it's a metro prototype it will soon disappear it has been in circulation for 35 years we will receive new trains very soon you are lucky to be able to benefit from them
Yes, it was supposed to reduce wear on the rails or something like that (Perhaps these trains would be more successful if they just used standard bogies throughout)
To make it simple, the first axle does not support the train weight. Its only purpose is to record the profile of the track. The other axles are equipped with a differential and are able to steer progressively thanks to the info given by this leading axle. The goal was to reduce track screeching noise and wear. It effectively kind of reduced the noise in curves but wear became worse. That’s without talking about structural defects and other reliability issues.
No, that's Paris extremely high population density... In these areas of Paris some neighborhoods exceed 45k inhabitants per square kilometer. Plus, it's a very hilly area, with steep streets and others that are winding. That's a stop every 400 to 500 meters, which is pretty normal in Paris, but on the surface it could be longer due to the winding and-or steep street layout. The initial idea for the Paris metro was to ensure that virtually no location in the core city would be farther than 500 meters away from a station. There's no "last mile" issue there. For longer distances at higher speeds, there's the RER, which is the regional express heavy metro network, and the express metro lines 14, and future 15, 16, 17, and 18. M15 will be a huge 75k long, fully underground loop around the core, and its Southern section will open in late 2025. M14 was recently extended down to Orly airport in the South (Paris second international airport) and to Saint-Denis Pleyel in the North which will become Grand Paris Express' main hub. Lines 14 was opened as fully automated driverless, and all 4 new Grand Paris Express lines will also be fully automated. While lines 1 and 4, respectively opened in 1900 and 1908, were converted to full driverless automation some years ago. Line 1 has 25 stations over roughly 10 miles, and station spacing is also between 400 to 600 meters in the core city. This doesn't stop the line from carrying about 800k passengers daily. There are plenty of stations in New York that have less than 500 meters between them. Like the 1 train that has stations with less than 400 meters between them. When there's high population density it's pretty normal...
Line 1,4,14 => fully driverless Line 3bis,7bis,10 => driver without automatic train operation All other lines => driver with automatic train operation possible. The train can either be driven manually or automatically. If driven automatically the driver will only have to open/close the doors and check everything is normal. All lines of Paris metro which have drivers are one man operated. Conductors have disappeared a long time ago on Paris metro.
![[Metro Cab Ride] Ligne 7bis du Métro de Paris/Louis Blanc → Pré-Saint-Gervais](/img/n.gif)
the acceleration sound on these trains sound like the Mark 1 Trains of Toronto's Scarborough RT, Vancouver's Skytrain and the Detroit People Mover
I think they are closer to the Citadis Spirit in Ottawa
GEC-Alstom GTO VVVF....Seoul métro serie 4000-7000-8000 are the closer for the sound
As a montrealer visiting Pre st gervais was a litteraly a must, as without the mp-51 the rubber tired metro would not exist!
The propulsion on these is the best part, if I'm in Paris before these get replaced with the MF 19's, i'll have to ride this line
Creepy is an interesting word to use, I find this really fun to ride
Definitely my favorite Paris Metro trains, the MF88!
it's a metro prototype it will soon disappear it has been in circulation for 35 years we will receive new trains very soon you are lucky to be able to benefit from them
So thats what the PST-4 sounds like
GEC Alsthom GTO-VVVF 😍
Nice work DJ I love it 5:50
Looks oddly ghostly, like the brooklyn bridge loop.
Interesting video💚👌👍
They sound very similar to MTA's R211 fleets.
no way
0:52 PST4R WARNING?!?
Now I know where PTA got the PST-4 propulsion from.
In what way is it “ creepy” and the cars “strange”.
The front of the car has 2 wheels while the end of the car has 1 wheel?
Yes, it was supposed to reduce wear on the rails or something like that
(Perhaps these trains would be more successful if they just used standard bogies throughout)
These are axles to be able to pass through curves better compared to bogies, but it is not effective.
To make it simple, the first axle does not support the train weight. Its only purpose is to record the profile of the track.
The other axles are equipped with a differential and are able to steer progressively thanks to the info given by this leading axle.
The goal was to reduce track screeching noise and wear.
It effectively kind of reduced the noise in curves but wear became worse. That’s without talking about structural defects and other reliability issues.
They’re aging pretty bad
They’re between 30 and 32 years old and never been refurbished, that’s not bad for a prototype to last that long.
8 Stations in 2mi. ?!
That's absurd.
No, that's Paris extremely high population density...
In these areas of Paris some neighborhoods exceed 45k inhabitants per square kilometer.
Plus, it's a very hilly area, with steep streets and others that are winding.
That's a stop every 400 to 500 meters, which is pretty normal in Paris, but on the surface it could be longer due to the winding and-or steep street layout.
The initial idea for the Paris metro was to ensure that virtually no location in the core city would be farther than 500 meters away from a station.
There's no "last mile" issue there.
For longer distances at higher speeds, there's the RER, which is the regional express heavy metro network, and the express metro lines 14, and future 15, 16, 17, and 18.
M15 will be a huge 75k long, fully underground loop around the core, and its Southern section will open in late 2025.
M14 was recently extended down to Orly airport in the South (Paris second international airport) and to Saint-Denis Pleyel in the North which will become Grand Paris Express' main hub.
Lines 14 was opened as fully automated driverless, and all 4 new Grand Paris Express lines will also be fully automated.
While lines 1 and 4, respectively opened in 1900 and 1908, were converted to full driverless automation some years ago.
Line 1 has 25 stations over roughly 10 miles, and station spacing is also between 400 to 600 meters in the core city. This doesn't stop the line from carrying about 800k passengers daily.
There are plenty of stations in New York that have less than 500 meters between them.
Like the 1 train that has stations with less than 400 meters between them.
When there's high population density it's pretty normal...
Is this Metro train no conductor? do have metro is one man oprater?
There’s no conductors but only drivers, they open and close doors and 3 lines are driverless for the moment.
Line 1,4,14 => fully driverless
Line 3bis,7bis,10 => driver without automatic train operation
All other lines => driver with automatic train operation possible. The train can either be driven manually or automatically. If driven automatically the driver will only have to open/close the doors and check everything is normal.
All lines of Paris metro which have drivers are one man operated. Conductors have disappeared a long time ago on Paris metro.
woah
Why are metro systems in the west are so unkept and dirty.
It's not dirty, it's a century old and built in waterlogged terrain causing infiltrations.