Leica Captivate, Техническое справочное руководство

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Method 2 - A definition using relative height distances
This method uses height differences relative to the vertical alignment to define
the height of the left and right rail.
Rail_003
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b
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f
a Track centreline
b Left rail
c Right rail
d Nominal gauge
e Superelevation base
f Left superelevation (left cant)
g Right superelevation (right
cant)
43.6.10 Rail - Working with Multiple Tracks
Multiple tracks are used when more than one track share a common centreline,
from which all chainages are calculated.
When there are multiple tracks with independent centrelines for each track,
each track is then considered as a single track. Refer to "43.6.9 Rail - Working
with a Single Track" for details on single tracks.
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a
f
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c
d
Rail_004
a Chainage centreline
b Left track centre ine
c Left track left rail
d Left track right rail
e Right track centreline
f Right track left rail
g Right track right rail
Rail_005
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a
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Description
Diagram - Plan
Diagram - Section
696 Roads - General