INFLUENCE OF RUNOFF WATER ON THE TRANSPORTATION SYSTEM IN LAGOS STATE, SOUTH-WEST, NIGERIA.

The study examined the Influence of Runoff Water on the Transportation System in Lagos State, Nigeria. The specific objectives are to; examine the effect of Surface runoff on the Transportation System in Lagos State, Nigeria. Evaluate the effect of groundwater runoff on the Transportation System in Lagos State, Nigeria. The study adopts a survey research design. Structure questionnaire and interviews was use to collect primary data for the study. Historical rainfall and groundwater level data will be sourced from meteorological stations and piezometers. The data collected were analyzed using SmartPLS 4.0. And GIS was used to visualize runoff patterns and their effects on transportation infrastructure. The result revealed that Surface runoff has a significant positive effect on the Transportation System with a coefficient of 0.432 and a p-value <0.001. And Groundwater runoff has a significant positive effect on the Transportation System with a coefficient of 0.394 and a p-value <0.001. In Lagos State, Nigeria. The study concluded that Runoff Water significant influence on the Transportation System in Lagos State, Nigeria. The study recommended that government should Implement an integrated approach to water management that combines both surface and groundwater runoff strategies