Road infrastructure is set to be a catalyst to urbanization and development in Sub-Saharan African towns. This article hypothesises that the Bamenda-Mamfe highway has contributed to the urban growth and development of Mamfe. The paper reveals that spatial growth, socio-economic development and trade of Mamfe town have been triggered by the highway. A multi-spectral Landsat satellite imagery of 1986 and 2020 were used to determine the spatial expansion of the town over a period of 34 years. Some 110 questionnaires were administered to households of 7 neighbourhoods in Mamfe to determine the outcome of expansion. Field observation and interview sessions were done to have information on the socio-economic development of the town. An in-depth secondary data collection was done to gather information on the rate of population growth in Mamfe. The data was processed to generate maps through the ArcGIS 10.4 and MapInfo soft wares and tables through SPSS 17 for results and analyses. Results from findings propound a rapid increase in the spatial expansion of Mamfe instigated by the construction of road as the urban space increased from 21% in 1986 to 59% in 2020. This was accompanied by a population upsurge of 119,000 inhabitants from 18,000 in 1987 to 137,000 inhabitants in 2020. There has been a remarkable increase in trade and commerce influenced by the construction of the road as people and goods can move in and out of the town with ease. The socio-economic development of Mamfe has as well improved with the presence of commercial centres, schools and health units. The development of Mamfe is however faced with planning challenges and urban ills which might escalate if not controlled. This paper recommends that stringent majors are taken to implement planning and proper security in Mamfe with the hope to render the town sustainable for living.
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