On 9/6/19 10:45 pm, Prescott wrote:
>
> The acceleration/deceleration of the trains, although far better than
> that of the double deckers, has definitely been "detuned" for "local
> expectations" compared to metro performance overseas. From familiarity
> with this syndrome with local trams, this is a process of dumbing down
> whereby the bureaucrats and engineers decide that the travelling
> public is accustomed to the lethargic pace of, in this case, the
> traditional suburban trains and it is felt that they shouldn't be
> subject to being frightened by being accelerated at warp speeds (which
> I'm sure they wouldn't be because it's smooth electric traction, but
> the bureaucrats think they will).
I think there is far more simpler explanation for the acceleration being
below your expectations. It's not 'detuning'. The Metropolis trains are
generally deployed with a maximum speed of 80km/hr and optimised for
rapid acceleration and braking between closely spaced stations. The
Sydney versions have a 100km/hr top speed and are running with suburban
station spacings. They have changed the gear ratio to get the higher top
speed and sacrificed low end torque for it.