On Apr 10, 11:14*am, D7666 wrote:
On Apr 10, 10:34*am, "Paul Scott"
wrote:

Did you notice the bit in the 'Rolling Stock high level spec' that calls for
full ATO for the core route?

As ATO, signals and signals control systems, headways and capacity are
something I am now involved with professionally, I can't see any
alternative to meet the long term tph targets they are aiming at.

Is that a first for main line commuter stock -

In UK yes - but isn't part of RER through central Paris on some kind
of ATO ?

degraded mode

Degraded modes are part of the specifications of all ATO systems.

~ The capability to move a short distance without the traction supply being
present;"

Where is Sir Isaac Newton ?

--
Nick

Did anyone else spot "Some level of onboard energy storage may provide
an optimal solution overall"?

If you are only running on core routes, surely there will almost
always be other trains in the same section to use the regenerated
energy? North of the Thames, energy could be exported to the grid
anyway, and inverting substations could be considered for the SR
routes.

Energy storage is surely needed only for extremities of the network
where traffic is light - Seaford, Arun Valley, etc. I can't see it
being a problem in the metro area or Brighton main line. Or is it
just in case units have to limp out of sections which have suffered a
loss of traction supply..?