Isaac Ndumbe Jackai II

Mr. Isaac Ndumbe Jackai II


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 March 2024 in Preprints.org
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SFStephen Kome Fondzenyuy
Stephen Kome Fondzenyuy
IIIsaac Ndumbe Jackai II
Isaac Ndumbe Jackai II
STSteffel Ludivin Feudjio Tezong
Steffel Ludivin Feudjio Tezong
DUDavide Shingo Usami
Davide Shingo Usami
BGBrayan González-Hernández
Brayan González-Hernández
Luca PersiaLuca Persia
Luca Persia
The transition to sustainable mobility is a recognized socio-economic and environmental challenge, particularly among young adults in low- and middle-income countries (LMICs). This paper addresses the lack of comprehensive research on mobility patterns for LMICs by examining the travel patterns of students, staff, and lecturers at the National Advanced School of Public Works, Yaoundé (NASPW) to understand transport mode choices and barriers to the use of public and active transport modes. Data was collected through online questionnaires from 425 participants. Findings revealed that most students (27.5%) used multiple modes of transport, with moto-taxis being the most common (21%). Lecturers primarily used private cars (50%), while staff relied on taxis or multiple modes (33%). Accessibility, vehicle speed, and flexibility appeared as the most important reasons for the preferred modes of transport. Barriers included long waiting times and traffic congestion for public transport, and distance and inadequate infrastructure for active mobility. The usage of public transportation was encouraged by its affordability and reduced travel time, whilst active options were preferred due to their cost savings and health benefits. To promote sustainable mobility for campus travel, it is crucial to encourage active modes, develop mass transport systems, and raise awareness through symposiums and conferences among students and staff.

13 March 2024 in Preprints.org
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Preprint
Open access
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STSteffel Ludivin Feudjio Tezong
Steffel Ludivin Feudjio Tezong
TDTchaheu i Tchaheu Dimitri
Tchaheu i Tchaheu Dimitri
SFStephen Kome Fondzenyuy
Stephen Kome Fondzenyuy
IIIsaac Ndumbe Jackai II
Isaac Ndumbe Jackai II
DUDavide Shingo Usami
Davide Shingo Usami
Luca PersiaLuca Persia
Luca Persia
In Yaoundé, Cameroon, where walking is a leading transport mode, pedestrian safety remains an issue as they account for a fair share of road traffic casualties, partly due to the lack of walking policies and data on pedestrian facilities safety, hindering targeted intervention. This study investigated road segments using the Pedestrian Safety Index (PSI) and the Global Walkability Index (GWI) across 12 key roads frequented by diverse pedestrian groups, especially students. The indexes were graded from E to A and analyzed using description and rank correlation analysis. Only one segment (R7) achieved a grade C, while the remainder scored D or E, indicating poor pedestrian safety conditions and unpleasant walking experience. The strong correlation coefficient (0.69) between the PSI and GWI at a 99% significance level validated the safety assessment, providing confidence in the safety results. Leveraging these findings, a seven-year (2024-2030) safety strategy was developed aiming to upgrade all roads to grade B. This strategy contains interventions including engineering improvement, proven effective. The study offers evidence for city officials to improve pedestrian safety and informs walking policies development and upcoming projects implementation. Future research should include more road segments and validate indexes with crash or conflict data.