Determining Condition of Road Surface and Contribution of Roadside Frictions Towards Traffic Flow to Estimate Effective Road Width

Abstract

A condition survey is the process of collecting data to determine the structural integrity, distresses, skid resistance, and overall riding quality of the pavement. The way surveys are conducted has vital influence on designs, on production of quantities and cost estimates and finally on execution of the work. In this study, the condition survey of the corridor from Russel Square to Panthapath Intersection was conducted to identify various geometric and operational conditions of the road. The survey was conducted manually, by walking survey method with photographs. Various roadway features, availability of constituents was observed, noted, and analyzed. Causes of side-friction and loss of road width were identified with approximate loss incurred by the deterrents. The study found the road to be adequate in terms of road conditions, however, aligning the condition with the initial purpose of the road made the condition to be unsatisfactory. Side frictions were constantly present with high frequency, leading to a low level of service at times. Various traffic control devices were installed in places, but they were dysfunctional or not operational, leading to flow being hindered. Furthermore, pedestrian crossing facilities were found to not be adequate with respect to the road being a link road with high-speed traffic. Various recommendations have been made to improve the condition of the road, both geometrically and operationally.