Needham Line Questions

Discussion relating to commuter rail, light rail, and subway operations of the MBTA.

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Bramdeisroberts
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Re: Needham Line Questions

Post by Bramdeisroberts » Wed Feb 14, 2018 9:17 pm

BostonUrbEx wrote:Behold!
It's always good to see someone keeping the memes fresh around here. My favorite transit expanding brain is the BRT one...

scratchy
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Re: Needham Line Questions

Post by scratchy » Thu Feb 15, 2018 12:32 pm

deathtopumpkins wrote:Chicago has plenty of grade crossings on rapid transit:

Skokie Swift: https://goo.gl/maps/2PcGgH7NVTv" onclick="window.open(this.href);return false; (suburan arterial)

Brown line: https://goo.gl/maps/a53AVrYCtnq" onclick="window.open(this.href);return false; (urban street)

Grade crossings are allowed on rapid transit and/or with third rail. They're not ideal, but they're allowed.
The 80s buddy cop action comedy "running scared" had a car chase, onto the CTA tracks from a grade crossing.

ceo
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Re: Needham Line Questions

Post by ceo » Thu Feb 15, 2018 1:01 pm

Just because grade crossings on third-rail-powered lines have been built in the past, doesn't mean anyone (particularly the T) is going to be willing to build them now.

Arborwayfan
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Location: Terre Haute, Indiana

Re: Needham Line Questions

Post by Arborwayfan » Thu Feb 15, 2018 2:43 pm

Oslo has them and they are less than 15 years old. But again, not likely to convince the T or the neighbors.

johnpbarlow
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Re: Needham Line Questions

Post by johnpbarlow » Tue Apr 10, 2018 3:55 pm

New PTC bits installed at Needham Heights station: Looks like transponders have been placed in the gauge just north of the West St grade crossing. Also a new radio antenna (220MHz?) has been erected for wireless communications to train, I believe.
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BandA
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Re: Needham Line Questions

Post by BandA » Tue Apr 10, 2018 9:06 pm

How do they keep the transponders from being vandalized?

ceo
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Re: Needham Line Questions

Post by ceo » Tue Apr 10, 2018 10:21 pm

BandA wrote:How do they keep the transponders from being vandalized?
An abiding faith in the goodness of humanity. That and very sturdy construction, it looks like.

johnpbarlow
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Re: Needham Line Questions

Post by johnpbarlow » Wed Apr 11, 2018 5:16 am

ceo wrote:
BandA wrote:How do they keep the transponders from being vandalized?
An abiding faith in the goodness of humanity. That and very sturdy construction, it looks like.
Plus there are no vandals in Needham! 😎

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BandA
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Re: Needham Line Questions

Post by BandA » Wed Apr 11, 2018 1:21 pm

They did a good job hiding the wiring. Seems like construction of track is highly automated with track laying machines, where signal work is very labor intensive (i.e. costly)

CRail
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Location: Eastie

Re: Needham Line Questions

Post by CRail » Wed Apr 11, 2018 9:17 pm

Track machines are not automated.
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