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| Tekkaya, A. Erman |
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| Förster, Peter |
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| Mudimu, George T. |
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| Shibata, Lillian Marie |
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| Talabbeydokhti, Nasser |
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| Laffite, Ernesto Dante Rodriguez |
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| Schöpke, Benito |
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| Gobis, Anna |
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| Alfares, Hesham K. |
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| Münzel, Thomas |
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| Joy, Gemini Velleringatt |
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| Oubahman, Laila |
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| Filali, Youssef |
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| Philippi, Paula |
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| George, Alinda |
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| Lucia, Caterina De |
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| Avril, Ludovic |
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| Belachew, Zigyalew Gashaw |
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| Kassens-Noor, Eva | Darmstadt |
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| Cho, Seongchul |
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| Tonne, Cathryn |
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| Hosseinlou, Farhad |
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| Ganvit, Harsh |
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| Schmitt, Konrad Erich Kork |
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| Grimm, Daniel |
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Nicolosi, Vittorio
in Cooperation with on an Cooperation-Score of 37%
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Publications (13/13 displayed)
- 2023Towards a New Design Methodology for Vertical Traffic Calming Devicescitations
- 2023Towards an Urban Smart Mobility: Preliminary Results of an Experimental Investigation in Artenacitations
- 2022A Probabilistic Approach to the Evaluation of Seismic Resilience in Road Asset Managementcitations
- 2022Safety Oriented Road Asset Management Methodology for Urban Areascitations
- 2022Potential environmental impact of introduction of electric vehicles in private and public fleets: a case study in Cassino
- 2022Safety Index for evaluation of urban roundaboutscitations
- 2022Seismic Resilience Assessment Strategy for Social and Sustainability Impact Evaluation on Transportation Road Network: A Seismic Liquefaction-Induced Damage Applicationcitations
- 2021Towards a better understanding of vulnerability in pedestrian-vehicle collisioncitations
- 20213D Simulations of Two-Component Mixes for the Prediction of Multi-component Mixtures’ Macrotexture: Intermediate Outcomescitations
- 2020An exploratory step to evaluate the pedestrian flow in urban environment.citations
- 2019Pavement maintenance of small municipalities: Evaluation of the quality evolution for different budget scenarioscitations
- 2019Planning urban pavement maintenance by a new interactive multiobjective optimization approachcitations
- 2014Some remarks on landing kinematic characteristics of aircrafts
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article
Safety Index for evaluation of urban roundabouts
Abstract
: Recently, there is a growing interest in road safety assessments based on the examination of the characteristics of the road aimed at identifying the presence of risk factors. This approach, named road assessment program or network wide road safety assessment, is required by the EU Directive 2019/1936 on road infrastructure safety management. Reliable procedures for assessing the inherent safety of all the elements of the road network are required to conduct roadway safety assessments. To provide a contribution toward the development of procedures for network wide road safety assessment, this paper develops and validates a Safety Index (SI) for evaluating urban roundabouts. The SI is assessed both at the roundabout level as well as at the roundabout approach level. This procedure detects the safety issues that are the largest contributors to crash risk in order to identify the safety measures that provide the greatest crash reduction at roundabouts. The SI is formulated by combining two components: the exposure of road users to road hazards (Exposure) and the risk factors which increase the probability of involvement in crashes (Risk Index). The procedure considers 33 detailed safety issues and 5 general safety issues to compute the Risk Index. Criteria for identifying and ranking the safety issues are defined. The SI procedure was validated in a sample of 50 urban roundabouts located in Rome, Italy. The sample consisted of 12 single-lane roundabouts and 38 two-lane roundabouts, with a total number of approaches equal to 179. In these roundabouts, the SI scores and the EB crash estimates were compared with reference both to the whole roundabouts as well as to the single roundabout approaches. The correlation between the SI scores and EB estimates was highly significant both at the roundabout level (R2 = 0.85, t = 16.49, p-value < 0.001) as well as at the approach level (R2 = 0.56, t = 14.88, p-value < 0.001). The results from Spearman's rank-correlation analysis provided further validation for the SI ...
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