Influence of Driver Behavior on Fuel Efficiency in Intercity Buses: A Simulation-Based Study of the Yaoundé-Douala Corridor in Cameroon

Franck Landry Bayi Boumal; Ahmed E. Aboud; Sernin Banza Mwanabute; Josepha Fansi Nguietchuan; Jefferson T. Banquando

doi:10.54097/318gcm24

Authors

Franck Landry Bayi Boumal
Ahmed E. Aboud
Sernin Banza Mwanabute
Josepha Fansi Nguietchuan
Jefferson T. Banquando

DOI:

https://doi.org/10.54097/318gcm24

Keywords:

Driver behavior, fuel economy, intercity buses, eco-driving, Cameroon.

Abstract

This study examines the influence of driver behavior on fuel efficiency in intercity buses along Cameroon’s Yaoundé-Douala corridor, a critical route in a fuel-import-dependent transportation sector. Using a combination of real-world driving cycle data and GT-SUITE simulations, we analyzed the fuel consumption of a 70-seater Mercedes Benz Actros 2031 bus under varied driving patterns. Findings indicate that aggressive driving behaviors, characterized by delayed shift timing, aggressive acceleration (0.476 m/s² in MD5 cycle) and abrupt braking, increased fuel consumption to 49.8 L/100 km, while smoother driving (0.396 m/s² in SD3 cycle) and proper shift timing achieved 40.6 L/100 km. Gear-shifting patterns and Brake Mean Effective Pressure (BMEP) analysis revealed that optimal engine operation and timely gear transitions significantly enhance efficiency. Despite the route’s infrastructural challenges, such as variable road grades, eco-driving practices offer substantial fuel savings. However, the study’s small driver sample and single-route focus limits generalizability. We recommend eco-driving training, real-time feedback systems, and multi-regional studies to develop tailored interventions for Cameroon’s diverse driving conditions, contributing to economic and environmental sustainability in developing economies.

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