Abstract
An adequately functionally located traffic infrastructure is an important factor in the mobility of people because it affects the quality of traffic, safety and efficiency of carrying out transportation activities. Locating a roundabout on an urban network is an imperative for road engineering to address traffic problems such as reduction of traffic congestion, enhancement of security and sustainability, etc. Therefore, this paper evaluates potential locations for roundabout construction using Rough BWM (Best Worst Method) and Rough WASPAS (Weighted Aggregated Sum Product Assessment) models. Determination of relative criterion weights on the basis of which the potential locations were evaluated was carried out using the Rough BWM method. In this paper, in order to enable the most precise consensus for group decision-making, a Rough Hamy aggregator has been developed. The main advantage of the Hamy mean (HM) operator is that it can capture the interrelationships among multi-input arguments and can provide DMs more options. Until now, there is no research based on HM operator for aggregating imprecise and uncertain information. The obtained indicators are described through eight alternatives. The results show that the fifth and sixth alternatives are the locations that should have a priority in the construction of roundabouts from the perspective of sustainable development, which is confirmed throughout changes of parameter k and with comparing to other methods in the sensitivity analysis.
Highlights
Increase in a number of traffic accidents and the development of modern traffic signaling have affected realistic traffic solutions at intersections aimed at constructing roundabouts, which has improved the capacity and safety of traffic participants
There is no research based on Hamy mean (HM) operator for aggregating imprecise and uncertain information
The results show that the fifth and sixth alternatives are the locations that should have a priority in the construction of roundabouts from the perspective of sustainable development, which is confirmed throughout changes of parameter k and with comparing to other methods in the sensitivity analysis
Summary
Increase in a number of traffic accidents and the development of modern traffic signaling have affected realistic traffic solutions at intersections aimed at constructing roundabouts, which has improved the capacity and safety of traffic participants. In the Netherlands [3], turbo-roundabouts with 20 to 30% higher speeds of movement in them and with greater safety are introduced These roundabouts possess a specific central circle (called a cutting tool). At the intersections regulated by light signals, there is a problem of the junction of the flows of pedestrians and vehicles, which adversely affects pedestrians, as a “vulnerable” category. The third aim of the paper is to develop a model for the construction of a roundabout in Doboj applying the integrated Rough Best Worst Method (BWM) and Rough Weighted Aggregated Sum Product Assessment (WASPAS) approach
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