The following outline shows the result of investigating the present situation of the tracks and permanent ways of Northern Line in accordance with the provided data, survey of permanent way sites, and observation from a traveling train.
Tracks and curves are described by classifying them into the standard constitution and the adjusting maintenance. And common matters closely related to high speed are described as separate items (3.4.5 to 6).
3.4.1 Specifications of track
(1) Gauge1,000 mm
(2) Present track
(a) General sections
The main track is specified as shown below.
(b) Some sections
Are specified differently from the above general sections as shown below.
