engleski

COMPARISON OF DESIGN VARIANTS FOR ROUNDABOUT RECONSTRUCTION USING AHP METHOD – CASE STUDY

Traffic intersections are considered to be the most complex and the most demanding points where several traffic streams intersect. The paper presents the reconstruction analysis of the large urban three-lane roundabout Jadranska Avenue - Dubrovnik Avenue located in the City of Zagreb (Croatia). The goal of this study is to find the optimal traffic-technical and urban solution in a scope of road safety using multi- criteria decision-making procedure. Current traffic conditions and problems regarding the capacity and road safety are presented. Three developed conceptual solutions have been also used and analysed. The collected data show the reasons why local municipality wants to bring the roundabout into the condition of efficient capacity and road safety. The present work describes applying the multi-criteria analytical hierarchy process (AHP) method to evaluate roundabout design variants through differential weighting of various criteria and subcriteria with emphasis on road safety. For solving the multi-criteria analysis the Expert Choice software package has been used. This approach may prove useful for evaluating and selecting appropriate roundabout designs for this and other contexts.

roundabout; road safety; design variants; analytic hierarchy process

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