Showing posts sorted by date for query Selective Door Operation. Sort by relevance Show all posts
Showing posts sorted by date for query Selective Door Operation. Sort by relevance Show all posts

Tuesday, June 2, 2026

Seoul's Subway System Is Decades Ahead of many others

 https://www.youtube.com/watch?v=PPlGQDpx4xg 

While there could be a reasonable argument that if a subway or elevated line isn't expected to be that busy in its first few years, then just build half-size stations and run half-length trains. However, in the case of backwards Vancouver, what should have been stations that were designed to accommodate at least 5 car trains, were only designed for an eventual 2.5 car train. Thus, it will be challenging enough just to modify the incredibly short Canada Line stations to gradually accommodate 3 full-size 20 m cars, not just some 2.5 car joke of a train for a 50 m station. 

Fortunately the Skyline_(Honolulu) stations can accommodate a 4 car train right from the start. Someday, with SDO a 4 car train could become a 6 car train.

If Selective+Door+Operation (SDO) can ever be implemented on the YVR-Canada Line then it can go from being a 2 car joke of a train to a 3 car attempt of a train. Then, once people got used to 3 car trains, an extra car could be added at both ends, thus allowing for a 5 car train. 

Ultimately, the YVR-Canada+Line should have been designed as a proper big-city size train with 8-10 cars. There seems to be such a lack of proper long-term transportation infrastructure planning in BC. To just build a small-scale line as a symbolic demonstration of reluctance towards the Pacific Rim is so absurd. 

Fortunately, Melbourne, Sydney and Brisbane never opted for such a short train.  


There Is a Hidden City Under Seoul Nobody Talks About. https://www.youtube.com/watch?v=pIewf8sOZ0I

Monday, June 1, 2026

Yaletown–Roundhouse station's fare gate capacity increased by 66%

 https://dailyhive.com/vancouver/skytrain-yaletown-roundhouse-station-additional-fare-gates-completed 

The Canada line is such a watered down version of what should have been a proper big city airport and ferry rapid transit link. Just because this infrastructure project had to be scaled down during its first phase, the stations still could have been designed to eventually accommodate 5-6 car trains. Unfortunately, the stations were only designed to accommodate a 2.5 car train. While this perfectly fits in with the inept urban transportation mentality and especially fits in with the BC congestive transportation agenda, this is another sad result. 

https://dailyhive.com/vancouver/skytrain-yaletown-roundhouse-station-fare-gate-expansion

Despite being downtown with several condominiums around, the Yaletown-Roundhouse_station is too small for an inner-city station.

https://en.wikipedia.org/wiki/Yaletown-Roundhouse_station#Station_information 

https://upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Yaletown_Roundhouse_Stn.jpg/1280px-Yaletown_Roundhouse_Stn.jpg 

There is barely enough level clarence beyond the short platform for another car. To remedy this inadequate situation, this line needs to have three full-size cars, not just some eventual 2.5 car joke of a train. 

https://www.eke-electronics.com/automatic-selective-door-operation-asdo 

Then eventually, once people got used to a 3 car train, an extra car could be added at each end, resulting in a 5 car train. Its a workaround that can eventually enable the 3rd line or the C Line to run 3-5 cars trains to meet demand. 

Then the Exp. Line and Mil. Line, or what could become A & B lines with standard 5 car trains. However, during the busy times, a 7 car train could be possible with selective-door-operation technology. 

It would have been better to have just built all of the Skytrain stations long enough for 5 car trains in the first place, with enough level track clearance for 10 car trains eventually.

Sunday, May 31, 2026

Vancouver 450 ft and Fahrenheit 451

Was a 450 foot height restriction just a chance, or was it intentionally made to be very close to 451 Fahrenheit? Honolulu is still stuck around that maximum, while San Diego is at 500 feet.

 https://en.wikipedia.org/wiki/Fahrenheit_451 (1953) By the 1950s, so many things were already banned, watered down or scaled back in provincial Vancouver. Generations later, there was the No Fun Vancouver mind virus that further tried to cancel out things in such a small city with so much red tape and other ridiculous obstacles.

https://en.wikipedia.org/wiki/Fahrenheit_451_(1966_film) By the mid and late1960s, the city made sure that its first office tower to have more than 29 floors wouldn't be until the 1970s. Its highly doubtful that Vancouver will have an office tower over 40 stories by 2030. However, Burnaby and Surrey could, because they aren't under the extreme restrictions of Vancouver. 

