15 minute SkyTrain service in Surrey this summer due to track replacement work

 https://dailyhive.com/vancouver/skytrain-expo-line-surrey-gateway-station-track-switch-disruptions-summer-2025

For a line that first opened in 1985, it took until 2025 to try to start running 5 car trains of the latest generation of rolling stock. Considering that Greater Vancouver has a narrower road network than Montreal, the SkyTrain stations should have been designed to accommodate 10 car trains. 

While the Alstom_Mark_V vehicles look nice & modern, a 5 car train is a half-length reminder of how much nicer & better a 10 car train would look. 

Just because the SkyTrain is considered to be a Light Rail Vehicle, there still should have been a provision to eventually have the stations to be as long as the longest ones on the Montreal Metro. The Montreal Metro has 500 foot or 152.5m long stations, which can accommodate a 9 car train. Unfortunately, the first 2 SkyTrain lines only have 80m stations, which are just barely over half the length of the longest STM stations. https://www.stm.info/en/info/networks/metro

https://en.wikipedia.org/wiki/Societe_de_transport_de_Montreal#Connections_to_other_transit_services

https://en.wikipedia.org/wiki/Montreal_Metro#Rolling_stock

https://en.wikipedia.org/wiki/MR-63#Design While a 3 car joke of a train was possible, a 6 & especially a 9 car train is able to efficiently move more people around.

https://en.wikipedia.org/wiki/MR-73

3 cars per trainset, operating as 6- or 9-car trains

https://en.wikipedia.org/wiki/MR-73#Construction_and_entry_into_service

Apparently, in order to reduce construction costs, the first 2 SkyTrain lines have stations that are only 250 feet. Half the length of a 500 foot long Montreal train, but BC usually takes the half-assed option with its small-scale of infrastructure development. 

https://en.wikipedia.org/wiki/SkyTrain_(Vancouver)#UTDC_ICTS_Mark_I_fleet "The maximum based on current station platform lengths is a six-car configuration, totaling 76.2 metres (250 ft)."

https://en.wikipedia.org/wiki/MPM-10  (9 articulated cars per train)

Train length	152.43 m (500 ft 1+1⁄8 in)

https://en.wikipedia.org/wiki/MPM-10#History  Approximately, a 500 foot train divided by 9 cars = 55.55 feet, or just under 17m.

Despite the SkyTrain cars not running on rubber tires, each 55 ft. coach is very close in length to the 55.6 ft Montreal Metro coaches. 

https://en.wikipedia.org/wiki/Innovia_Metro#Vehicle "The second generation Innovia ART 200 cars are 16.7 metres (54 ft 9

+1⁄2 in) long each and come in articulated pairs."

https://en.wikipedia.org/wiki/SkyTrain_(Vancouver)_rolling_stock#Alstom_Mark_V

While the Mark 5 cars are about 55 feet, the C Line cars are almost 66 feet. Of course just like the first 2 lines, the C Line was also designed to not have 10 car stations, not even 5 car long stations. Since there was a real push to reduce construction costs, the stations only have a clearance to eventually accomodate a 2.5 car train. 

https://en.wikipedia.org/wiki/SkyTrain_(Vancouver)_rolling_stock#Summary

Thus, as a a further step backwards, the 3rd line had to even be much shorter than the 152.5m Montreal Metro stations. Despite being another cost-cutting measure, the C Line could have & should have had all of its stations designed with future level clearance to eventually be at least 3 times longer than the absurd 50m. 

https://en.wikipedia.org/wiki/SkyTrain_(Vancouver)_rolling_stock#Canada_Line_fleet

"The Hyundai Rotem cars are 3 metres (9 ft 10+1⁄8 in) in width and 20 metres (65 ft 7+3⁄8 in) in length..." 

https://en.wikipedia.org/wiki/SkyTrain_(Vancouver)_rolling_stock#Hyundai_Rotem_EMU

While the multi-billion dollar line wasn't designed to have 10 or even 5 car trains, this 2.5 car joke of a train must be corrected.

https://www.railjournal.com/passenger/metros/hyundai-rotem-to-supply-new-vancouver-skytrain-cars

