The most obvious issue to arise was determining a track gauge.
The line has a track gauge of ordinary type 1435 mm long.
The line has a track gauge of 1435 mm.
This does not relate to the track gauge of 1435 mm, which is identical on both lines.
Originally, the line had a track gauge of 5-feet, but that was changed to 4-feet, 9-inches in 1886.
The line was built to a track gauge of 3 feet (914 mm).
The track gauge, in both cases, was 30 inches (762 mm).
P4 standards can also used with a track gauge of 21mm.
It is nearly 32 km long and has a narrow track gauge of 760 mm.
This operation is unusual in that it has a track gauge of 42".
