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NY level crossing accident

Discussion concerning level crossings

Re: NY level crossing accident

Unread postby Fast Line Floyd » Mon Feb 9, 2015 11:03 am

The problem here is that the live rail on this particular line is raised much higher than in the UK as it is a bottom contact system rather than the southern of Mersey Rail system which is top contact. in the case of the UK top contact system the rail is not only lower but also has ramps at the start which would tend to lift a car up without disrupting the rail where as the bottom contact system would need a higher section of rail after a gap to bring the train contact down to the correct height making disruption of the rail much more likely.

There are advantages to the bottom contact rail though especially providing better protection from snow and ice.

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Re: NY level crossing accident

Unread postby JRB » Mon Feb 9, 2015 8:54 pm

See it in the UK on DLR.
Last edited by JRB on Tue Mar 24, 2015 10:34 pm, edited 1 time in total.
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Re: NY level crossing accident

Unread postby Fast Line Floyd » Tue Feb 10, 2015 10:25 am

JRB wrote:Se it in the UK on DLR.

Indeed so but fortunately they have no public level crossings!
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Re: NY level crossing accident

Unread postby Adrian the Rock » Sat Feb 14, 2015 10:10 pm

Doesn't Lincoln St crossing in Nottingham still have a set of traffic lights interlinked with its crossing controls? In fact IIRC the setup is even more complex there as the tram line also crosses the road adjacent to the rail crossing.
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Re: NY level crossing accident

Unread postby StevieG » Sun Feb 15, 2015 1:17 am

I've a vague memory of the mid-'70s that operation of the crossing at Sleaford East box, with a very adjacent 'T' junction I think, appeared to be linked with traffic lights.
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Re: NY level crossing accident

Unread postby edwin_m » Sun Feb 15, 2015 10:06 am

Adrian the Rock wrote:Doesn't Lincoln St crossing in Nottingham still have a set of traffic lights interlinked with its crossing controls? In fact IIRC the setup is even more complex there as the tram line also crosses the road adjacent to the rail crossing.

Yes. I think there are quite a few interlinked with traffic lights around the network, though no others with the complications of Lincoln Street.
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Re: NY level crossing accident

Unread postby Andrea » Sun Feb 15, 2015 10:32 am

edwin_m wrote:
Adrian the Rock wrote:Doesn't Lincoln St crossing in Nottingham still have a set of traffic lights interlinked with its crossing controls? In fact IIRC the setup is even more complex there as the tram line also crosses the road adjacent to the rail crossing.

Yes. I think there are quite a few interlinked with traffic lights around the network, though no others with the complications of Lincoln Street.


What is confusing for road users is that at Lincoln Street the barriers are only lowered for a train, not a tram. At the next crossing, Bulwell Forest, the barriers are lowered for both trains and trams to cross. This one does not have road traffic lights even though there is a road junction right next to it. :?
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Re: NY level crossing accident

Unread postby edwin_m » Sun Feb 15, 2015 12:17 pm

Andrea wrote:What is confusing for road users is that at Lincoln Street the barriers are only lowered for a train, not a tram. At the next crossing, Bulwell Forest, the barriers are lowered for both trains and trams to cross. This one does not have road traffic lights even though there is a road junction right next to it. :?

I've replied in a new topic on viewtopic.php?f=10&t=6966, as it's not really on-topic here.
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Re: NY level crossing accident

Unread postby Andrew Waugh » Tue Mar 24, 2015 9:29 am

The two page preliminary report has been released...

http://www.ntsb.gov/investigations/AccidentReports/Reports/DCA15MR006_preliminary.pdf

It appears the NYT report was accurate - at this level of detail anyway.
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Re: NY level crossing accident

Unread postby The Regulator » Mon Mar 30, 2015 5:32 pm

Any crossing which is used by the public can never be 100% safe. No matter what it is CCTV, AHBC, AOCL etc.

Some of the Xing behaviour I have seen over the years you would scarcely believe.
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Re: NY level crossing accident

Unread postby Mike Hodgson » Mon Mar 30, 2015 6:20 pm

Neither can bridges
http://www.raib.gov.uk/publications/cur ... xfield.cfm

It is sufficient to reduce risks to a level that society considers acceptable.
There is a limit to what we are prepared to pay to reduce risks.
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Re: NY level crossing accident

Unread postby John Hinson » Mon Mar 30, 2015 8:09 pm

Mike Hodgson wrote:Neither can bridges
http://www.raib.gov.uk/publications/cur ... xfield.cfm

This incident is under investigation, we do not know all the facts.

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