It wasn't until 1973 when Vancouver allowed its first building to be taller than the Los_Angeles_City_Hallhttps://en.wikipedia.org/wiki/Los_Angeles_City_Hall 

The Scotia_Tower (stump) is a good reference point to visualize the small scale of backwater Vancouver, as its about the same height as the Los_Angeles_City_Hall at 453'. 

https://www.skyscrapercenter.com/building/scotia-tower/4396 453'

https://skyscraperpage.com/b65/vancouver/the-scotia-tower 452'

https://en.wikipedia.org/wiki/Fahrenheit_451_(2018_film) By 2018 it was quite apparent that Vancouver was in the process of allowing for more buildings over 450 feet. However, nothing has been permitted to reach 700 feet, so far. A tower over 1000 feet would help to water down its provincial mindset. 

https://upload.wikimedia.org/wikipedia/commons/thumb/1/14/Vancouver_panorama_%2849988799796%29_%28cropped%29.jpg/3840px-Vancouver_panorama_%2849988799796%29_%28cropped%29.jpg

SF, Sydney & Auckland are just as scenic as Vancouver & warmer throughout the year. They all have taller building than what Vancouver currently permits. Seattle is just as scenic as Vancouver, but its allowed to function like a proper big city, because it doesn't have the imposed restrictions like Vancouver has. While its cold, damp & depressing like Vancouver during the fall & winter, Seattle usually gets noticeably hotter summers than Vancouver, BC. The tallest building in Seattle is the 76 story B of A office tower. 

https://upload.wikimedia.org/wikipedia/commons/thumb/5/57/LA_Skyline_Mountains2.jpg/1280px-LA_Skyline_Mountains2.jpg While the L.A. City Hall looks like a stump there, in Vancouver it would still be one of the prominent buildings.

Everything is so small or scaled back in Vancouver. Even the Greater Vancouver mountains aren't allowed to be as tall as the ones in L.A. While the San_Francisco_Bay & Port_Phillip Bay by Melbourne are big next to their cities, English_Bay in_Vancouver is so much smaller. Its even smaller than Elliott_Bay by Seattle. 

Vancouver really needs to have bus and HOV bridges built next to its mostly narrow & congested bridges. Only a 5 car Skytrain is the max on the first 2 lines and ultimately, just a 2.5 car joke of a train on the YVR-Canada Line. 

Selective+Door+Operation can allow a short train to have an extra car at each end, despite a shorter platform. 

https://upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Vancouver_sunset_%28J%29.jpg/3840px-Vancouver_sunset_%28J%29.jpg 
https://upload.wikimedia.org/wikipedia/commons/thumb/6/69/Los_Angeles_with_Mount_Baldy.jpg/3840px-Los_Angeles_with_Mount_Baldy.jpg

Australia like the USA, has some big & tall cities on the Pacific Rim. However, Vancouver symbolically kept watering down its size, because that's how you demonstrate a reluctance towards proper urban planning & growth. 

Oddly enough, the small scale Vancouver mentality & agenda wasn't adopted by most cities around the world. Officially, there is no Vancouver Mind Virus (VMV), but somehow it keeps manifesting, just like the BCMV. 

Despite its size, Canada has less than 1% of the worlds population.

Thursday, May 21, 2026

Vancouver's Mark 1 SkyTrain History

 https://www.youtube.com/watch?v=EHzj0vDg13U 

Unfortunately, the stations were only designed to accommodate 6 short cars on an 80 m platform. Eventually, even with the longer cars, Selective+Door+Operation will be necessary to allow for longer trains.

The new Capstan Station recorded SkyTrain's fourth-lowest ridership after one year

 https://dailyhive.com/vancouver/skytrain-capstan-station-ridership-canada-line 

Wow, this picture almost makes it look like its a big-city train station and not just a 2 car train joke. The CLine should have opened with 5-6 car trains, or at least 3 car trains. Any station can have the potential of becoming more popular, especially when there are more residential and business structures close to it. 

