Title: Understanding the spatial patterns of tanker accidents in Nigeria using geographically weighted regression
Authors: Moses O. Olawole; Olabisi M. Olapoju
Addresses: Department of Geography, Obafemi Awolowo University, Ile-Ife, Nigeria ' Department of Geography, Obafemi Awolowo University, Ile-Ife, Nigeria
Abstract: Road traffic accidents involving tankers are important causes of death and injury in Nigeria. This study examined spatial patterns and possible determinants of tanker accidents in Nigeria. Secondary data on tanker accidents for the year 2007 to 2010 and other relevant data were sourced from the databases of the Federal Road Safety Commissions of Nigeria and National Bureau of Statistics. The spatial patterns of tanker accidents were mapped using Global and local Moran's I statistics. The data were also subjected to Ordinary Least Square and Geographically Weighted Regression techniques. Findings indicated that tanker accidents vary by state and also revealed an upward trend in the occurrence of tanker accidents. The local Moran's I indicate persistent clustering of tanker accidents in two states throughout the study periods. Factors influencing the patterns of tanker accidents in the country were identified. The study recommends strategies for the avoidance of tanker accidents in Nigeria.
Keywords: accidents; spatial; tanker; OLS; GWR; Nigeria.
International Journal of Vehicle Safety, 2018 Vol.10 No.1, pp.58 - 77
Received: 27 Oct 2016
Accepted: 31 May 2017
Published online: 25 Jun 2018 *