Talk:Tunnel

=Small Edit Note

I edited *The Fredhälls Tunnel in Stockholm, Sweden is busier yet (150,000) but there are probably even more busy tunnels to*The Fredhälls Tunnel in Stockholm, Sweden is busier yet (150,000) because it was unverfiable and thefore invalid by the rules of Wiki.--WngLdr34 01:27, 12 November 2006 (UTC)

Wartime Tunnels

I suppose someone intended to fill in this section, then forgot about it...I'm inclined to remove the section since in its current form, it is not that informative, but maybe someone else wants to have a go at adding some information :P -- Ferkelparade π 19:12, 16 Aug 2004 (UTC)

As mentioned above, I removed the following section:

==Wartime tunnels==

• Castles, sappers
• trench warfare: Crimea, US Civil War, WWI
• Germany WWII, V2 factories, slave labor
• North Korea, infiltrators, midget subs...
• Japan, Corregidor, etc. (Neal Stephenson's Cryptonomicon?)
• Vietnam, tunnel rats ("Platoon"?), spider holes
• Cold War: nuclear bunkers, etc.

The section does have some potential, but in its current state, it is totally useless :p If anybody wants to have a go at expanding it to something useful, I can see it growing into something pretty interesting, but a simple to-do-list with lots of question marks does not really belong in an article. -- Ferkelparade π 09:49, 20 Sep 2004 (UTC)

Oldest?

As of early August 2005 the article says the oldest tunnel is the Saperton. The Romans built aqueducts in tunnels 2000 years ago. And there were even older underground water conduits in mesopotania. -- Geo Swan 14:19, 10 August 2005 (UTC)

Woops, that wasn't the intention. The sections are merely a means of categorizing notable tunnels based on what is notable about them, other than that they are someone's favorite tunnel in the country of choice. I've renamed the one in question.

If you feel it is noteworthy, please consider adding the above information to the list. Davilla 18:55, 16 August 2005 (UTC)

Additionally it would appear that the Babalonyians built a tunnel under the Euprhates River c. 2180 B.C. see www.answers.com/topic/tunnel --Bgrainger 23:31, 4 October 2006 (UTC)

This claim also made in NY Times on 1990-12-02, and at [1], [2] and [3], although the later has a comment "every reference I have found to date seems to stem from this article". Open4D (talk) 18:46, 31 August 2008 (UTC)

Taiwan Straits tunnel?

The Jingtai Expressway article reports that plans are under consideration for a road link between Beijing and Taipei, including a possible tunnel under the Taiwan Straits from the Chinese mainland (likely Fujian province, according to the article). If this is confirmed, surely it might be notable on the topic of tunnels. --Dpr 16:25, 5 September 2005 (UTC)

Longest?

I suggest we remove the listing of the St. Gotthard Tunnel from the list of the longest tunnels, as there is already a longer road tunnel listed. --ZorroIII 22:52, 5 November 2005 (UTC)

Fixed links across planned elsewhere?

Can anyone add more info on the possible plans of contructing a tunnel and/or bridge across to the other side elsewhere? I am quite curious as to whether any steps have been taken to decide to build infrastructure links across the:

• Strait of Messina
• Fehmarn Belt
• Cook Strait
• Palk Strait
• Strait of Tartary
• Irish Sea
• Strait of Bonifacio
• Surigao and San Bernardino Straits
• Hainan Strait
• Strait of Georgia
• Kvarken
• Chacao Channel
• Strait of Magellan
• Bering Strait

Anyone with inside knowledge on any of these? I've posted similar requests elsewhere. Gruesome Twosome! 8v] //Big Adamsky 10:03, 13 January 2006 (UTC)

The tunnel experience

Wanted to insert the following, but the current article is not yet receptive for history/social sciences. "In Victorian times, it was anticipated that going through a dark tunnel in a train at high speed (30 mph) would be such a shocking experience that people would come out the other side irreversibly damaged." --Brz7 22:06, 25 August 2007 (UTC)

