INFLUENCE OF VEHICLE VOLUME ON ROAD TRAFFIC CRASHES

AUTHOR: ABITI BABATOLA PAUL

DEPARTMENT: MECHANICAL ENGINEERING

AFFILIATION: NNAMDI AZIKIWE UNIVERSITY, AWKA

The ever increasing pressure on the road traffic flow has resulted in series of fatal accidents and severe injuries, destabilizing a number of families in Nigeria. Hence, this research studied the influence of vehicle volume on road traffic crashes. Two case studies, one located in Awka and the other by the Bridgehead, Onitsha Anambra State were used for this study. The study period covered 3 years in which crash data were obtained for the entire period containing detailed information about the month of road traffic crash(RTC), number of RTC, nature of crash and prevailing causes of crashes among others. The case study factors of RTC in the selected roads were classified under human factors, Mechanical factors, Environmental factors and Roadway factors. Minitab, Microsoft Excel and SPSS software packages were used to analyse the models. RTCdata were subjected to time series analysis. The Model output of multiple regression estimate technique is Y = 0.049 + 1.014X1 + 0.993X2 + O.960X3 + O.950X4 + Ue .The multiple regressions has coefficient of determination R2 of O.990 accounting 99.0% of the variance in road traffic crashes in Awka-Enugu expressway in southeastern Nigeria. Similarly, the model output regression for Bridgehead axis is Y = 0.005 + 1.036X1 + 1.002X2 + 0.898X3 + 0.963X4 + Ue whilethe multiple regressions has coefficient of determination R2 of O.988 accounting 98.8% of the variance in road traffic crashes. The volume of vehicular traffic in December shows high significance value for both axes.

TO VIEW THE FULL CONTENT OF THIS DOCUMENT, PLEASE VISIT THE UNIZIK LIBRARY WEBSITE USING THIS LINK, http://naulibrary.org/dglibrary/admin/book_directory/Mechanical_engineering/11353.pdf

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