The highway road making aggregates business significantly influences the economy and the environment and it is in the interest of everybody that cost effective utilization of aggregates occur. In addition, the diverse geographical nature of the country posed special problem in ensuring that a system useful to government, and other stake holders was devised. It is also important that information regarding road making material are collected in one control location for easy retrieval of

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... . In this research, the coupling of Geographical Information System and Highway Materials Management (HMM) to form HMIS-GIS is discussed in context of Nigeria. The developed system is composed of spatial database, attribute database and analysis and output modules. Example of application of the system is shown using a case study of Abuja, the Federal Capital Territory (FCT) of Nigeria. The database structure for HMIS was developed in Microsoft Access Database Format. Data retrieval maps, which are basically reproduction of the information stored in the HMIS system, were generated to illustrate the capability of developed system.