94. Data Model Centered Road Maintenance Support System Using Mobile Device

Maintenance management is an essential operation that should be carried out effectively for maintaining, repairing, and rehabilitating highways and roads. It is necessary to accumulate information produced during the entire life cycle of roads in order to analyze problems and find solutions within a temporal sequence and to maintain them strategically and effectively. The primary objective of this study is to solve above problems on road maintenance and maintain the road efficiency. This paper proposed a road maintenance support system based on product data model using mobile devices. Product data models enable the exchanging and sharing of road information among those involved in road maintenance. The system consists of two use cases: in office and on site. In road administrator’s office, the system is based on two-dimensional paper-based maps and three-dimensional printed models output by a three-dimensional printer. It supports the discussion of maintenance plans and enables sharing the maintenance plan and existing inspection results by using photographs from tablet computers and smartphones in combination with radiofrequency identification (RFID) tags. The system accumulates the photographs of notes and supports referring to them on-site using RFID, QR codes, and a global navigation satellite system. This system consists of two parts: a method of indicating important inspection points on-site by using AR markers, and reference management of inspection and rehabilitation data by using RFID and QR codes. The proposed system was evaluated the usability and capability. The evaluation results indicated usability and capability on site usage.