This study examines the impact of road surface distress, such as cracks, potholes, and unevenness, on road capacity, highlighting its role in maintaining efficient and safe traffic flow. The research aims to analyze the relationship between road capacity and pavement distress to provide insights for improving traffic efficiency and safety. Data were collected during morning and evening peak periods in the western region of Sri Lanka, focusing on two road sections—one with visible distress and one without. Road capacity was estimated by analyzing traffic flow and vehicle density, while distress was quantified using International Roughness Index (IRI) values obtained through a smartphone-based application. Findings showed a significant reduction in road capacity in the distressed section, with an average loss of 13.54%. IRI values further supported this, with 1.9 m/km in the non-distressed section and 8.02 m/km in the distressed area, highlighting the critical need for road maintenance to ensure efficient traffic movement.
Impact of Pavement Surface Distress on Road Capacity
International Airfield and Highway Pavements Conference 2025 ; 2025 ; Glendale, Arizona
Airfield and Highway Pavements 2025 ; 109-120
2025-06-05
Conference paper
Electronic Resource
English
Extent of capacity loss resulting from pavement distress
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