Need for economics comparison section

This article could be made more useful to those studying transportation systems if it included a section detailing tunnel economics versus economics of other transport systems such as surface roadways, surface trains, elevated railways, etceteras... Several cities have had costly underground commercial transportation tunnels built (e.g. London Post Office Railway and the very lengthy Chicago Tunnel System) that subsequently closed due to poor economics. What changed between conception, construction and closure? Were the original economic analysis faulty, did other transportation systems become more cost competitive, or did the original tunnel system contract customers cease operations (such as discontinuation of coal deliveries in Chicago after the advent of gas heating)? In an increasing congested urban environment such economic analysis would benefit those studying, planning or implementing urban transportation systems. 206.47.191.132 (talk) 16:21, 11 December 2007 (UTC) Zoomeri

Railway tunnel creation?

'Railway tunnel' and 'Rail tunnel' should not redirect to this article. They should have their own article. For example, Channel Tunnel. 'Tunnel' is too broad. WinterSpw (talk) 16:15, 23 March 2008 (UTC)

I don't see the need. Bridges and tunnels can be classified many ways, including age, continent, type of barrier crossed, materials, size, and traffic carried. The way this article classifies them is by construction method, and each type is used for more than one kind of traffic. There's no more need for a separate narrative about rail tunnels than for one about South American tunnels or road tunnels or stone bridges or 18th century bridges or tunnels between 5 and 10 meters wide. At most, someone might seek mere list articles, broken down in these various ways. Jim.henderson (talk) 13:54, 29 March 2008 (UTC)

Multiple tunnels

This source [4] suggests it's becoming cheaper to build multiple thinner tubes rather then one thicker tube. Probably should be added to the article, if more sourcing can be found Nil Einne (talk) 20:16, 21 April 2008 (UTC)

Definition

Some civic planners define a tunnel as 0.1 miles (0.16 kilometers) in length or longer, while anything shorter than this should be called a chute.

This isn't sourced and it isn't clear how wide spread this definition is. Given that the definition is rather adhoc in any case, it seems more likely to me that someone in a country where metric predominates would use some like 150 metres or 200 metres rather then 160. Nil Einne (talk) 20:22, 21 April 2008 (UTC)

Is a tunnel a bridge?

I don't mind any WikiProject taking an interest in any article however tenuous the relation between the project and the subject matter at hand. So for WikiProject Bridges to adopt this article I have no objection. It's a little odd, that's all. However, for the article itself to be categorized into Category:Bridges I am concerned, and all the more so since there is not one word in the article which discusses this. If there is a tradition among architects and transportation planners to define a tunnel as a bridge, then that must be detailed and documented. If not, the category should not include this article.

I became aware of this situation as I was attempting to see if a tunnel could be categorized by year of opening. If the above connection can be made, perhaps it would be prudent to rename the Category:Bridges by date to Category:Bridges and tunnels by date? __meco (talk)

I only tagged it because of the categorization. I will note, however, that there is no firm line between the two; a cut-and-cover tunnel, for instance, can be considered a bridge, as can a tunnel through a huge railroad fill. --NE2 15:47, 16 August 2008 (UTC)

Non-human tunnels?

What about tunnels made by other creatures such as spiders, rabbits, moles etc? This seems solely dedicated to human-engineered tunnels. --Irrevenant [ talk ] 12:34, 9 November 2008 (UTC)

Removed from list

Moved these here because I fail to see how they're notable. Probably should have deleted them outright but I'm not logged in. 67.9.175.207 (talk) 20:01, 7 December 2008 (UTC)

• The Sydney Harbour Tunnel in Sydney, Australia was built in 1992 to augment the Sydney Harbour Bridge.
• The Clyde Tunnel in Glasgow, Scotland, connects the districts of Whiteinch and Govan in the west of the city.