TEVOH NDINGWAN

PhD Student

PhD program:: XL
email: tevoh.ndingwan@uniroma1.it
phone: +39 351 955 6872
building: RM 031 DICEA - SPV
room: L020 Area Trasporti - IV Piano




supervisor: Prof. Luca Persia

Research: Implementation of the European Network Wide Road Safety Assessment (NWA) methodology, bridging the gap by creating a simplified and automated decision support tool for assessment of motorways, primary roads, and adaption to secondary and regional roads.

Context and Problem: The European TEN-T road network is among the safest globally; however, the majority of crashes occur on lower order roads. Current EU Directives on Road Infrastructure Safety Management (RISM: Directive 2008/96/EC and Directive 2019/1936) establish regulations to enhance road safety. Yet, the official implementation guidelines for Network-wide Road Safety Assessments (NWA) focus on motorways and primary roads, leaving secondary roads—where a disproportionate share of crashes occur—insufficiently addressed.

Research Aim: My PhD research aims to make the implementation of the current NWA methodology easier to implement by developing an automated decision support for road safety assessments and cover several implementation gaps in the methodology. In addition, the adaptation and extension of the methodology to cover secondary and/or regional roads will be carried out.

Current Activities and Progress: To date, my work has centred on an extensive literature review of network-ranking methodologies and their implementation. The specific focus has been to identify and prioritize the road infrastructure features—such as geometry, —that most significantly influence accident rates, and their prediction, on secondary roads. The findings from this review will be used to define the parameters for the new assessment model.


Research products

11573/1758201 - 2025 - Exploring the Contribution of Road Infrastructure and Environmental Factors to Crash Severity at Intersections in Mixed Traffic Settings
Feudjio, Steffel Ludivin Tezong; Isaac Ndumbe, Jackai Ii; Ngwah, Elvis Chia; Fondzenyuy, Stephen Kome; Ndingwan, Tevoh; Usami, Davide Shingo; Persia, Luca - 01a Articolo in rivista
paper: INFRASTRUCTURES (Basel : MDPI AG , 2016-) pp. - - issn: 2412-3811 - wos: WOS:001648301900001 (0) - scopus: 2-s2.0-105025916169 (0)

11573/1748875 - 2025 - Impact of Rural Roads Crash Modification Factors on Urban Road Safety Assessment Methodologies
Chia Ngwah, Elvis; Ndingwan, Tevoh; Isaac Ndumbe, Jackai Ii; González-Hernández, Brayan; Usami, Davide Shingo - 02a Capitolo o Articolo
book: Young Researchers Seminar 2025 – Proceedings of the 12th Young Researchers Seminar, hosted by BASt, 3 - 5 June, 2025 (YRS 2025) - (978-3-95606-886-7)

11573/1758605 - 2025 - Traffic conflict-based crash estimation models. Overview and application across various traffic environment
Feudjio Tezong, Steffel Ludivin; Isaac Ndumbe, Jackai Ii; Chia Ngwah, Elvis; Stephen Kome Fondzenyuy, ; Ndingwan, Tevoh; Usami, Davide Shingo; Persia, Luca - 04c Atto di convegno in rivista
paper: TRANSPORTATION RESEARCH PROCEDIA ([Amsterdam] : Elsevier B.V.) pp. 251-258 - issn: 2352-1465 - wos: (0) - scopus: (0)
conference: 2025 Elsevier Transportation Research Symposium (Rotterdam)

11573/1758606 - 2025 - Application of extreme value theory models to crossing conflicts in mixed traffic intersection. Evidence from a case study in Yaoundé, Cameroon
Feudjio Tezong, Steffel Ludivin; Isaac Ndumbe, Jackai Ii; Chia Ngwah, Elvis; Stephen Kome Fondzenyuy, ; Ndingwan, Tevoh; Usami, Davide Shingo; Persia, Luca - 04c Atto di convegno in rivista
paper: TRANSPORTATION RESEARCH PROCEDIA ([Amsterdam] : Elsevier B.V.) pp. 244-250 - issn: 2352-1465 - wos: (0) - scopus: (0)
conference: 2025 Elsevier Transportation Research Symposium (Rotterdam)

11573/1757131 - 2025 - Pendular mobility in Yaoundé: determinants, constraints and sustainable perspectives
Nguiadem Tchamologne, Audrey Stéphanie; Wounba, Jean Francois; Fondzenyuy, Stephen Kome; Ndingwan, Tevoh; Nkeng, George Elambo - 02a Capitolo o Articolo
book: International Journal of Transportation and Logistics Research - ()

11573/1747373 - 2025 - Evaluating Road Infrastructure Safety in Bamenda, Cameroon: A Data-Driven Approach Using Reactive Safety Performance Indicators and iRAP Star Ratings
Olive Dubila, Dindze; Jean Francois, Wounba; Fondzenyuy, Stephen Kome; Ndingwan, Tevoh; George Elambo, Nkeng - 02a Capitolo o Articolo
book: International Journal of Transportation and Logistics Research - ()

11573/1722401 - 2024 - Assessment and countermeasures selection for safer roads to schools in the city of Yaoundé: progressive evaluation using surveys and iRAP methodology
Ndingwan Tevoh Lordswill, ; Jean-Francois, Wounba; Fondzenyuy, Stephen Kome; Feudjio Tezong, Steffel Ludivin; Awasiri Rita Ndonue, ; Usami, Davide Shingo; Persia, Luca - 04c Atto di convegno in rivista
paper: TRANSPORTATION RESEARCH PROCEDIA ([Amsterdam] : Elsevier B.V.) pp. 1-8 - issn: 2352-1465 - wos: (0) - scopus: (0)
conference: AIIT 4th International Conference on Transport Infrastructure and Systems (TIS ROMA 2024), 19th - 20th September 2024, Rome Italy (Rome)



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L'elenco e le finalità delle attività intraprese dalla Sapienza sono descritte nella pagina dedicata Sapienza per il Pnrr.

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