ABSTRACT
This chapter shows how information technology services have developed in recent years, and are spreading in Japan. With the diffusion of the Internet from the middle of the 1990s, information technology services using the Internet have greatly increased in Japan. We can map the short-term changes in the location of information technology services by surveying these convenient data updated every half year. In Japan, the Ministry of Land, Infrastructure and Transport (MLIT) has conducted surveys using the Nippon Telegraph and Telephone Corporation (NTT) telephone directory data in order to chart the nation-scale trend of information technology services. About 20 per cent of information technology services in Japan are grouped within the CBD and sub-centers of Tokyo. Using the results of the survey conducted by MLIT, we can show how many information technology service establishments are located within a 1km radius of the main railway stations.
