However, supporters point out that at no point does the current line infrastructure fall below a radius of, and that minimum clearance up to the helical tunnel is a minimum of, well in accordance with modern secondary-line criteria.
12.
At the points where the lines passed directly beneath the actual border, concrete " collars " were constructed within the tunnels with just the minimum clearance for trains, to prevent people clinging to the sides or roof of the coaches.
13.
In September 1931, for the electrification of the railway line from Stuttgart to Augsburg via Ulm, the tracks are lowered below the Zingler, Neutor and Wallgraben bridges as the minimum clearance height had to be increased by 1.2 metres for the installation of the overhead line.
14.
I agree that Minimum clearance in the fit is the difference between the maximum size of the hole and the minimum size of the shaft seems to be a lazy cut and paste . perhaps they just meant maximum . talk ) 06 : 34, 10 January 2017 ( UTC)