抄録
The rapid transit railway network in Tokyo consists of thirteen lines.This network in based on a conception at the dawn of a new age before 1945 when the developrent plan of five or seven subway lines was fomed.
This article enurerates chronologically the charge of the develognent plan for rapid transit railway network in Tokyo and private plans based on researches and investigations of pioneers at the dawn of a new age from 1906 to about 1940, describing the background of those days in the conception.
