, excellent driving quality, slight rutting, and good structural strength. However, surface layer some road sections was aging, penetration index aged at 25°C lower than 20(0.1mm), does not meet recommended requirements criterion in China. In 2019, 3...

There are no existing local design manuals and construction guidelines for reinforced earth structures in Kenya. The objective of this study was to evaluate the performance pavement found on sections along Outer Ring Road. structural evaluation determined from deflection measurements using Falling Weight Deflectometer (FWD), while functional by visual condition survey, roughness, rut depth meas...

FOREWORD The main objective of this project is to quantify and resolve the differences in the longitudinal profile and roughness indices that are attributable to the different profiling equipment that have been used in the LTPP program. The Long-Term Pavement Performance (LTPP) program was designed as a 20-year study of pavement performance. A major data collection effort at LTPP test sections ...

This two-part manuscript presents a comprehensive methodology for the irregularity assessment of urban stone pavements. The proper road surface using key performance indicators is necessary to plan appropriate maintenance strategies. However, there are no monitoring methods or evaluation criteria pavements whose surfaces more uneven than traditional ones due their structural characteristics. Th...

Routine and consistent data collection is required to address contemporary transportation issues. The cost of increases significantly when sophisticated machines are used collect data. Due this constraint, State Departments Transportation struggle for analyzing resolving problems in a timely manner. Recent advancements sensors integrated into smartphones have resulted more affordable method col...

This study investigates the field performance of Warm Mix Asphalt (WMA) road overlays containing various amounts RAP and binder. Rutting, International Roughness Index (IRI), transverse, longitudinal alligator cracking are key parameters considered here. Our research is based on a Specific Pavement Study-10 experiment (SPS-10) conducted in nine states North America (eight USA one Canada) that i...

Gravel pavement has lower construction costs but poorer performance than asphalt surfaces on roads. It also emits dust and deforms under the impact of vehicle loads ambient air factors; resulting ripples ruts constantly deepen, therefore increase vibrations fuel consumption, reduce safe driving speed comfort. In this study, existing quality evaluation indexes are analysed, a methodology for ada...