To meet this challenge, the Indian Railways has installed a fog safety device in trains to assist drivers tackle poor visibility due to thick fog during the season. Visibility test object placed at railway stations. When such a condition is declared, a fog signal is registered and the time when the condition was declared is recorded. Once the visibility test object comes within sight again, fog conditions are withdrawn. Speaking about train crews, Gangal said that foggy conditions might cause the crew to miss signals due to impaired visibility.

Source: Hindustan Times December 26, 2020 06:00 UTC