We have been researching improvements to the efficiency of railway maintenance work through the application of mobile Internet technology. This report gives an outline of the current research results and introduces the accident report system we have developed. With this system, hand-drawn rough sketches, voice memos and photographs related to an accident can be transmitted directly from the accident site through a wireless communication medium such as PHS. Moreover, such information can be readily accessed for the preparation of accident reports, resulting in a more streamlined accident reporting process.