100% low floor + pivoting bogies

 
  Myrtone Chief Commissioner

Location: North Carlton, Melbourne, Victoria
It has been 10 years since Skoda Transportation launched the 15T with 100% low floor as well as pivoting bogies and bogies under articulations. But even now, most new low floor rolling stock still has fixed bogies and short carbody sections.

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  matthewg Train Controller

It has been 10 years since Skoda Transportation launched the 15T with 100% low floor as well as pivoting bogies and bogies under articulations. But even now, most new low floor rolling stock still has fixed bogies and short carbody sections.
Myrtone
Because the price is the leading factor when choosing a tram, not the riding qualities or the damage it will do the tracks.

The Škoda 15T, the Bombardier Flexity Swift (Melbourne E) and  Alstom's Citadis Dualis have 4 bogies per 30m of tram instead of 3 bogies per 30m of tram. That extra hardware adds to the base cost of the vehicle, and with the price being the leading influencer of vehicle choice, these designs get knocked out early.

Basically, they only get chosen if the operator specifically pays more for a 'low track impact' tram or needs high running speed for 'tram-train' operation. (Which is were Alstom target the Dualis)
  Myrtone Chief Commissioner

Location: North Carlton, Melbourne, Victoria
Because the price is the leading factor when choosing a tram, not the riding qualities or the damage it will do the tracks.
matthewg
Is that especially the case for newbuild systems?

The Škoda 15T, the Bombardier Flexity Swift (Melbourne E) and  Alstom's Citadis Dualis have 4 bogies per 30m of tram instead of 3 bogies per 30m of tram. That extra hardware adds to the base cost of the vehicle, and with the price being the leading influencer of vehicle choice, these designs get knocked out early.
matthewg
Isn't 4 bogies per 30m about the same number of bogies per unit of length as all non-vintage high floor trams?

Basically, they only get chosen if the operator specifically pays more for a 'low track impact' tram or needs high running speed for 'tram-train' operation. (Which is were Alstom target the Dualis)
matthewg
How unlikely is it that those running completely new vehicles on completely new track would want low track impact? Pivoting bogie designs apparently perform better on tight curves (say less than 20m radius), but it seems that builders of new systems simply build them without such curves.

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