Selective_door_operation (SDO) can enable trains that are longer than the 50m C Line platforms. So instead of just two 20m cars or a 20+10+20m, three 20m cars could stop at the absurd 50m stations. While the design limitations make it almost impossible to extend the ridiculous 50m platforms, even a 5-10m extension can make a significant difference. A 3 car walkthrough train would only be 60m, but that would form the middle key section of a 5 car train with SDO. That could be done by having an extra 20m car at either end of a 60m train. In theory, the middle 3 coaches would have direct contact with the absurd 50m platforms. SDO can allow a 100m train to use a 50m station. People going past more than a few stations would be advised to move to the very end cars of a 5 car train. Then work their way to the middle 3 cars to access their desired station.   

Just because the first phase of the C Line was designed to only have a 2.5 car train, the stations should have already been long enough to accommodate a 5 car train. Then, with significant future capacity in mind, there still could have been enough level clearance built to ultimately have 10 car trains.

SDO could also be used on the first 2 SkyTrain lines. Once 5 car trains become common, then planning for 7 car trains could be possible with SDO. While the C Line just doesn't have much level clearance to go beyond a 50m station, the first 2 SkyTrain lines could potentially have longer platforms to accommodate a 7 car train. Then with SDO, a 9 car train could be possible.

Of course the whole SkyTrain system should have been designed to have 8-10 car long stations, right from the start. Fortunately, anything like the backwards BC planning mentality never reached & prevented the Edmonton LRT from having longer stations. Especially, Toronto & Montreal & even Seattle, SF & LA. 

https://jfdatalinks.blogspot.com/search?q=SDO 

https://jfdatalinks.blogspot.com/search?q=SkyTrain

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 

https://jfdatalinks.blogspot.com/search?q=SDO

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 length	101.350 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.

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

https://jfdatalinks.blogspot.com/search?q=SDO

SDO for short stations to make for longer trains

Although the station platform only allows room for a three-car trainset, when the station was first opened a six-car trainset was used on the line. In this case, only the first three train cars' doors opened at this station (selective door operation). It was not until 22 July 2006 that a dedicated three-car trainset began service on the line. https://en.wikipedia.org/wiki/Xiaobitan_metro_station

https://en.wikipedia.org/wiki/Selective_Door_Operation (SDO)

https://en.wikipedia.org/wiki/Taipei_Metro#Platforms

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

SDO is such a great way to add a couple of cars without having to extend the platform until its absolutely necessary.

https://www.youtube.com/watch?v=TNtT0U-5zME ber

https://www.youtube.com/watch?v=0epKxaeCCHE sth

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

https://jfdatalinks.blogspot.com/search?q=SDO

Why New York City has a Two-Car Subway Train and provincial Vancouver is stuck with a 2 car airport train

 https://www.youtube.com/watch?v=xH37SqlW0Ks 

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

https://en.wikipedia.org/wiki/R68_(New_York_City_Subway_car) 75-foot (22.86 m) length for each car. So roughly, a 2 car joke of a train is almost 46 m, or 150 ft. The absurd Canada_Line-Stations with its 2 car trains are in the 40 m to 50 m range. Thus, only two car & 2.5 car trains are only possible. In contrast, a 9 car Montreal_Metro train can be up to 152.5 m, or 500 ft.

Train length	2 car train: 150 feet (46 m) 4 car train: 300 feet (91 m) 8 car train: 600 feet (180 m)

https://en.wikipedia.org/wiki/R68_(New_York_City_Subway_car)#Description So, an 8 car, 600 foot long train is 100 feet longer than a 500 foot, 9 car Montreal train. 

The end of the line for the Franklin_Avenue_Shuttle is only a single track platform. 

Unfortunately, the YVR and the Richmond end if the Canada_Line stations are also a single track platforms. Even if this was initially decided as a cost saving measure, a double track guideway still should have been built. Then, a proper double track station could eventually be completed. Especially if the line is ever extended to the Delta Ferry terminal.

