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.
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Tags: Behavioural Factors, Crash, Driver Age, Driver Inattention, Driving Under the Influence, Elementary Forecasting, Environmental Related Factors, Fatigue/Sleep, Highway, Horizontal Curves, Lane Width/Shoulder Width, MAD, MAPE, Mechanical Engineering-Thesis-2013, Mechanically Related Factors, MSD, Multiple Regression Analysis, Multiple Regression Analysis -Independent variables (Awka-Enugu), Multiple Regression Analysis-Independent variables (Bridgehead), Onitsha)., Production Moment Correlation, Rear-End Collision, Road Traffic Crash-RTC, Roadway Related factors, RTC Trend Analysis (Bridgehead, RTC Trend Analysis of (Awka-Enugu Expressway), Run-off- Road (ROR) crashes, Seasonal Indices, Seasonal Variation Examination, Social Scientist(SPSS)-Statistical Package, Speed Limit, Time Series, Traffic Volume