On Tue, 2 Sep 2008 09:52:30 -0400, "Don Phillipson"
Post by Don PhillipsonWhat does it mean that a road runs online / offline?
Does it mean that the road is inside / outside the road system (eg. there
are junctions / there are no junctions with other roads)?
So far as this is either engineering or mapmaking jargon,
you must consult the source of the jargon. It has no obvious
meaning in everyday English.
There is an example of this use at:
http://roadimprovements.roadsni.gov.uk/index/futureschemes/a2_buncrana_road_londonderry_pennyburn-skeoge.htm
or http://tinyurl.com/6atnsu
This is a proposal for increasing the traffic-carrying capacity
of an existing road.
It is clear that the "line" in "offline" and "online" is the
line of the existing road.
Widening the existing road would be an "online" development.
Changing the route of part of the road would be an "offline"
development.
From the webpage:
Pennyburn Roundabout and Springtown Road — three possible
routes were examined:
* Red Route: widening the existing road to provide two lanes
of traffic in each direction.
* Blue Route: a new 2 lane road off-line from Pennyburn Pass
to Springtown Road carrying country bound traffic and the
existing Buncrana Road from Springtown Road to Pennyburn
Pass carrying city bound traffic.
* Purple Route: new 4 lane road off-line from Pennyburn Pass
to Springtown Road, with the existing Buncrana Road from
Pennyburn Pass to Springtown Road becoming a local street
providing access to houses and businesses.
Springtown Road to Skeoge Roundabout — one possible was
examined:
* Orange Route: widening the existing road to provide two
lanes of traffic in each direction.
Skeoge Roundabout to the Border — one possible route was
examined:
* Navy Route: online dualling by building a new carriageway
alongside the existing road. Also includes a new
roundabout at Elagh Business Park providing connections
north east to the business park, south west to Coshquin
Road and north west to the Border.
The Blue Route is shown in this image:
Loading Image...
The traffic in one direction uses the existing 2-lane road. A
new, offline, 2-lane road (below the existing road in the image)
carries the traffic in the opposite direction.
--
Peter Duncanson, UK
(in alt.usage.english)