The Can-Line could really benefit from Selective+Door+Operation, which would allow for longer trains.


How Copenhagen built a metro for free https://www.youtube.com/watch?v=GzamwVH3CXU&t=8s At least this could run 3 car trains right from when it started.

Sunday, May 17, 2026

The Broadway Subway-Mount Pleasant to Broadway City Hall

 https://www.youtube.com/watch?v=z64SisMwIuY 

Another illogical lane reduction project. Broadway was for the most part, always 6 lanes, 7, if you count the turning lane at major intersections. The train isn't a 24 hour service, so its important to always have 1 bus lane each way, especially if the train is shut down for an occasional emergency. Then there still should be 2 general lanes each way, because this isn't supposed to be a small town street or avenue. 

This, combined with so many 4 lane bridges, ensures that BC bottleneck-chokepoint planning remains firmly entrenched. 

A 5 car Vancouver train is expected to do the job of a 9 car Montreal Metro train. That's because a short Vancouver train can run a little more frequently than a 9 car Montreal Metro train, during even the most busy times of the day. Of course many proper cities have long big-city trains, because they aren't under anything like small thinking Vancouver, or a backwater BC mentality.

The standard short trains, narrow bridges & narrow streets and short buildings, are all part of holding the scale of Vancouver back. Apparently, if you can't build a wall around Vancouver, the next best thing is to continually plan and build symbolically for a provincial backwater of a city. 


https://jfdatalinks.blogspot.com/search?q=Selective+Door+Operation

Oakridge Park and Mall

 https://www.youtube.com/watch?v=E6Kwx7SctJ4 

Somehow the people around Broadway Station weren't able to stop this. Well, the Oakridge Station area is becoming its own town centre in that part of provincial Vancouver. Yet, the Broadway & Commercial area is already a big transportation intersection.

Despite the C-Line still only running 2 car joke trains, there is a potential to have 3 car trains. That's still pretty sad when the 50 m stations should have been built to eventually accommodate 5-6 car trains. Unfortunately, the planners never seriously considered to have a future level station clearance of 100-120 m. In contrast, the Montreal Metro has 152.5 m stations and can accommodate 9 car trains. The Vancouver Mind Virus (VMV) has always prevented the city from thinking on a big scale. 


https://jfdatalinks.blogspot.com/search?q=Oakridge+Park+Mall 

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Friday, May 15, 2026

Vancouver’s NEW Mark V SkyTrain

 https://www.youtube.com/watch?v=qXNDGm8u364 

Many proper big cities have 10 car trains. Its taken slow Vancouver just to start having 5 car trains.


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Saturday, May 9, 2026

Brentwood Town Centre station

https://en.wikipedia.org/wiki/Brentwood_Town_Centre_station

 https://www.google.com/maps/place/Brentwood+Town+Centre+Station/@49.2667114,-123.0053608,1361m/data=!3m1!1e3!4m15!1m8!3m7!1s0x548677a8219c8373:0xdd0a72738752b169!2sBurnaby,+BC!3b1!8m2!3d49.2488091!4d-122.9805104!16zL20vMDFkMjZ5!3m5!1s0x548677303c38b9a1:0xc483215d1513ddc2!8m2!3d49.2663877!4d-123.0016074!16zL20vMDdfejli!5m1!1e2?entry=ttu&g_ep=EgoyMDI2MDUwNi4wIKXMDSoASAFQAw%3D%3D 



https://en.wikipedia.org/wiki/Oakridge-41st_Avenue_station

https://www.google.com/maps/place/Oakridge-41st+Avenue/@49.2313721,-123.1222354,837m/data=!3m1!1e3!4m15!1m8!3m7!1s0x548673f143a94fb3:0xbb9196ea9b81f38b!2sVancouver,+BC!3b1!8m2!3d49.2827291!4d-123.1207375!16zL20vMDgwaDI!3m5!1s0x54867470d349b63b:0xabce161967e00006!8m2!3d49.2331553!4d-123.1166421!16zL20vMGN0d2do!5m1!1e2?entry=ttu&g_ep=EgoyMDI2MDUwNi4wIKXMDSoASAFQAw%3D%3D  



