A Decision Support System for Road Safety Analysis

Abstract

The aim of this paper is to develop a procedure for supporting public administrations in planning safety interventions on the road network. Road safety conditions depend on several factors, represented by a variety of quantitative and qualitative data, including: number of traffic accidents, traffic flow, lane width, shoulder width, road curvature and grade, access-point density, road markings and road signs (Mooren et al. 2012; OECD, 2002). By analysing a set of given roads or different sections of the same road, each with specific safety conditions, this methodology allows to determine which sections require interventions to improve safe driving conditions. Specifically, the multicriteria analysis technique is used in decision-making processes to support the choice among different alternatives in complex problems (Fadda, 2002). Among the different multicriteria techniques available, the Concordance Analysis will be used here. This paper proposes a unique modelling tool that incorporates the different indicators to calculate safety conditions. The methodology has been applied to a real case study for evaluating road safety on sections of a motorway infrastructure.

Multicriteria Model Based on FITradeoff Method for Prioritizing Sections of Brazilian Roads by Criticality

“…Hence, the analysis of intervention priorities was based on the final ranking. In a similar approach, Fancello et al [20] developed a decision support system (DSS) for road analysis incorporating different indicators.…”

“…Given this structure, a multicriteria approach to deal with this type of problem is frequently taken [6,[19][20][21]. Within the different approaches used in multicriteria analysis, additive models stand out [22][23][24][25].…”

“…Within the different approaches used in multicriteria analysis, additive models stand out [22][23][24][25]. However, an inherent difficulty when using these methods concerns the elicitation of weights, given the cognitive effort required in this process [19,20,24,26,27]. us, this paper proposes using a multicriteria approach to address the problem [21].…”

Analysis and Assessment of Lithuanian Road Accidents by AHP Method

“…Moreover, some scientists proposed MOORA method for group decision-making (Stanujkic, 2016). Multi-criteria methods, especially AHP, are widely used for evaluation of different indicators to calculate safety conditions and estimate the significance of transport system elements with significant influence on traffic safety (Aghdaie, Hashemkhani Zolfani, & Zavadskas, 2012;Hajeeh, 2012;Podvezko & Sivilevičius 2013;Fancello, Carta, & Fadda, 2015. Finally, Chen et.…”

A System Supporting the Analysis of Motorway Traffic Accidents

“…A system supporting decision makers in transport planning, in particular optimizing the resource assignment to the interventions for ensuring safety, is discussed in [18]. In [19], the same authors recently proposed a system for supporting public administrations in planning safety interventions on the road network. A DSS for emergency management on motorways based on a Geographical Information System (GIS), whose purpose is to improve efficiency by providing organizational support to the different actors involved, is presented in [20].…”