Efforts are underway in Japan to promote "Smartway" next-generation roadways, which provide a variety of services through the use of advanced ITS technologies. In recent years, the National Institute for Land and Infrastructure Management (NILIM), part of the Ministry of Land, Infrastructure, Transport and Tourism (MLIT), has conducted public-private joint research on next-generation road services using ITS technologies. Field operational tests (FOTs) of services including forward obstacle information provision and merging assistance using 5.8 GHz dedicated short range communication (DSRC) were conducted on the Tokyo Metropolitan Expressway through FY2007. In FY2008-2009, FOTs were conducted in three major metropolitan areas-Tokyo, Nagoya, and Keihanshin (Kyoto, Osaka, and Kobe)-to promote future deployment nationwide. These included tests of information provision services to alert drivers to forward obstacles hidden beyond the crest of an incline and prevent excessive speed on sharp curves. This paper presents an overview of these FOTs conducted by NILIM in recent years and their results.

Developed a total system of as-built management of road earthwork as construction management process using information technology. A total system of as-built management is consisted of the total station with construction management data and support software. This system is replaced level and measure. In this paper, support software was improved as a total system of as-built management. A total system is exchanged as-built work management data. The as-built work management data was made as document. A total system of as-built management was used at six construction fields this year. キーワード：道路土工，出来形管理，トータルステーション，データ交換標準．

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