Light Rail Systems - On street running in tunnels

Junior

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A question for light rail system trivia gurus....
  • Globally there are a huge number of light rail, metro and tram systems.
  • Of those systems there is a broad mixture of track types, e.g. ballasted track, direct fix slab & embedded track for on street running.
  • For ballasted and slab track there are examples of track in long (e.g. underground) and short tunnels (e.g. converted heavy rail corridor) ie no access to road vehicles.
  • For on street running there are examples of segregated operation and mixed operation where road vehicles share the LRV / tram transit space (though hopefully not at the same time!)
The question is whether anyone is aware of examples of mixed operation through tunnels or on bridges?

Answers on postcard and gratefully received!

Thanks in advance.
 
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AM9

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In Prague there's a shared road/tram tunnel under Vysehrad Rock, along with numerous bridges around the city.
The Vysehrad Rock tunnel at 35m long is really no more than an elongated bridge through a rock that reaches the shore of the river. The road's surface and layout doesnt change from that on either side apart from some narrowing, (as it was built to meet the requirements of over 100 years ago).
 

MarkyT

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The Downtown Seattle Transit Tunnel in the State of Washington, USA opened for trolley buses only in the 1990s, then was used for mixed running with light rail vehicles for around a decade. In 2019, it became light rail only. The Mount Washington Transit Tunnel in Pittsburgh, Pennsylvania, originally opened in the 1970s, is the only tunnel in the United States to operate both bus and rail services currently. Across the world there must be many hundreds of bridges carrying street tramways over rivers and canals, with many quite short and possibly unnoticed by passengers.
 
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MadMac

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Example that immediately comes to mind is First Street in Los Angeles. Two tracks up the middle with two lanes of road either side. The bridge was widened specifically for this.
 

jopsuk

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The Coast Tram in Belgium runs mainly in its own right of way (often the median of the road) but at Oostende and Zeebrugge there is mixed traffic street running to cross the sea locks- these are interesting points, as each lock has two opening bridges, one at each end, allowing trams and traffic to keep moving during lock operations
 

Junior

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The Downtown Seattle Transit Tunnel in the State of Washington, USA opened for trolley buses only in the 1990s, then was used for mixed running with light rail vehicles for around a decade. In 2019, it became light rail only. The Mount Washington Transit Tunnel in Pittsburgh, Pennsylvania, originally opened in the 1970s, is the only tunnel in the United States to operate both bus and rail services currently. Across the world there must be many hundreds of bridges carrying street tramways over rivers and canals, with many quite short and possibly unnoticed by passengers.


Ooooh! Mt Washington Tunnel is a beauty! The perfect example...

Thank you all for your replies - some interesting examples cited.
 

Geeves

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Theres a fairly long tunnel on the Pittsburgh light rail that is used by both trams and buses. I think it was for cars too at one point.
 

themiller

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Manchester. The trams share a bridge over the Rochdale canal with road traffic between Piccadilly Gardens and Piccadilly Station although traffic is controlled by traffic lights so trams don’t mix with buses etc.
 

Ianno87

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Manchester. The trams share a bridge over the Rochdale canal with road traffic between Piccadilly Gardens and Piccadilly Station although traffic is controlled by traffic lights so trams don’t mix with buses etc.

The Eccles line has a bridge over the Weaste freight branch on the stretch with general traffic on the A57.
 

D841 Roebuck

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Manchester. The trams share a bridge over the Rochdale canal with road traffic between Piccadilly Gardens and Piccadilly Station although traffic is controlled by traffic lights so trams don’t mix with buses etc.
Just before the terminus at Rochdale Town Centre the Metrolink crosses the River Roch on a very wide bridge which is shared with road traffic.
 

Ianno87

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Just before the terminus at Rochdale Town Centre the Metrolink crosses the River Roch on a very wide bridge which is shared with road traffic.

It's single track for that short section due to the limited strength of the culvert structure.
 

Re 4/4

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Zürich Hardbrücke is an example of a mixed tram/road viaduct crossing a heavy rail line and station - the tram stop is directly above the rail one at right angles. I think the viaduct even has all of tram, cars, bus and trolleybus.

The project for a tunnel to replace the Rosengarten crossing further down would have created a mixed tram/road tunnel I think, but it was voted down.

Edit: google link: https://www.google.com/maps/@47.3855234,8.5175125,19z/data=!3m1!1e3
 

themiller

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I know it was never built as a mixed traffic bridge but the original plan for the bridge over the Dornoch Firth would have seen traffic lights either end of the bridge to stop road vehicles whilst trains crossed.
 

Gag Halfrunt

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If heavy rail can be included, the Sino-Korean Friendship Bridge carries road and rail traffic between Dandong in China and Sinuiju in North Korea. It was built as a road bridge next to the existing railway bridge. However, during the Korean War the US Air Force bombed both bridges on the North Korean side. The ruins of the railway bridge on the North Korean side were demolished after the war, but the Chinese half still stands, now called the Yalu River Broken Bridge. The road bridge was repaired and the railway rerouted over it.

The Chinese government has built the New Yalu River Bridge for road traffic, but it remains unused because North Korea has not completed roads or border facilities.
 

plugwash

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If heavy rail can be included, the Sino-Korean Friendship Bridge carries road and rail traffic between Dandong in China and Sinuiju in North Korea. It was built as a road bridge next to the existing railway bridge. However, during the Korean War the US Air Force bombed both bridges on the North Korean side. The ruins of the railway bridge on the North Korean side were demolished after the war, but the Chinese half still stands, now called the Yalu River Broken Bridge. The road bridge was repaired and the railway rerouted over it.
At least from the Picture on wikipedia it looks like the track runs alongside the roadway rather than embedded in it.

The Anton Anderson Memorial Tunnel in alaska on the other hand does have the rails embedded in the roadway.
 

apk55

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Connel Ferry bridge in the Scotish Higlands was also used by road and rail. The bridge was closed to road traffic when an infrequent train wanted to cross. As it is narrow there was only single way working for cars as well. The railway has since closed but the bridge is still in use.
 

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