Daylighting (tunnels)
id:
daylighting-tunnels-172-417265
title:
Daylighting (tunnels)
text:
Daylighting a tunnel is to remove its "roof" of overlying rock and soil, exposing the railway or roadway to daylight and converting it to a railway or roadway cut. Tunnels are often daylighted to improve vertical or horizontal clearances—for example, to accommodate double-stack container trains or electrifying rail lines, where increasing the size of the tunnel bore is impractical.
brand slug:
wiki
category slug:
encyclopedia
description:
Removing the "roof" off a tunnel
original url:
https://en.wikipedia.org/wiki/Daylighting_(tunnels)
date created:
2009-03-10T06:52:21Z
date modified:
2024-09-01T16:14:45Z
main entity:
{"identifier":"Q5243240","url":"https://www.wikidata.org/entity/Q5243240"}
image:
fields total:
13
integrity:
15