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View Diary: Sunday Train: Faster Trains Yields More Services Per Day (23 comments)

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  •  Good train scheduling (3+ / 0-)
    Recommended by:
    BruceMcF, Woody, RunawayRose

    Scales to demand and schedules preventative maintenance on downtime.

    This may include:

    - A mix of express (main stops) and local trains (all stops).

    - A mix of lines, short and long run

    - A mix of train lengths (fewer/more cars)

    - Rational/flexible design of networks to provide options and maximize flexibility

    It's a really deep subject, you are brave to attack it in a diary!

    What about my Daughter's future?

    by koNko on Sun May 13, 2012 at 07:25:26 PM PDT

    •  As I said ... (3+ / 0-)
      Recommended by:
      Woody, koNko, RunawayRose

      ... none of these are presented as any kind of optimum schedule ~ for one thing, a detailed operating speed profile is required to see whether the crossing moves are happening at appropriate locations, since both of these corridors will be a mix of single track and double track ...

      ... but working through a notional scheduling exercise gives a lot more appreciation for the tradeoffs that route planners face.

      The issue of train lengths is substantially different between short corridors and long corridors. For long corridors, its not possible to have lengths tailored closely to demand conditions, but it is possible to (1) tailor prices to demand, shifting price sensitive travelers to off-peak-demand services with off-peak discounts ~ Cityrail in NSW Australia relies heavily on this approach and (2) operate trains that are two consists coupled together, and when passing from a higher demand corridor segment to a lower demand segment, drop off one consist, to be picked up by the next train coming back the other way.

      However, for long corridors one also must accept that if you are providing sufficient capacity for peak demand along the corridor, that same train will have a number of empty seats on a different part of the route. One might aim for 70% to 80% average occupancy for a short corridor route or for an Express HSR service by tailoring capacity to demand, but longer corridors are more likely to be aiming at occupancies in the range of 60%.

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      by BruceMcF on Sun May 13, 2012 at 08:10:12 PM PDT

      [ Parent ]

      •  One the great things about e-tickting (2+ / 0-)
        Recommended by:
        BruceMcF, RunawayRose

        Is flexible pricing with early-bird discounts. If I pass through the gate at my local station by 7:20 I get 20% discount, if by 06:30 30%. So usually I go early and have breakfast on the other end - it's covered by the amount of fare discount.

        Who doesn't want to ride cheaper is a less crowded car and have a free meal?

        What about my Daughter's future?

        by koNko on Mon May 14, 2012 at 03:24:16 AM PDT

        [ Parent ]

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