The YVR-Airport_station was deliberately designed to be narrower and shorter than what a proper big city airport station should be. Its another example of the unofficial BCMV reducing and thwarting the scale of things. 

https://en.wikipedia.org/wiki/Pearson_Airport_station Almost like REM quality for Toronto, but not for provincial Vancouver. https://www.upexpress.com/en/up-express-stations/pearson-station , https://www.torontopearson.com/en/transportation-and-parking/up-express Wow, Toronto like Perth can run 3 car big city type trains. https://en.wikipedia.org/wiki/Union_Pearson_Express#Rolling_stock Vancouver can only hope for a 2.5 car train, someday. 

https://en.wikipedia.org/wiki/Union_Pearson_Express#Route Sometimes, a 2 car joke of a train might be OK to start with, but there should already be enough station clearance for at least 3-5 car trains. Then, as long as its a walk-through train, Selective_Door_Operation (SDO) can make it possible to add an extra car at both ends of a short train. SDO can be an intermediate step before having to extensively lighten each station. 

Stubborn, backwards Vancouver will eventually have to seriously consider SDO in order to have longer big city type trains. Unfortunately, as long as its stuck in the BC backwater mentality or under the spell of the BCMV, things won't improve.

https://canada.constructconnect.com/dcn/news/projects/2026/05/montreals-airport-rem-station-will-have-signature-iceberg-motif , https://montrealgazette.com/news/rem-has-begun-testing-trains-on-airport-branch Of course the YUL-P.E. Trudeau_station, like the Honolulu Airport station, will be longer and wider than the one at YVR.

Perhaps the short, single track & platform at the YVR-Airport_Station would be impressive if it were in Victoria, Prince George, Kamloops or Kelowna, but its hardly impressive when compared to the SeaTac/Airport_station, Portland_Airport_station, Lelepaua_station in Honolulu, Brisbane_Airport station, Sydney_Airport stations, the future Melbourne_Airport station and Perth_Airport station. The scale of the San_Francisco_International_Airport_station, which can accommodate 10 car trains, is on a whole other scale. All major airports and their train stations in Asia & Europe are so far beyond what Canada has. There is no reason as to why Greater Vancouver and some other cities in BC, can't be upgraded to a Pacific Rim infrastructure level, instead of  being stuck in a perpetual BC backwater mindset. 

The VMV, under the umbrella of the larger BCMV, is such a horrible impediment and it doesn't even officially exist. 

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 

https://jfdatalinks.blogspot.com/search?q=SDO

REM operator apologizes for lack of communication during morning disruptions

 https://www.cbc.ca/news/canada/montreal/rem-operator-apologizes-for-lack-of-communication-during-service-outages-wednesday-morning-9.7312084  

https://exo.quebec/en

At least the REM started out on a grander scale than the Skytrain. With SDO, a 4 car train could easily become 6. Then, as long as there is enough level station clearance, longer platforms should be possible. 

Someday, SDO could even allow a 9 car Montreal Metro train to have 11 car trains like in NYC on the 7. 

https://en.wikipedia.org/wiki/7_(New_York_City_Subway_service)#Fleet 11 car trains. 

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

New South Wales H set trains

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

Train length	81.55 m (267 ft 6+5⁄8 in)
Car length	20.34 m (66 ft 8+3⁄4 in) (OD) 20,435 mm (67 ft 1⁄2 in) (ON/ONL)

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

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

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

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 (SDO)

https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Selective_Door_Operation.jpg/960px-Selective_Door_Operation.jpg 

This platform can accommodate 6 out of an 8 car heavy-rail train. 

This means that an extra car or 2 can be added to a shorter train, even if the station isn't long enough. 

Thus, before lengthening the stations on the first 2 Skytrain lines, a 5 car train could become a 7 car train. Perhaps even a 9 car train, like with the Montreal Metro trains. Eventually, the stations on the first 2 Skytrain lines could be lengthened for 7 car trains and whenever possible, 9 car trains.

Unfortunately, the 50 m level station clearance for the YVR-Canada Line trains wasn't designed for 5 car, 100 m trains, just a 2.5 car joke of a train. However, with some platform modifications and some very slight station lengthening, three 20 m cars might be possible, instead of a 2.5 car joke of a train.  

