The collection, management and dissemination of road traffic accident (RTA) related events has posed a serious problem to Nigerian road safety officers and all stakeholders alike. This is especially true because of the absence of a central repository from which all accident related information can be stored and managed. Where available, these information are available in paper based form and this poses a bottleneck in updating the available information. In this study, a Web based Road Traffic Accident Monitoring System (RTAMS) was developed for Nigerian.The Road Traffic Accident Monitoring System (RTAMS) was developed using Adobe Dreamweaver and Notepad++ as the Integrated Development Environments, HTML, CSS and JavaScript were used for the frontend, PHP was used as the scripting language, and MySQL served as the database server. Most of the languages and tools used were open source which ensured that the application would be robust, reusable, cheap and highly scalable.The result of the developed system shows that road safety officers, users, policy makers and all other stakeholders can be able to register, login, submit reports and run queries on information that has been previously entered into the system such as the accidents that occurred on a particular route or the accident in which an identified victim was involved. Policy makers can run these queries in order to take appropriate steps in minimizing road traffic accident occurrences.In conclusion, this system will help create a paperless alternative to the present method of RTA information and thus make information dissemination quicker and also improve first aid response to accident occurrences.