Mizter T wrote:
On Sep 7, 8:46*pm, Chris Tolley wrote:
Mizter T wrote:
A bus swerving to avoid a car would appear to be the genesis of the
accident. ... *if* (and that is a big if) the traffic signals had in
some way malfunctioned then things would become more interesting
given the interface between highway and tramway signalling.
I don't follow your reasoning. If the genesis of the accident is a bus
swerving to miss a car, then I can't see that the tram's signalling is
in any way implicated.
Sorry, I didn't make myself clear. In Croydon, as is the case
elsewhere with other tram systems, the highway traffic control signals
are linked in to the tram's signalling system so as to enable trams to
negotiate a variety of road junctions - this evidently requires a more
complex set of interlinking/interoperability (or even 'interlocking'
as it were) between the highway signals and the tram network's
signalling system. On top of that one can assume that at least some of
the highway signals in the area are co-ordinated with each other as
part of a traffic management setup (as I'm sure is the case in central
Croydon).
*If* the highway signals (indeed and the tram signals) had
malfunctioned then this could have caused or contributed towards the
car and/or bus (indeed and/or tram) being in the wrong place, hence
the relevance of this factor.
Okay, that's clearer. Thanks.
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