It's that time again! Ask me about trains.

  • infuziSporg [e/em/eir]
    ·
    1 year ago

    What kind of maintenance do the rails themselves need? About how often do they need to be replaced, and do frequency or weight per wheel of trains have anything to do with this?

    • wtypstanaccount04 [he/him]
      hexagon
      M
      ·
      1 year ago

      A guess based on a Google search suggests a rail lifespan anywhere between 5-99 years. Lightly used industrial spurs could easily have rails that are 90 years old or more, whereas a curved piece of track with high frequency, fast, heavy trains might only last 3-4 years. In terms of maintenance, rail grinding is used to keep to track smooth, and maintenance teams inspect the track periodically (obviously not enough in North America). If I recall correctly in Japan the Shinkansen tracks get inspected every night for safety and upkeep, a great way of keeping high-speed trains safe and fast.

  • quarrk [he/him]
    ·
    edit-2
    1 year ago

    When metros start/stop, I hear what sounds like gears shifting. Are there actually gears in the average metro? Take Berlin for example. I did some casual Googling and it doesn’t seem like they have gears. They do have several motors though. Maybe it’s motors turning on sequentially?

    Sincerely, Guy who knows almost nothing about trains but knows some about cars

  • JuneFall [none/use name]
    ·
    1 year ago

    How hard is it to produce a train?

    • What kind of geological reserves are needed?
    • What kind of assets/capital in machines etc. infrastructure are needed?
    • What amount of knowledge/patents is/are needed?
    • wtypstanaccount04 [he/him]
      hexagon
      M
      ·
      edit-2
      1 year ago

      uh uh uhhhhh IDK

      What I can say is that American manufacturers are not doing well because the buy-American policy combined with the lack of rolling stock being built means that there are several cases where an entire locomotive plant is built that only produces a few trains and is then shut down again, because most of the domestic rail manufacturers have gone out of business (RIP the Budd Company).

      AES countries also give us a hint into how they might work. Cuba does not seem to be able to build new rolling stock thanks to the embargo, and struggles to maintain its railway network. Basically all of the trains are either pre-revolution or an eclectic mix of old rolling stock from around the world. The DPRK does produce its own subway trains but they look a little outdated. China, with its vast industry and large amounts of steel, excels at building trains and has built many over the past decade.

      Edit: Actually I take that comment about the Pyongyang Metro back. The new trains look very comfortable on the inside, are clean, modern, seem to have modern inverter propulsion, and most importantly have nice cushy seats, something lacking on Chinese metros.

      • JuneFall [none/use name]
        ·
        1 year ago

        Cuba does not seem to be able to build new rolling stock thanks to the embargo, and struggles to maintain its railway network.

        This and Mali/Angola are why I thought about what is needed to set up train (and maybe rail) production.

    • wtypstanaccount04 [he/him]
      hexagon
      M
      ·
      1 year ago

      You know I was thinking I would go for the PRR S1 because it's sexy, but then I though that what I really want in a long-term relationship is low maintenance so I'm going with the EMD AEM-7 for high reliability, clean electricity power, and good speed for that nice whooshing action as it passes by. You think you want that sexy train, but what you really want is a stable marriage that always makes the both of you happy consistently.

      • wtypstanaccount04 [he/him]
        hexagon
        M
        ·
        1 year ago

        AEM-7spouse is bound to ask that I take down the S1 pinup that I have on my wall though

    • wtypstanaccount04 [he/him]
      hexagon
      M
      ·
      1 year ago

      They were always cool. In terms of usage, probably making them relevant to war again. Hopefully that never comes to pass unless in class war.

  • Ossay [he/him]
    ·
    1 year ago

    why are they called trains and not steel horses

    • wtypstanaccount04 [he/him]
      hexagon
      M
      ·
      1 year ago

      First off I love the profile pic, wasn't that the anti-whale article guy?

      Secondly best train is subjective (obviously). I can't really say, but one thing I do kinda want to talk about are trains ahead of their time. The Rocket achieved 30mph in 1829 and was cutting-edge at the time.

      Also of note was the AEG Experimental three-phase railcar which achieved 130mph in 1903, only 100 years after Trevithick's first steam locomotive in 1803. 210km/h is what the Shinkansen was scheduled at in the 60s, and contemporary trains rarely went above 80mph on the fastest expresses.

    • wtypstanaccount04 [he/him]
      hexagon
      M
      ·
      1 year ago

      There's so many good options but one that came to mind was the Minneapolis Airport C concourse people mover, because it has cable-hauled automated trains with a passing loop and a bizarre determination to only have doors on one side of the train, so there are two platforms for the center station on the same side dedicated to different directions.

