DEVELOPMENT OF IRAQI SUSTAINABLE RATING SYSTEM (ISRS) FOR ROADWAY PROJECTS

Sustainable roadway life cycle requires a good balance betweenenvironment, economy, and social aspects. Green construction for roadsshould have a voluntary sustainable rating system for roadway life cycleincluding planning, design, execution, and maintenance stages and it shouldbe applicable to all roadway projects as new, reconstructed and rehabilitatedroadway. The rating system could be used to rank, score and comparedifferent roads projects according to their overall performance toward beingmore sustainable than the traditional road project. The goal of this researchis to develop a sustainable rating system for roadway projects in Iraq (ISRS)by taking into consideration the local environmental conditions, economy,and materials processing actions available. This paper investigates criteriaand sub criteria weightings of the suggested roadway rating systemdepending on planning, design, execution, and maintenance activitiesthrough the project life cycle. The methodology processes includes datacollection by using a closed questionnaire distributed to 40 roadway expertsin order to verify the criteria and sub criteria credit weightings based on therelative importance of the roadway related impacts that each creditaddresses. Statistical analysis of experts answers have been evaluated byusing SPSS with factors analysis method to ensure the compatibility and thevalidity of credits selected in the rating system. Finally five classificationlevels have been selected of the Iraqi roadway based on credits earned bythe road according to the application of the proposed evaluation system(ISRS).

کلیدواژه ها:

Rating system ، green construction ، sustainable roadway