Second, the project analysis was performed for structural and economic comparison of different maintenance alternatives using HDM-4. Questionnaire surveys and interviews are used to collect information from the city's road maintenance departments. First, it was assessed the procedures followed by the city's road authority to develop the appropriate road maintenance strategies.
This paper contains two significant areas that are studied. The Highway Development and Management (HDM-4) tool can do such measures to help decide which option is the best by evaluating the economic and structural conditions. To select the best maintenance alternative, calculations on the pavement layer's property are performed. Since there are different maintenance alternatives, the best strategy has to be chosen following the road's condition and the severity of the damage. Thus, the road's maintenance has to be carried out at the place, right schedule, right quality, and at the least cost. Most pavements start to show some traces of deterioration after construction and opening to traffic, but once neglected, the distress portions would be aggravated with corresponding increasing maintenance cost. However, some factors are affecting the performance of the pavement. The agency mandate is to design, construct, and maintain the road to sustain the traffic up to its design life without further strengthening. Published by Elsevier B.V.The roadway is one of the most crucial transportation modes to cater to inland movement within a country.