Then, once a 3 car, 60 m train is adapted to a 50-55 m platform, SDO can enable an extra car at each end to become a 5 car train. Perhaps ultimately, there could even be an extra 2 cars at each end of the middle 3 car train, to become a 7 car train.

Automatic Selective Door Operation (A-SDO) for Trains

https://www.youtube.com/watch?v=YdH5d1ZthmM 

Selective+Door+Operation can be a great short-term option towards solving a long-term station problem.

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

https://petardsrailsolutions.com/rail-solutions/automatic-selective-door-operation

https://www.reddit.com/r/transit/comments/orvvzh/how_to_save_money_on_platform_extensions_use 

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

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

LRT, Semi-metro and Heavy Rail Rapid Transit...

https://en.wikipedia.org/wiki/Light_rail , https://en.wikipedia.org/wiki/Light_rail#Types , 

https://en.wikipedia.org/wiki/Light_rail#Comparison_to_other_rail_transit_modes

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

https://en.wikipedia.org/wiki/Semi-metro 

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

Of course when Vancouver & the greater urban region became obsessed with keeping the roads & bridges narrow, it was as if there wasn't a proper concept of having express bus lanes & dedicated rapid bus lanes. Short trains is just another example of the congestive transportation approach to things in BC.

https://dailyhive.com/vancouver/translink-funding-issues-impacts-traffic-congestion 

The 1959 George_Massey_Tunnel should have opened with 3 lanes each way. Plus, 2 wide emergency lanes. Then over the course of its first 2 decades, it could have become a 6 lane crossing with 2 bus & HOV lanes. 

By the 1980s, the inept 4 lane George_Massey_Tunnel should have had a parallel higher & wider bus & HOV tunnel consisting of at least another 4 lanes & at least 2 emergency lanes. Thus making it more capable as an eventual replacement to the old tunnel. Then by around 2000, there should have been a bike, truck & train bridge or tunnel as well. 

A George_Massey_Tunnel#Replacement by the 2030s? The first phase of this really should have been started by the 1980s. Of course the new tunnel with 8 lanes & 2 bike lanes, won't have 2 truck lanes & there won't be 2 HOV lanes. Plus, in accordance with a perpetual congestive planning mentality, there is no provision for an extension of the Canada Line to Delta.

The new Richmond-Delta+Tunnel should not only have had 3 general lanes each way & 1 bus lane each way, there should be 1 truck lane each way as well. Plus, 2 wide emergency lanes which could eventually be repurpose for a north & southbound rapid bus transit corridor. That's because, even if there is ever a YVR-Canada-Line to the ferry terminal, it won't be open 24 hours.

Someday the YVR-Canada-Line should not only have 2.5 car trains, but an actual 5 car train consisting of five, 20m coaches. Selective_Door_Operation (SDO) technology would make this possible. Of course it would have simply been much better to have designed all the stations to already be at least 100m, instead of the inept 50m. Unfortunately, backward BC thinking keeps getting in the way.

https://www.richmond-news.com/local-news/province-considering-filling-george-massey-tunnel-with-sand-8777369 Despite the old tunnels height restrictions, a slightly smaller version of the Road_Train could have been ideal for it. https://en.wikipedia.org/wiki/Road_train#Trailer_arrangements

Keeping the old tunnel as a freight corridor between Delta & Richmond would be of tremendous benefit. Delta has the Roberts_Bank_Superport & the Tsawwassen_ferry_terminal.

Richmond has the Vancouver_International_Airport & the inept Canada_Line. 

Despite budget limits at the time, the Canada_Line should have been designed to eventually have 5 car trains & ultimately, 10 car trains. It should have been envisioned as a high capacity rail link between downtown Vancouver, YVR, Richmond & Delta. With an ultimate connection between the Tsawwassen_ferry_terminal and the Horseshoe_Bay_ferry_terminal. 

For some reason Vancouver & BC never seemed to really take off in the 1980s like Calgary, Seattle & Perth. Indeed, while Vancouver seemed to continue on its sleepwalking path after Expo_86, Brisbane really started to boom after its World_Expo_88. 

