Traffic analysis by means of aerial photogrammetry

Abstract

This report covers a survey planned by The National Capital Region Redevelopment Commission and performed by Pacific Aero Survey Co., Ltd. receiving cooperation from Agency of National Geography of Construction Ministry, Metropolitan Police Headquarters and Kanto-District Construction Bureau.
This survey or analysis of traffic volume utilizing aerial photography is the first trial ever made in the world. Chosen as the survey areas were 5 routes, that is, Ginza Avenue, Showa Avenue, Market Avenue, Hibiya-Kachidokibashi Route and Otesuzaki Route. Aerial photography was taken on September 29, 1961, during rush-hours in the morning and the evening as well as the day-time when there was comparatively light traffic. The aircraft used was Beech-craft C-18S, JA-5031. The aerial camera used was a Wild RC-8, 18×18, f=209.06mm, 450mμ filter and the aerial film was GEVART AVIPHOT Pan-33. The picture scale is 1/6, 000 and enlarged four times to scale of 1/1, 500, for the study of different types of traffic.