Article View: la.transportation
Article #112Re: California High Speed Rail.
From: Stephen Sprunk
Date: Fri, 07 Nov 2008 18:16
Date: Fri, 07 Nov 2008 18:16
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3070 bytes
Lüko Willms wrote: > Am Thu, 6 Nov 2008 00:57:43 UTC, schrieb Stephen Sprunk > <stephen@sprunk.org> auf misc.transport.rail.americas : >> CAHSRA is obviously going to have to go with non-FRA trains under some >> sort of waiver to get to their 200mph+ goal. If CalTrain goes non-FRA >> as well, they could share tracks, provided there is sufficient ability >> for the HSTs to pass slower commuter trains. It would really hurt both >> systems to have completely segregated tracks. > > Not if they can share some big stations for interchange between fast > and slow trains. The problem isn't stations or interchange of passengers; the problem is that many parts of the ROW aren't wide enough for four tracks, which means that if commuter and HSR trains can't share, one or the other will have to be single-tracked part of the way, which hurts capacity and causes any late trains to snowball. Even if you could manage to get two tracks for each, multiple stopping patterns (e.g. local commuter, express commuter, local intercity, suburban intercity, nonstop intercity, etc.) are much more difficult; three or four tracks for all trains gives a lot more flexibility -- provided you have sufficient interlockings. S
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X-Google-Thread: 101735,eaa028fe7501658d X-Google-Thread: 1093a2,eaa028fe7501658d X-Google-Thread: fd3ff,eaa028fe7501658d X-Google-Attributes: gid101735,gid1093a2,gidfd3ff,domainid0,public,usenet X-Google-Language: ENGLISH,UTF8 Path: arc1-ca.pugleaf.net!g2news1.google.com!news2.google.com!newsfeed.stanford.edu!headwall.stanford.edu!newshub.sdsu.edu!flpi089.ffdc.sbc.com!prodigy.net!flpi088.ffdc.sbc.com!prodigy.com!flpi107.ffdc.sbc.com!nlpi070.nbdc.sbc.com.POSTED!d82aba2c!not-for-mail From: Stephen Sprunk <stephen@sprunk.org> User-Agent: Thunderbird 2.0.0.17 (Windows/20080914) MIME-Version: 1.0 Newsgroups: la.transportation,misc.transport.rail.americas,misc.transport.rail.misc,ba.transportation Subject: Re: California High Speed Rail. References: <gesom9$gfa$1@registered.motzarella.org> <ba2ee435-8d2a-44ff-904b-17ae23376c4f@p35g2000prm.googlegroups.com> <get2hn$pf3$1@registered.motzarella.org> <874p2lj1aw.fsf@nospam.pacbell.net> <6nepgvFl6qijU1@mid.individual.net> <birQk.5835$c45.3389@nlpi065.nbdc.sbc.com> <czd2LKcn8EGd-pn2-EdvnwU7CE6TD@lueko.willms.dialin.t-online.de> In-Reply-To: <czd2LKcn8EGd-pn2-EdvnwU7CE6TD@lueko.willms.dialin.t-online.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Lines: 24 Message-ID: <%B%Qk.5900$x%.4215@nlpi070.nbdc.sbc.com> NNTP-Posting-Host: 99.136.83.110 X-Complaints-To: abuse@prodigy.net X-Trace: nlpi070.nbdc.sbc.com 1226081787 ST000 99.136.83.110 (Fri, 07 Nov 2008 13:16:27 EST) NNTP-Posting-Date: Fri, 07 Nov 2008 13:16:27 EST Organization: at&t http://my.att.net/ X-UserInfo1: Q[R_PJSCTS@UC^@[[RHROFP@AJYZTB\MV@BT]_MIJQR@EPIB_VUKAH_[MTX\IS[K[NGYJJFNOFZR_G[BUNTAOQLFE^TEHRPI]PZZRP_BMDSFQFL_]CBHXRWCMDCUZAZN@D_AKMNLEI]MWHCSXL^]NNC__CZFGSGHYYXWPFG@SCAVA]\FT\@B\RDGENSUQS^M Date: Fri, 07 Nov 2008 12:16:26 -0600