Korea twice in one year - November 2022 - Page 6 - 506

A unique opportunity to photograph the track geometric inspection car. I kind of thought these were obsolete, bullet trains are effectively all doing this all the time, measuring the distance between the tracks, temperature, height, wear etc by analyzing data from the train wheels. I read a whole thing about it in relation to the Chinese network.

Camera Details: RICOH IMAGING COMPANY, LTD., RICOH GR III
Settings: 1/800 at f/6.3, ISO 200, 18 mm
Date: 18 November 2022 Time: 13:12:13