Unlike SW BC, the Brisbane Airport & seaport are much closer to each other. Being from Vancouver, its hard to fathom how the Brisbane Airport train can be like a proper big city train an station. In backwards BC, its so difficult to get proper big city size infrastructure built. 

https://upload.wikimedia.org If you are from Brisbane & visiting Vancouver, you will be shocked to see such a short airport train. Being from Vancouver, its difficult to grasp how Brisbane was able to build such nice long trains. This is something to be very proud of, as it can move a lot of people in both directions. https://en.wikipedia.org/wiki/International_Airport_railway_station,_Brisbane This opened in 2001 & Vancouver's inept version had to be ready by 2010 with just 2 car trains. Yet, Brisbane designed their train to be high capacity capable as soon as it open for service. From a backwards BC perspective, it's amazing how Queensland is able to think & function on such a grand scale & to properly allocate the necessary funds. Who knows where so much of the funds went in BC? That's because not enough of it seems to have gone into the infrastructure. 

https:://en.wikipedia.org/wiki/Vancouver_International_Airport#Rapid_transit_(SkyTrain) 

Unfortunately, this is an embarrassment line because, that's not a 4 car train, its only two, 2 car trains on a single track. How can Vancouver ever rank as a proper city & metropolitan area, when the trains are so short & most of the bridges are so narrow? 

https://en.wikipedia.org/wiki/YVR-Airport_station Why have a double track station allowing for at least 155m - 200m long trains? Do it the backwards BC way with only a single track & a 50m station. This isn't just an example of extreme cost-cutting. Its not properly designing crucial transportation infrastructure for eventual high capacity. Fortunately, most proper big urban areas are able to think & build big right from the start. Case in point is Queensland.

https://www.google.com/maps/place/Sir+Leo+Hielscher+Bridges,+Queensland,+Australia

https://upload.wikimedia.org/wikipedia/Gateway_Bridge This 6 lane & then a 12 lane crossing was possible, because Queensland isn't under anything like the backwater BC restrictions. 

https://en.wikipedia.org/wiki/Sir_Leo_Hielscher_Bridges This has the potential to still have 4 lanes each way. Plus, 1 bus lane & 1 HOV lane each way.

https://en.wikipedia.org/wiki/Port_of_Brisbane , https://www.portbris.com.au , 

https://www.portbris.com.au/portbris-2060

Unlike backwards BC, Queensland is able to properly think, plan & build for the future. Queensland just isn't hindered by anything like the BC Mind Virus (BCMV).

The YVR-Canada+Line is almost the worlds shortest train, because it only has 2 cars on a 2 billion dollar line of B$.

https://jfdatalinks.blogspot.com/search?q=old+and+new+narrow+bridges 

https://jfdatalinks.blogspot.com/search?q=Brisbane+Airport+Railway+Line

Vancouver SkyTrain-Canada Line - Richmond–Brighouse to Waterfront

 https://www.youtube.com/watch?v=PdJ9tXAF5s0 

Its very sad that a line which opened in 2009 with only 2 car trains, is still only using 2 car trains in 2026. The logic was to save money on construction, so instead of designing the stations to accommodate at least 5 car trains, there is only enough level clearance for 2.5 car trains, someday. The stations could have been designed with enough level clearance to eventually become doubleted in length. Unfortunately, its like a BC Mind Virus (BCMV) got in the way. The BCMV keeps thwarting so much infrastructure in Canada's most western province. 

For at least the past decade, there should have already been three, 20 m cars forming a 60 m train. Despite the absurd stations having a level clarence of only 50 m, Selective_door_operation could enable 3 car trains, not just some 2.5 car joke of a train. Even if the platforms can't ever be lengthened by 5-10 m, a 3 car train could still mostly have access to a 50 m station. Then with SDO, an extra car at both ends of the middle 3 cars would become a 5 car train.

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

It just would have been so much better if the stations were at least 60 m from the start. 80 m would have been better, but 100 m stations would almost look like a big city train. Unfortunately, the VMC & BCMV mindset keeps reducing the urban scale of things. 

Some other examples are the LGB and the Iron Bridge. The OSB and the KSB...