Seattle Bus Tunnel

Buses operating in dedicated transit tunnels are very rare. One city where this is done is Seattle, Washington State, USA.

Originally opening in September 1990, and wholly located within the city's 'free travel' zone the 1 & 1/3rd mile (2.1km) tunnels were originally served by a fleet of Italian Breda duobuses, with some services providing a direct link to the city's airport.

It is in this guise that this film was made.

The bus subway features 5 stations which opened on Mondays - Saturdays only. At the time of construction rail tracks were also installed for a future light rail service. Unfortunately despite this commendable forward thinking it was subsequently decided that part of the light rail line will follow a different alignment than the existing tunnels, so on 24th September 2005 the bus subway was closed for two year period of rebuilding.

Most of the duobuses were actually withdrawn well in advance of the closure (with many being converted to pure trolleybuses for use on surface routes) and - amazingly - replaced with diseasal powered buses. (diseasal = disease diesel)

In April 2005 local users were reporting on Internet discussion groups that the tunnels were often somewhat smelly from (what thinking people know to be) the poisonous diesel engine exhaust fumes.

Whilst it is true that the buses are diesel electric hybrids they still needed to use the fossil fuel traction package whilst underground, although this was in a special 'hush' mode which means that the only operate between stations and at much reduced power.

Apparently the choice of fossil fuel buses was influenced by the transport operators' belief that it is not possible to mix overhead wire powered light rail and electric trolleybuses / duo-buses in an underground tunnel system - even though Essen proved otherwise!

In Seattle the buses were driver steered, it might be assumed that for safety's sake "some" sort of guidance system would have been needed - if only to reduce the chance of a bus accidentally hitting the tunnel wall - especially within the portion of the bus subway which featured narrow London Underground 'tube-like' tunnels (as seen here), but this was not the situation.

This video compilation was filmed in May 1993. The sequences only follow a cursory order and because of faulty camcorder lens optics (which was only discovered once back home) the images are not as sharp as they should have been. Which is a shame.

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The tunnel reopened on 24th September 2007, although again for hybrid diseasal buses only.

Category:

Travel & Events

Tags:

• seattle
• bus
• tunnel
• metro
• busway
• brt
• transit

[Shmebber]

I wish this video showcased more of the beautiful bus tunnel stations - the low quality doesn't showcase the stunning marble and granite facades. It also doesn't show much of Westlake station - by far the prettiest in the tunnel!

[citytransportinfo]

@Shmebber Alas the lighting made this difficult, even my still image photographs did not come out too well.

When I returned home and saw my video footage I was disappointed because the image was much less sharp than I thought it should be - I think there was a fault with the lens.

[captainbly200]

oh wait now i get it. the seatlle buses run on diesel and diesel leaves smoke behind. so in order for the buses not to suffocate nobody in the tunnel they have pantographs that allow them to run with out filling the tunnel with smoke. thats pretty clever.

[djdjerojr]

@captainbly200 They're just electric trolley busses. Has nothing to do with air in the tunnel.

[TheTriton90]

Fuck

[leothedirilo]

i saw a smosh ad!?

[papyr79]

Is it so hard to use the same live wire for trams and for trolleybuses, while the second wire of trolleybus would be placed cca 5 inches higher? This way tram can't reach it but the trolleybus can.

[tomnatwil]

Am I the only one that noticed the buses were running on electricity while under ground and didn't start their deisel engines til they were outside. I distictly saw the bus lower it's pantograph and heard the engine start.

[nocluewhere]

seeing that first bit as you go down the tummel got me thinking of the train drivers here in OZ conplaining of driveing in the tunnles with the lights cousing disorentaion, thats the anwser turn the lights away so that its lighting where you are going not where you are.

[sega31098]

@citytransportinfo

Actually, it can kill some fishes if there's no bypass.

[Inediblehulk]

It's not natural, dammit! Like watching a penguin skid in on a runway, or a llama tow a barge. Well, a little different. But still...