On Tue, 16 Aug 2022 at 18:00, 'bblunt3473@yahoo.com' via TramsDownUnder < tramsdownunder@...> wrote:

>

>

> I was in New York a few years ago and I recall a station on very tight

> curve. There were extendable mechanical fillers used to bridge the

> considerable gaps. I can't remember whether they were under the carriage

> floor, or under the platform copings.

>


I gather they are under the platform face and interlocked to the signalling
so that the departure signal stays at stop until the plates are retracted
properly.

I've been on a number of European trains where a step plate either slides
out or unfolds as the doors open.