ABSTRACT
Nigeria experiences the highest rate of road traffic accidents resulting in fatalities and various levels of injuries. On Abuja-Lokoja road, traffic accident takes the lion's share of the risk having highest number of vehicular accidents withcorresponding fatalities and injurieswhich has a great impact on cost and the socio-economic development of the society. It is therefore necessary to gauge the monetary value of these losses in order to highlight the extent of damage incurred to society as a whole. This research is focused on using Gross-Output Model or Human Capital Approach to compute the cost of traffic accident on Abuja-Lokoja road. The aim of this research is to formulate a model that can be used for estimating the total cost of road accidents at all levels of severity. The extent of injury levels, property damaged and general cost resultingfrom an accident using secondary data were obtained from thePolices, Research and Statistics department of the Federal Road Safety Corps (FRSC) for a period of eleven years (2000-2010).The research was carried out with the aid of questionnaires and interview. The data collected were analyzed using the percentage frequency distribution table and the result was used to cost the property damage cost and the medical cost. The accident cost was decomposed and quantified based on the accident severity levels.The cost per fatal accident isN 24, 853, 524, the cost per of serious injuries accident isN633.520, and the cost of per minor accident isN 10, 575. 36, the total human cost isN 55, 714, 330,477, the total properties cost isN 890, 067, 000, the police administrative cost isN 65, 446, 757. 76 and the total accident cost isN 56,669,844,234.Therefore the cost per vehicle per kilometer is N 60,804.03Km-1, the cost per kilometer is N318,369,911 Km-1for Abuja-Lokojaroad. This result is in agreement with other researches carried out using gross output method.