Citation

Olusina J, Ajanaku WA. J. Appl. Sci. Envir. Manag. 2017; 21(2): 397-403.

Copyright

(Copyright © 2017, Nationally Co-ordinated Research Projects (NCRP), Faculty of Science, University of Port Harcourt)

DOI

unavailable

PMID

unavailable

Abstract

This study is based on evaluation of various factors that cause road accidents in Lagos Metropolis. Fourteen (14) factors/drivers were identified which tend to influence an occurrence of accident on Lagos roads. In order to study the pattern of accidents in the Metropolis, several different spatial and non-spatial datasets were collected, processed and analysed. Weighted Severity Index (WSI) was created based on these factors/drivers. Also, Density-based Clustering for Traffic Accident Risk (DBCTAR) was carried out to assist in ascertaining the distribution of Black Spots Severity (BSS).

RESULTS obtained include: shortestpath analysis, service area analysis, accident spot severity and vulnerability level across the Metropolis based on the Weighted Severity Index (WSI). The study reveals that, accidents are not always caused as a result of bad roads but by the smoothness of roads such as expressway with accident spots distance band of 300m-500m and 3.6% of the accidents is as a result of pedestrians avoiding the use of pedestrian bridges/aid even when they are available.

Key Words: Accident Spots, Weighted Severity Index (WSI), Vulnerability, Pedestrians, Transportation.

Language: en