Abstract
We attempted to apply the aerial photo to the traffic current analysis at NAGASAKI.
Photos were taken continuously during the helicopter had hovered over a crossing. The first step of analysis, tracked every vehicles which had been in subject area.
The second, measured their vector by means of coordinategraph. Above data were processed by the electronic1 computer. The result of this attempt, could obtained microscopic patterns of traffic current at the crossing.
The followings are main features of photographings,
1, The time of a continuous exposure. 6 minutes
2, Exposure interval 6 seconds
3, Camera NIKON-F with moter drive # 250
4, Aircraft ALOUETE II
5, Flight altitude 750m
