EXTENSION OF INFORMATION SYSTEM FORFROZEN ROAD SURFACES ANDITS PUBLIC DEMONSTRATION EXPERIMENT

摘要

There is a growing interest in Intelligent Transport Systems (ITS) that solve traffic problemsefficiently using information technologies. In the inland area of Iwate Prefecture in Japan,frozen road surfaces pose serious problems in winter because of the geographical location.Although road condition information is provided on many Web sites (for example, (1)), theinformation is only provided for fixed and discrete points. The authors have been continuingresearch and development on a continuous-point information system for frozen road surfaces,which obtains information about frozen road surfaces from taxi drivers (2). In the presentpaper, the system functions are extended to include knowledge from an operation test withlimited users in the 2002 fiscal year. The present paper also describes a demonstrationexperiment conducted in the 2003 fiscal winter.