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- Malone, Kerry, et al.
(author)
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Safety, mobility and comfort assessment methodologies of intelligent transport systems for vulnerable road users
- 2017
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In: European Transport Research Review. - : Springer. - 1867-0717 .- 1866-8887. ; 9:2
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Journal article (peer-reviewed)abstract
- IntroductionThis paper describes the modification and development of methodologies to assess the impacts of Intelligent Transport Systems (ITS) applications for Vulnerable Road users (VRUs) in the domains of safety, mobility and comfort. This effort was carried out in the context of the VRUITS project whose aim was to produce results at the EU-28 level.MethodsAn existing safety methodology was modified to take into account specific VRU aspects. The mobility and comfort assessments methodologies were developed in the project.ResultsThe safety, mobility and comfort methodologies were applied to ten ITS applications for VRUs. The first innovation determined how the nine safety mechanisms for ex-ante analysis of ITS applications, including direct and indirect effects, can incorporate the important characteristics of the VRU groups (pedestrians, cyclists and Power-Two-Wheeler riders) in the analysis. The second innovation developed a conceptual model for mobility and comfort. Thirdly, the estimation of quantitative effects, using literature, empirical findings and expert judgement, was developed.ConclusionsThe new safety, mobility and comfort assessment methodologies were applied to calculate the respective effects for VRUs using ITS. These results are ex-ante findings, as very few to no empirical results for ITS applications for VRUs are available. In order to improve the accuracy of the estimates, there is a need for better standardized data and at the European level. Finally, validation of the methods could be done in the future field operational tests focusing on measuring user behavior.
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- Scholliers, Johan, et al.
(author)
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Impact Assessment of Its Applications for Vulnerable Road Users
- 2016
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In: Transportation Research Procedia. - : Elsevier BV. - 2352-1465. ; 14, s. 4515-4524
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Journal article (peer-reviewed)abstract
- The EU-sponsored VRUITS project has prioritized ITS applications which have a potential to improve the safety, mobility and comfort of vulnerable road users (VRUs) and performed a quantitative safety, mobility and comfort assessment for the 10 most promising systems. The assessment methodology addresses not only the direct effects of the systems, but also unintended effects and effects through changes in mobility patterns. The 10 selected ITS were: VRU beacon system, Powered Two Wheelers oncoming Vehicle information, Bicycle-to-vehicle communication, Cooperative Intersection safety, Green wave for cyclists, Pedestrian & Cyclist detection with Emergency Braking, Blind spot detection, Intelligent pedestrian traffic signal, Crossing adaptive lighting and Information on bike rack vacancy. The paper presents the quantitative estimates for the impact on safety, mobility and comfort. The outputs of the impact assessment are translated into socioeconomic indicators via a social cost-benefit analysis.
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