ABSTRACT
Traffic problems are increasing by the day. In Abuja, where the travel demand and the travel density are high, traffic creates numerous problems such as traffic congestion; traffic jam, and delays among others. ? Application of Global Positioning System (GPS) and Geographic Information Systems (GIS) in management of highway systems is now well established. They are powerful tools for the analysis of both spatial and non-spatial data and for solving important problems of networking. Methods for implementing GPS-GIS as useful tools for management of traffic congestion were developed and examples of decision making applications are provided. A Traveler Information System (TIS) which provides solutions to traffic congestion in the study area in three ways was developed; first by providing transport planners in road controlling authorities with Traffic data (Speed, Level of Service, Travel and Delay time) to better understand congestion, assess its causes and target investment to where there is the most need., secondly traffic information which enables commuters and motorists to take rational decisions as to which route (less or non- congested or the fastest route) to take during peak hour travel. And thirdly to evolve queries that can evoke graphical response, which could be used to tackle traffic congestion in the study area. The research demonstrates the TIS capability in traffic congestion management by way of using available and reliable traffic information to find the fastest route for use when meeting an appointment.