Comparison of Chicago and Boston RT lines

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Comparison of Chicago and Boston RT lines

Postby Gerry6309 » Fri Feb 13, 2015 1:33 pm

WCVB has compared Boston to Chicago in the ballle with the elements. Here are some further comparisons:

Boston has 3 rapid Transit lines: Red, Orange and Blue, each with its own fleet of cars.
Chicago Has 8 Rapid Transit Lines: Red, Brown, Purple, Yellow, Green, Pink, Blue and Orange sharing one fleet of cars, of similar size to Boston's Blue Line fleet.

Boston's system is entirely on its own right of way.
Chicago's Brown, Yellow, Purple and Pink lines operate partly or entirely on the surface and cross streets at grade.

Boston has no open-deck elevated structures.
Chicago's Brown, Pink and Green lines operate mostly on open deck elevated structures, as do parts of the Red, Purple, Blue and Orange lines.

Small parts of all Boston's lines operate on raised embankments.
Chicago's Red and Green lines operate on long sections of raised embankment.

None of Boston's lines run in Expressway medians.
Chicago's Red and Blue Lines operate in Expressway medians.

All of Boston's lines operate through subways.
Only Chicago's Red and Blue Lines have subways.

So Chicago operates >90% outdoors, while the MBTA is 60% outdoors. Both systems use exposed third rail. No matter how you stack them up, Chicago has more exposed third rail than Boston, yet we suffer far more service interruptions.
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The next stop is Washington. Change for Forest Hills Trains on the Winter St. Platform, and Everett Trains on the Summer St. Platform. This is an Ashmont train, change for Braintree at Columbia.
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Re: Comparison of Chicago and Boston RT lines

Postby CRail » Fri Feb 13, 2015 1:58 pm

Someone should tell this reporter wannabe that if they did 10 seconds of actual research before putting this opinion to the world as fact it would be learned that "open-deck" elevated structures have an OPEN DECK and do not collect snow!
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Re: Comparison of Chicago and Boston RT lines

Postby MACTRAXX » Fri Feb 13, 2015 2:28 pm

Gerry:

Do you have a link to this WCVB report about this comparison between the MBTA and CTA rapid transit routes?

All that would have been needed to know about Chicago's CTA L system can be found at www.chicago-l.org

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Re: Comparison of Chicago and Boston RT lines

Postby Gerry6309 » Fri Feb 13, 2015 3:44 pm

MACTRAXX wrote:Gerry:

Do you have a link to this WCVB report about this comparison between the MBTA and CTA rapid transit routes?

All that would have been needed to know about Chicago's CTA L system can be found at http://www.chicago-l.org

MACTRAXX

It was carried on their noon news, but just made the MBTA's efforts look bad. The point is that Chicago's system is designed to minimize the effects of its exposure, while Boston's system exacerbates the exposure by operating long distances between stops in exposed areas, open cuts and on concrete decks.
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The next stop is Washington. Change for Forest Hills Trains on the Winter St. Platform, and Everett Trains on the Summer St. Platform. This is an Ashmont train, change for Braintree at Columbia.
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Re: Comparison of Chicago and Boston RT lines

Postby Bramdeisroberts » Fri Feb 13, 2015 4:10 pm

Gerry6309 wrote:
MACTRAXX wrote:Gerry:

Do you have a link to this WCVB report about this comparison between the MBTA and CTA rapid transit routes?

All that would have been needed to know about Chicago's CTA L system can be found at http://www.chicago-l.org

MACTRAXX

It was carried on their noon news, but just made the MBTA's efforts look bad. The point is that Chicago's system is designed to minimize the effects of its exposure, while Boston's system exacerbates the exposure by operating long distances between stops in exposed areas, open cuts and on concrete decks.


I'd also be interested in seeing what CTA's snow-clearing roster looks like. Their system has plenty of cuts like ours and their highway-median lines look like they'd be just as drift-prone as the Oak Grove and Braintree branches are, and yet they still don't have the outages we do.

On top of that, most of their EL appears to be closed-deck around their switches (and the complexity of the switching required to keep the loop running makes the Central Subway look like the D Branch), and yet their completely, utterly switch-dependent system still works in the snow while the comparatively simple Red Line junction goes into conniptions at the slightest provocation. If that isn't 100% on the respective MOW crews, then I don't know what is.
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Re: Comparison of Chicago and Boston RT lines

Postby Gerry6309 » Fri Feb 13, 2015 4:28 pm

There is so much traffic through Lake & Wells that the snow doesn't have a chance to accumulate. A worker used to handling "Malfunction Junction" would have a nervous breakdown at Tower 18, and trains would be backed up for miles! Our signal system couldn't handle the headways either.
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The next stop is Washington. Change for Forest Hills Trains on the Winter St. Platform, and Everett Trains on the Summer St. Platform. This is an Ashmont train, change for Braintree at Columbia.
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Re: Comparison of Chicago and Boston RT lines

Postby Bramdeisroberts » Fri Feb 13, 2015 4:47 pm

Gerry6309 wrote:There is so much traffic through Lake & Wells that the snow doesn't have a chance to accumulate. A worker used to handling "Malfunction Junction" would have a nervous breakdown at Tower 18, and trains would be backed up for miles! Our signal system couldn't handle the headways either.


I found another big difference between CTA and the T.

They, despite their less snow-susceptible ROW's, actually have one of these: http://www.transitchicago.com/assets/1/misc_images/snow-remover-infographic.jpg
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Re: Comparison of Chicago and Boston RT lines

Postby Gerry6309 » Fri Feb 13, 2015 5:04 pm

Bramdeisroberts wrote:
Gerry6309 wrote:There is so much traffic through Lake & Wells that the snow doesn't have a chance to accumulate. A worker used to handling "Malfunction Junction" would have a nervous breakdown at Tower 18, and trains would be backed up for miles! Our signal system couldn't handle the headways either.


I found another big difference between CTA and the T.

They, despite their less snow-susceptible ROW's, actually have one of these: http://www.transitchicago.com/assets/1/misc_images/snow-remover-infographic.jpg

They probably need that on the Yellow Line. Six miles through lightly developed territory. It can reach any point on the system without going through a subway, with the exception of the O'Hare section of the Blue Line.
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The next stop is Washington. Change for Forest Hills Trains on the Winter St. Platform, and Everett Trains on the Summer St. Platform. This is an Ashmont train, change for Braintree at Columbia.
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Re: Comparison of Chicago and Boston RT lines

Postby jbvb » Sun Feb 15, 2015 9:33 am

The CTA also has a diesel switcher and some MU cars specially equipped for work duties: viewtopic.php?f=61&t=75163
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Re: Comparison of Chicago and Boston RT lines

Postby Gerry6309 » Sun Feb 15, 2015 10:42 am

jbvb wrote:The CTA also has a diesel switcher and some MU cars specially equipped for work duties: viewtopic.php?f=61&t=75163

The CTA also makes an effort to maintain a parts stock for retired equipment used as work cars and services them on a regular basis. The MBTA runs them til they fail and then they sit until the next scrap drive.
Gerry. STM/BSRA

The next stop is Washington. Change for Forest Hills Trains on the Winter St. Platform, and Everett Trains on the Summer St. Platform. This is an Ashmont train, change for Braintree at Columbia.
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