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	<title>Comments on: White Plains Line (5) Express service suspended until November</title>
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	<link>http://secondavenuesagas.com/2009/08/25/white-plains-line-5-express-service-suspended-until-november/</link>
	<description>A New York City Subway Blog</description>
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		<title>By: TCeez</title>
		<link>http://secondavenuesagas.com/2009/08/25/white-plains-line-5-express-service-suspended-until-november/#comment-64133</link>
		<dc:creator>TCeez</dc:creator>
		<pubDate>Wed, 26 Aug 2009 14:44:18 +0000</pubDate>
		<guid isPermaLink="false">http://secondavenuesagas.com/?p=3743#comment-64133</guid>
		<description>The signal modernization on IRT lines would place them at the back of the line for CBTC upgrades.

These upgrades mean the 5 line will be in a signal State of Good repair so therefore not a CBTC priority

The lines that have NOT YET recieved upgrades (Most of the IND/BMT) would leapfrog these updates and go straight to CBTC.

CBTC on the IRT during the next upgrade cycle, probably 50 years.</description>
		<content:encoded><![CDATA[<p>The signal modernization on IRT lines would place them at the back of the line for CBTC upgrades.</p>
<p>These upgrades mean the 5 line will be in a signal State of Good repair so therefore not a CBTC priority</p>
<p>The lines that have NOT YET recieved upgrades (Most of the IND/BMT) would leapfrog these updates and go straight to CBTC.</p>
<p>CBTC on the IRT during the next upgrade cycle, probably 50 years.</p>
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		<title>By: Benjamin Kabak</title>
		<link>http://secondavenuesagas.com/2009/08/25/white-plains-line-5-express-service-suspended-until-november/#comment-64129</link>
		<dc:creator>Benjamin Kabak</dc:creator>
		<pubDate>Wed, 26 Aug 2009 12:54:16 +0000</pubDate>
		<guid isPermaLink="false">http://secondavenuesagas.com/?p=3743#comment-64129</guid>
		<description>I was under the impression that the MTA was undergoing signal modernization work throughout the system in order to provide for the capacity to bring CBTC online in the future. Part of the MTA&#039;s current plans to alleviate overcrowding along the IRT lines involves introducing CBTC to those lines. I could be wrong though.</description>
		<content:encoded><![CDATA[<p>I was under the impression that the MTA was undergoing signal modernization work throughout the system in order to provide for the capacity to bring CBTC online in the future. Part of the MTA&#8217;s current plans to alleviate overcrowding along the IRT lines involves introducing CBTC to those lines. I could be wrong though.</p>
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		<title>By: Andrew</title>
		<link>http://secondavenuesagas.com/2009/08/25/white-plains-line-5-express-service-suspended-until-november/#comment-64128</link>
		<dc:creator>Andrew</dc:creator>
		<pubDate>Wed, 26 Aug 2009 11:32:06 +0000</pubDate>
		<guid isPermaLink="false">http://secondavenuesagas.com/?p=3743#comment-64128</guid>
		<description>CBTC doesn&#039;t need wayside signals at all, except as a backup to accommodate non-CBTC-compatible trains.  The wayside signals on the rest of the White Plains Road line were just replaced in the past few years, and I haven&#039;t seen any mention of new CBTC-equipped cars (or new CBTC equipment added to existing cars) for the 2 and 5.  This clearly isn&#039;t a CBTC project.  This is merely a replacement of old signals with new ones, along with a new signal design and connection to ATS.  (ATS has nothing to do with CBTC - ATS is already up and running on most of the IRT.)

And OPTO has nothing whatsoever to do with the signal system - in fact, OPTO is already used on the late night 5 shuttle, and has been for about 10 years (before the R142&#039;s arrived, I remember riding R62A&#039;s on the late night shuttle, borrowed from the 6).  The only possible connection - and this is a labor issue, not a technical issue - is that it&#039;s easier to argue for OPTO in an ATO world, where the train operator isn&#039;t actively operating the train.  That&#039;s certainly not coming any time soon to the 2 or 5!</description>
		<content:encoded><![CDATA[<p>CBTC doesn&#8217;t need wayside signals at all, except as a backup to accommodate non-CBTC-compatible trains.  The wayside signals on the rest of the White Plains Road line were just replaced in the past few years, and I haven&#8217;t seen any mention of new CBTC-equipped cars (or new CBTC equipment added to existing cars) for the 2 and 5.  This clearly isn&#8217;t a CBTC project.  This is merely a replacement of old signals with new ones, along with a new signal design and connection to ATS.  (ATS has nothing to do with CBTC &#8211; ATS is already up and running on most of the IRT.)</p>
<p>And OPTO has nothing whatsoever to do with the signal system &#8211; in fact, OPTO is already used on the late night 5 shuttle, and has been for about 10 years (before the R142&#8242;s arrived, I remember riding R62A&#8217;s on the late night shuttle, borrowed from the 6).  The only possible connection &#8211; and this is a labor issue, not a technical issue &#8211; is that it&#8217;s easier to argue for OPTO in an ATO world, where the train operator isn&#8217;t actively operating the train.  That&#8217;s certainly not coming any time soon to the 2 or 5!</p>
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		<title>By: Adam G</title>
		<link>http://secondavenuesagas.com/2009/08/25/white-plains-line-5-express-service-suspended-until-november/#comment-64122</link>
		<dc:creator>Adam G</dc:creator>
		<pubDate>Wed, 26 Aug 2009 04:57:07 +0000</pubDate>
		<guid isPermaLink="false">http://secondavenuesagas.com/?p=3743#comment-64122</guid>
		<description>Andrew, you can&#039;t use the existing wayside signals for CBTC. Wiring and infrastructure for the train control computers to read to be able to track position and velocity needs to be put into place.</description>
		<content:encoded><![CDATA[<p>Andrew, you can&#8217;t use the existing wayside signals for CBTC. Wiring and infrastructure for the train control computers to read to be able to track position and velocity needs to be put into place.</p>
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		<title>By: Andrew</title>
		<link>http://secondavenuesagas.com/2009/08/25/white-plains-line-5-express-service-suspended-until-november/#comment-64117</link>
		<dc:creator>Andrew</dc:creator>
		<pubDate>Wed, 26 Aug 2009 01:26:32 +0000</pubDate>
		<guid isPermaLink="false">http://secondavenuesagas.com/?p=3743#comment-64117</guid>
		<description>CBTC and OPTO?  What does this have to do with CBTC and OPTO?</description>
		<content:encoded><![CDATA[<p>CBTC and OPTO?  What does this have to do with CBTC and OPTO?</p>
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