Last Updated
：2025/11/29
ruling gradient
Noun
(rail
transport)
The
steepest
uphill
gradient
in
one
direction
on
a
section
of
railway
line,
which
determines
the
load
that
can
be
pulled
by
one
locomotive
over
that
section,
according
to
the
power
rating
of
the
locomotive.
A
typical
ruling
gradient
could
be
1:50
(2%).
The
ruling
gradient
can
differ
in
the
other
direction
on
the
same
section.
Japanese Meaning
鉄道分野において、特定の区間で一方向の最も急な上り勾配を指し、この数値に基づいて機関車が牽引可能な最大荷重が決定される。一般的には、1:50（約2％）などで表現され、逆方向では異なる勾配となる場合がある。
Sense（1）
(rail
transport)
The
steepest
uphill
gradient
in
one
direction
on
a
section
of
railway
line,
which
determines
the
load
that
can
be
pulled
by
one
locomotive
over
that
section,
according
to
the
power
rating
of
the
locomotive.
A
typical
ruling
gradient
could
be
1:50
(2%).
The
ruling
gradient
can
differ
in
the
other
direction
on
the
same
section.
（ plural ）
Quizzes for review
(rail transport) The steepest uphill gradient in one direction on a section of railway line, which determines the load that can be pulled by one locomotive over that section, according to the power rating of the locomotive. A typical ruling gradient could be 1:50 (2%). The ruling gradient can differ in the other direction on the same section.
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See correct answer
ruling gradient
The locomotive's tractive effort was insufficient to haul the scheduled freight over the ruling gradient, so an extra engine was added.
See correct answer
The locomotive's tractive effort was insufficient to haul the scheduled freight over the ruling gradient, so an extra engine was added.
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