IMPLEMENTATION OF COMPUTER AIDED SYSTEM FOR MANAGEMENT OF PAVEMENT MAINTENANCE DECISION

The acceptable serviceability and performance of asphalt concrete pavementduring the design life is highly dependent on long term monitoring of thepavement surface condition, and implementing the right decision to start themaintenance, and the right maintenance alternative at the right time. Thispaper describes the implementation of computer aided system to assess inthe management of asphalt pavement maintenance decision using VanguardSoftware. The Visual inspection and the walk through techniques forevaluating the Asphalt Concrete pavement surface condition have beenutilized. Common types of Asphalt pavement distresses including variouscracking types, bleeding of Asphalt, patching, pot holes, and deformation,with their various severity and intensity level have been included in the database of the system. The pavement condition is recommended to be visuallyevaluated, and distress data will be fed to the software system. The types ofdifferent distresses intensity and severity will be subjected to analysis by thesystem, and the present condition rating index (PCRI) of the pavement isdetermined. The decision tree of the system suggests the requiredmaintenance action based on the budget available, classification of theroadway, and the expected change in the design life of the pavement whensuch maintenance decision is implemented.

کلیدواژه ها:

Management ، maintenance ، decision tree ، Asphalt concrete ، visual inspection