赤あか線せん

noun

red line

Literal red line drawn on a map, document, or surface.

• 地ち図ずに赤あか線せんを引ひいてルートを示しめした。

  I drew a red line on the map to show the route.

noun

red-light district

Historical abbreviation of 赤線地帯; refers to districts marked by a red line on police maps, associated with prostitution. Now a historical term.

See also: 赤線地帯

• 戦せん後ご、赤あか線せんと呼よばれる地ち域いきが各かく地ちに存そん在ざいした。

  After the war, areas called red-line districts existed in various places.

noun

non-legal public road

A road shown by a red line on cadastral maps; not legally recognized as a public road, and sometimes no longer physically exists. Related to 法定外公共物.

See also: 法定外公共物

• この土と地ちの境きょう界かいには赤あか線せんが記しるされている。

  A red line is marked on the boundary of this land.