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Cambie and Broadway–City Hall station

https://en.wikipedia.org/wiki/Broadway-City_Hall_station

 https://www.google.com/maps/place/Broadway-City+Hall/@49.2633144,-123.1176458,850m/data=!3m1!1e3!4m15!1m8!3m7!1s0x548673f143a94fb3:0xbb9196ea9b81f38b!2sVancouver,+BC!3b1!8m2!3d49.2827291!4d-123.1207375!16zL20vMDgwaDI!3m5!1s0x548673dd78271e43:0xe3c5e9b2c05b7174!8m2!3d49.26283!4d-123.1145299!16zL20vMGN2N2R6!5m1!1e2?entry=ttu&g_ep=EgoyMDI2MDUwNi4wIKXMDSoASAFQAw%3D%3D 

https://en.wikipedia.org/wiki/Millennium_Line#Broadway_extension 



https://en.wikipedia.org/wiki/Commercial-Broadway_station

https://www.google.com/maps/place/Commercial-Broadway/@49.2625285,-123.0712046,845m/data=!3m1!1e3!4m15!1m8!3m7!1s0x548673f143a94fb3:0xbb9196ea9b81f38b!2sVancouver,+BC!3b1!8m2!3d49.2827291!4d-123.1207375!16zL20vMDgwaDI!3m5!1s0x5486714929652bf1:0x1e360e906241981!8m2!3d49.262623!4d-123.0692365!16zL20vMDVyMGZ0!5m1!1e2?entry=ttu&g_ep=EgoyMDI2MDUwNi4wIKXMDSoASAFQAw%3D%3D 

https://en.wikipedia.org/wiki/Expo_Line_(SkyTrain)#History 



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Surrey-Langley SkyTrain extension hits major project milestone

 https://dailyhive.com/vancouver/surrey-langley-skytrain-station-milestone 


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Wednesday, May 6, 2026

West Broadway at Cambie Street

https://dailyhive.com/vancouver/broadway-city-hall-station-subway-full-road-closure-construction-summer-2026 

Under current station platform limitations, the 2nd line can only accommodate 5 car trains, not 10. The 3rd line can only accommodate a 2.5 car train, not 5 and especially not 10 cars. That despite it being an airport line and potential link to a BC Ferry Terminal train station.


Monday, November 17, 2025

Evolution of the Vancouver SkyTrain 1985-2035

 https://www.youtube.com/watch?v=-3kzHlQQSeg 

The first 2 lines only have stations that can accommodate the new 5 car trains, not 8-10 cars. 

Unfortunately, the Canada Line wasn't designed to accommodate 5 car trains, only a 2.5 car joke of a train.

https://sellacontrols.com/automatic-selective-door-opening-asdo-correct-side-door-enabling-csde/

Eventually, a 5 car train could have an extra car at each end to become 7. 

Despite initial cost cutting measures, the Canada_Line still could have been designed to eventually have 160 m long stations, not 160 foot joke stations.

https://en.wikipedia.org/wiki/Canada_Line#Stations 

https://www.eke-electronics.com/automatic-selective-door-operation-asdo/

========================================

Riding the REM Through the Mount Royal Tunnel https://www.youtube.com/watch?v=olBJF2w74oc

Monday, July 14, 2025

Skyline (Honolulu) Rapid Transit

 https://en.wikipedia.org/wiki/Skyline_(Honolulu) Only 4 car trains? At least it's not a 2 - 2.5 car joke of a train that is the Canada embarrassment Line in backwards Vancouver.

Fortunately, it's a walkthrough train and with SDO, it could eventually become a 6 car train, if there is ever a need to increase capacity by 50%.

https://honolulutransit.org/about/route-map , https://www.youtube.com/watch?v=2Wq3THzQZr0

https://en.wikipedia.org/wiki/Skyline_(Honolulu)#Rolling_stock

https://www.honolulu.gov/dts/skyline/home/

Hawaii's $10BN Railway Nightmare Explained https://www.youtube.com/watch?v=3xnrhm1KcB4



https://jfdatalinks.blogspot.com/search?q=Selective+Door+Operation 

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Monday, May 12, 2025

NSW OSCAR Trains

 https://en.wikipedia.org/wiki/New_South_Wales_H_set

Train length81.55 m (267 ft 6+58 in)
Car length
  • 20.34 m (66 ft 8+34 in) (OD)
  • 20,435 mm (67 ft 12 in) (ON/ONL)

https://en.wikipedia.org/wiki/New_South_Wales_H_set#Design

An 8 car train stopping at a 6 car station.