    • wtypstanaccount04 [he/him]
      hexagon
      M
      ·
      edit-2
      1 year ago

      Suborno Express Chattogram–Dhaka
      703–704 Mohanagar Provati/Godhuli Express Chattogram–Dhaka
      705–706 Ekota Express Dhaka–Panchagarh
      707–708 Tista Express Dhaka–Dewanganj
      709–710 Parabat Express Dhaka–Sylhet
      711–712 Upakul Express Noakhali–Dhaka
      713–714 Karatoya Express Santahar–Burimari
      715–716 Kapotaksha Express Khulna–Rajshahi
      717–718 Jayantika Express Dhaka–Sylhet
      719–720 Paharika Express Chattogram–Sylhet
      721–722 Mohanagar Express Chattogram–Dhaka
      723–724 Udayan Express Chattogram–Sylhet
      725–726 Sundarban Express Khulna–Dhaka
      727–728 Rupsha Express Khulna–Chilahati
      729–730 Meghna Express Chattogram–Chandpur
      731–732 Barendra Express Rajshahi–Chilahati
      733–734 Titumir Express Rajshahi–Chilahati
      735–736 Agnibina Express Dhaka–Tarakandi
      737–738 Egarosindhur Provati Dhaka–Kishoreganj
      739–740 Upaban Express Dhaka–Sylhet
      741–742 Turna Express Chattogram–Dhaka
      743–744 Brahmaputra Express Dhaka–Dewanganj
      745–746 Jamuna Express Dhaka–Tarakandi
      747–748 Simanta Express Khulna–Chilahati
      749–750 Egarosindhur Godhuli Dhaka–Kishoreganj
      751–752 Lalmoni Express Dhaka–Lalmonirhat
      753–754 Silkcity Express Dhaka–Rajshahi
      755–756 Madhumati Express Goalanda Ghat–Rajshahi
      757–758 Drutojan Express Dhaka–Panchagarh
      759–760 Padma Express Dhaka–Rajshahi
      761–762 Sagardari Express Khulna–Rajshahi
      763–764 Chitra Express Khulna–Dhaka
      765–766 Nilsagar Express Dhaka–Chilahati
      767–768 Dolonchapa Express Santahar–Dinajpur
      769–770 Dhumketu Express Dhaka–Rajshahi
      771–772 Rangpur Express Dhaka–Rangpur
      773–774 Kalni Express Dhaka–Sylhet
      775–776 Sirajganj Express Sirajganj–Dhaka
      777–778 Haor Express Dhaka–Mohanganj
      779–780 Dhalarchar Express Dhalarchar–Rajshahi
      781–782 Kishoreganj Express Dhaka–Kishoreganj
      783–784 Tungipara Express Gobra–Rajshahi
      785–786 Bijoy Express Chattogram–Mymensingh
      787–788 Shonar Bangla Express Chattogram–Dhaka
      789–790 Mohanganj Express Dhaka–Mohanganj
      791–792 Banalata Express Dhaka–Chapai Nawabganj
      793–794 Panchagarh Express Dhaka–Panchagarh
      795–796 Benapole Express Benapole–Dhaka
      797–798 Kurigram Express Dhaka–Kurigram
      799–800 Jamalpur Express Dhaka–Jamalpur
      801–802 Chattala Express Chattogram–Dhaka
      803–804 Banglabandha Express Rajshahi–Panchagarh
      1 Dhaka Mail Chattogram Dhaka
      2 Chattogram Mail Dhaka Chattogram
      3 Karnaphuli Express Chattogram Dhaka
      4 Dhaka Chattogram
      5 Rajshahi Express Dhaka Chapai Nawabganj
      6 Chapai Nawabganj Ishwardi
      7 Uttarbanga Mail Santahar Panchagarh
      8 Panchagarh Santahar
      9 Surma Mail Dhaka Sylhet
      10 Sylhet Dhaka
      11 Dhaka Express Noakhali Dhaka
      12 Noakhali Express Dhaka Noakhali
      13 Jalalabad Express Chattogram Sylhet
      14 Sylhet Chattogram
      15 Mahananda Express Khulna Chapai Nawabganj
      16 Chapai Nawabganj Khulna
      17 Kushiara Express Akhaura Sylhet
      18 Sylhet Akhaura
      19 Bogura Express Santahar Lalmonirhat
      20 Lalmonirhat Santahar
      21 Padmarag Express Santahar Lalmonirhat
      22 Lalmonirhat Santahar
      23 Rocket Express Khulna Parbatipur
      24 Parbatipur Khulna
      25 Nakshikantha Express Khulna Goalanda Ghat
      26 Goalanda Ghat Khulna
      27 Chilahati Express Parbatipur Chilahati
      28 Chilahati Parbatipur
      29 Sagarika Express Chattogram Chandpur
      30 Chandpur Chattogram
      31 Uttara Express Rajshahi Parbatipur
      32 Parbatipur Rajshahi
      33 Titas Commuter Akhaura Dhaka
      34 Dhaka Brahmanbaria
      35 Brahmanbaria Dhaka
      36 Dhaka Akhaura
      37 Mymensingh Express Chattogram Bangabandhu Bridge East
      38 Bangabandhu Bridge East Chattogram
      39 Isakhan Express Dhaka Mymensingh
      40 Mymensingh Dhaka
      41 Kanchan Commuter Parbatipur Panchagarh
      42 Panchagarh Parbatipur
      43 Mohua Commuter Dhaka Mohanganj
      44 Mohanganj Dhaka
      45 Samatat Express Noakhali Laksam
      46 Laksam Noakhali
      47 Dewanganj Commuter Dhaka Dewanganj
      48 Dewanganj Dhaka
      49 Balaka Commuter Dhaka Jharia Jhanjail
      50 Jharia Jhanjail Dhaka
      51 Jamalpur Commuter Dhaka Dewanganj
      52 Dewanganj Dhaka
      53 Betna Express-1 Khulna Benapole
      54 Betna Express-4 Benapole Khulna
      55 Bhawal Express Dhaka Dewanganj
      56 Dewanganj Dhaka
      57 Rohanpur Commuter Ishwardi Rohanpur
      58 Rajshahi Commuter Rohonpur Rajshahi
      59 Ramsagar Express Bonarpara Dinajpur
      60 Dinajpur Bonarpara
      61 Dinajpur Commuter Lalmonirhat Biral
      62 Biral Lalmonirhat
      63 Lalmoni Commuter Lalmonirhat Parbatipur
      64 Parbatipur Lalmonirhat
      65 Burimari Commuter-1 Lalmonirhat Burimari
      66 Burimari Commuter-2 Burimari Lalmonirhat
      69 Parbatipur Commuter Lalmonirhat Parbatipur
      70 Parbatipur Lalmonirhat
      71 Burimari Commuter-3 Lalmonirhat Burimari
      72 Burimari Commuter-4 Burimari Lalmonirhat
      75 Dholeshwari Express Mymensingh Bangabandhu Bridge East
      76 Bangabandhu Bridge East Mymensingh
      77 Rohanpur Commuter Rajshahi Rohanpur
      78 Ishwardi Commuter Rohanpur Ishwardi
      79 Laksam Commuter Chattogram Cumilla
      80 Cumilla Chattogram
      81 Chandpur Commuter Chandpur Laksam
      82 Laksam Chandpur
      83 Chandpur Laksam
      84 Laksam Chandpur
      85 Noakhali Commuter Noakhali Laksam
      86 Laksam Noakhali
      87 Noakhali Laksam
      88 Laksam Noakhali
      89 Cumilla Commuter Cumilla Dhaka
      90 Dhaka Cumilla
      91 Mymensingh Commuter Joydebpur Mymensingh
      92 Mymensingh Joydebpur
      93 Sylhet Commuter Akhaura Sylhet
      94 Sylhet Akhaura
      95 Betna Express-3 Khulna Benapole
      96 Betna Express-2 Benapole Khulna
      97 Kurigram Shuttle Kurigram Lalmonirhat
      98 Lalmonirhat Kurigram

