The study examined the effects and the relationship between the nature of the road network system in the Birim Central Municipality and the routine maintenance schedule by the vehicle manufacturers that are to be observed by vehicle owners and drivers. In addition to that, the study was also meant to find out whether the frequent maintenance as a result of the nature of the road network affects the vehicle owners and drivers income generation. A descriptive survey design was used to analyze the study. The population consisted of vehicle owners, drivers and vehicle mechanics (fitters) totaling hundred (100) randomly selected from the municipality. Questionnaires were designed and used to collect the required data for the study. The data was analyzed using Statistical Package for Social Sciences (SPSS v 16).The study revealed that, the area under-studied had bitumen, gravel and earth roads and most vehicle owners and drivers ply on bitumen because of its accessibility, notwithstanding, they intend to perform more maintenance than those plying on gravel and earth roads which was as a result of poor nature that deters most vehicles. Generally, the nature of gravel and earth roads which are mainly found in rural areas are bad and does not receive regular road maintenance. The results obtained from the analysis indicated clearly that, more than GH? 21.00 (61.2%) is spent on weekly maintenance in the area, and this leads to low level of income. Additionally, the results revealed that, the respondents do not refer manufacturer?s manuals when performing maintenance on their vehicles as indicated by 96% of them. The road maintenance in the municipality generally is not the best and this makes gravel and earth roads not accessible and motorable and again promotes frequent breakdowns of vehicles. Based on the findings, recommendations are therefore made for the necessary actions to be taken.