"Example of selective door operation. The doors in the first 2 carriages are not opened, because the platform is too short for an 8-carriage OSCAR train." https://en.wikipedia.org/wiki/Selective_door_operation

https://en.wikipedia.org/wiki/Sydney_Trains


https://jfdatalinks.blogspot.com/search?q=Selective+Door+Operation

Selective Door Operation (SDO)

 https://en.wikipedia.org/wiki/Selective_door_operation#UK_variations

SDO is a great way to add an extra car at both ends of a train. Thus, a 3 car train can become 5 & a 6 car train could become 8. 

https://en.wikipedia.org/wiki/London_Underground_S7_and_S8_Stock#Features

https://en.wikipedia.org/wiki/London_Underground_S7_and_S8_Stock#/media/File:Articulate_section_S_stock.JPG

https://www.witpress.com/elibrary/wit-transactions-on-the-built-environment/74/12046

https://www.rssb.co.uk/research-catalogue/CatalogueItem/T686

The Chicago L can run up to an 8 car train, because that's the maximum station platform length. If the L can ever have walkthrough trains, then an 8 car train could become a 10 car train with SDO.

Stubborn Vancouver & BC just can't seem to allow for proper comprehensive transportation planning. 

Unfortunately, the multibillion dollar Canada+Line wasn't designed for significant future capacity. No five car trains, just a 2.5 car joke. There was a lack of vision to connect the Horseshoe+Bay ferry+terminal with downtown Vancouver and the airport.



https://jfdatalinks.blogspot.com/search?q=Selective+Door+Operation 

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Monday, January 23, 2023

Passenger Train Lengths

 https://jfdatalinks.blogspot.com/search?q=Passenger+Train+Lengths

Train length
  • 4-car: 82.87 m (271 ft 11 in)
  • 5-car: 102.86 m (337 ft 6 in)
Car length
  • DM vehs.: 21,446 mm (70 ft 4 in)
  • Others: 19,990 mm (65 ft 7 in)

https://en.wikipedia.org/wiki/British_Rail_Class_710#Operation 68' or 67.5' x 4 or 5 car trains.


Train length
  • S7: 117.45 m (385 ft 4 in)
  • S8: 133.68 m (438 ft 7 in)
Car length
  • 17.44 m (57 ft 3 in) (DM)
  • 15.43 m (50 ft 7 in) (NDM)

https://en.wikipedia.org/wiki/London_Underground_S7_and_S8_Stock

Selective door operation (SDO) is used at some stations where the platform is shorter than the train, such as at Baker Street https://en.wikipedia.org/wiki/London_Underground_S7_and_S8_Stock#Features


Train length101.350 m (332 ft 6.2 in)
Car length
  • DMOS vehs.: 19.995 m (65 ft 7.2 in)
  • Others: 19.660 m (64 ft 6.0 in)

https://en.wikipedia.org/wiki/British_Rail_Class_378#Design_and_features


The first 2 SkyTrain lines only have 80m stations, which can accomodate 5 of the newest cars. However, with SDO a 5 car train can become 7.

The Canada embasement Line was only designed to have 50m stations, not 152m stations like the Montreal Metro. Unfortunatly, the underbuilt Canada Line stations weren't designed to accommodate 5 car trains, only a 2.5 car joke of a train. Getting past the half-car B$, three 20m cars would form a 60m train. SDO can not only make a 3 car train possible, but a 5 car train length of 100m, despite its absurd 50m platform. It just would have been better to have built proper big city stations in the first place.

Of course Vancouver would opt to have shorter underground train stations than Montréal, Toronto, Edmonton, Seattle, SF & LA, because shorter trains help to increase urban transportation congestion. Unfortunately, increasing congestion is a key component of the Vancouver city planning mentality & BC in general.



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