摘要：This paper evaluates the spatial spread of road along the study route for the period of 2007-2010 with a view to bring to lime light the environmental factors of road transport accidents in the study area. Also, the entire study route has been segmented into three; Kaduna- Katabu (km18.41),Katabu- Jaji (km17.02) and Jaji-Zaria (Km38.51). Spatial data were generated from the field, satellite imagery and previously generated road accidents data from the Federal Road Safety Corps (FRSC) and Nigeria Police Force (NPF) along Kaduna–Zaria express way of Kaduna State. The results partly revealed that Rigachuku, National Teachers Institute (NTI), Tollgate and Maraban Jos (Katabu) have recorded high frequency of Road Traffic Accidents (RTA) along Kaduna-Katabu especially in 2009 and 2010. To reduce these accidents to barest minimum, it is here, recommended that the degree of bends on Kaduna-Zaria expressway should be minimized through appropriate engineering designs by the Federal Ministry of Works.
关键词：Spatial Data; Segment; Crash; Significance difference; Menace of RTAs
