A GIS Highway Safety Analysis and Prediction Tool Mohamed Arafa Student, Egypt Email: moarafa@aucegypt.edu This paper is part of a thesis for the author’s Master degree at the Faculty of Engineering, Cairo University. Using traditional methods, collecting data with a pen and paper is somehow a hassle plus important data items about the accident characteristics could be forgotten, and would then be difficult gathering after leaving the accident site. Through the newly developed handheld devices integrated with GPS technology, it’s now easy collecting field data, then sending it to desktop computers for further analysis and manipulation. Of course the accuracy and time saved is quite clear when compared with paper work. These handheld devices, also known as PDA’s , could as well be mounted in a police car’s dashboard near its radio transmitter. This study presents a GIS tool that takes advantage of the new PDA’s. Yet to gain, statistical models are implemented that predicts accident potential according to any modifications in roadway characteristics and then displayed on a GIS map. The models can greatly influence the choices made by decision makers. Our work area focused on a sample of the Egyptian road network. Further more, the analysis tools are developed through a user-friendly interface that aids transportation engineers involved in safety matters. The tools provide an organized and understandable view of the persisting problem. Hopefully contributing in the fight for safety on roads.