Abstract
Recently queuing problem in the outpatient department of the hospital has been noticed in Japan. For the attempto reduce the waste time by prolonged waiting, fundamental data were collected in the University of Tokyo Hospital.
Every outpatient was followed during his stay at the hospital and the waiting time was recorded every time he passed the admitting section, examining room, central laboratories and the pharmacy. As the result it was found that main causes of undue crowdimg of patients were the long waiting lines at the admitting section and at the clinical section. The distribution of the arrival time interval at any section was of Poisson type and that of the service time was mostly of Erlang type or constant type. On the basis of these data, queuing system simulation is being carried out to reduce the whole waiting time. The detailed analyses are to be reported in the subsequent paper.