      That's every named train in Bangladesh. Need more?

    • wtypstanaccount04 [he/him]
      hexagon
      M
      ·
      1 year ago

      Battery electric is dumb, don't do that ever, unless you are gigachad enough to do it with lead-acid batteries on branch lines only. Overhead is objectively the best form of electrification, although I like the aesthetics of third rail better. Third rail can only be DC, as AC is too dangerous, but overhead wire can be DC or AC. One little detail I think should be in consideration for overhead electrification is putting the poles in between the two tracks so the scenic views don't get blocked.

  • wtypstanaccount04 [he/him]
    hexagon
    M
    ·
    1 year ago

    Ok I got to go right now but keep asking questions and when I get back I'll try my best to answer

  • FALGSConaut [comrade/them]
    ·
    1 year ago

    I don't really have a question, I just want to say electric-steam locomotives are the coolest and I want more of them, practicality be damned

  • MaoTheLawn [any, any]
    ·
    1 year ago

    How do those new chinese trains work that seem to not be touching the tracks?

    What's your solution to the London Underground heat sink problem?

    This one's not really a question but a plug. Did you know about the Soviet travelling film trains?

    • wtypstanaccount04 [he/him]
      hexagon
      M
      ·
      1 year ago

      That's maglev technology that you see them using. Maglevs use electromagnets to levitate above the track and achieve high speeds.

      The London Underground could really use some air conditioning both in stations and on trains. The proper solution to the problem I think would be to build more ventilation shafts to let out hot air. One of my favorite Youtube channels is Jago Hazzard, a Youtuber who makes short little videos about London trains. He's made a video on hot underground trains before.

      I did know of the Soviet traveling film trains, they are cool as hell. Bring back doing literally everything with trains.