tag:blogger.com,1999:blog-8419444332771213285.post296700138882960397..comments2024-03-28T11:51:19.078-07:00Comments on Caltrain HSR Compatibility Blog: The Great Platform Construction ExtravaganzaClemhttp://www.blogger.com/profile/01374282217135682245noreply@blogger.comBlogger42125tag:blogger.com,1999:blog-8419444332771213285.post-29114287272844365982014-06-28T15:51:50.373-07:002014-06-28T15:51:50.373-07:00This comment has been removed by the author.Wellshttps://www.blogger.com/profile/12779397257251198065noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-48737442447715399022014-06-28T15:34:22.500-07:002014-06-28T15:34:22.500-07:00I'll just leave a note;
Came looking for rend...I'll just leave a note; <br />Came looking for renderings of new Caltrans equipment.<br />Please direct to or provide link. I'm looking for answers as to <br />platform height compatability Talgo or Talgo-type. <br />Yes, it's THAT guy again. I'd like to see cross-country trains compatable, why not? Anyway. I've mostly been fair enough until you guys hammer me as a dumbass. I'm actually accomplished: <br />San DiegoTrolley Mission Valley Line, West Coast LRT. I'm not accepting blame for Seattle worst case examples of Streetcar, Sounder & Link LRT. Silicon Valley, meet Microsoft. BOTH doing GREAT rail, sorta, not really. Oh but MAX is so slow the complaint sounds, BUT, traffic is actually managed. I fought 1995-98 against MAX S/N while guys like you defended it. I built support for replacements I-MAX Yellow Line, Green Line Transit Mall, and now Milwaukie MAX for guys like you. Impact reduction, major improvements, costs savings. I worked on Denver and SLC light rail. Honolulu. Portland Streetcar. Maybe I just don't speak your language, but, as Einstein said: Faster is slower and slower is faster. If you want to go faster, go slower. And if you do NOT want to go slower, do not go faster.<br />Okay, it was just me that said that. Einstein could've said it.Wellshttps://www.blogger.com/profile/12779397257251198065noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-48022201956199719672014-06-28T13:18:37.405-07:002014-06-28T13:18:37.405-07:00I believe Caltrain also runs double-headers when i...I believe Caltrain also runs double-headers when it needs to move a locomotive from one end of the line to the other for maintenance or other reasons.<br /><br />Of course, If it's not running -- or not running well -- dead-heading it as a "light engine" (RR lingo for locomotive w/o cars) doesn't make much sense anyway.<br /><br />And, as Clem mentioned, using two locos on extra long or special trains helps boost reliability and acceleration performance. Yes, if one loco craps out, you can still continue on with it DIT (dead-in-train).Reality Checknoreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-2810586086820757752014-06-28T09:56:14.150-07:002014-06-28T09:56:14.150-07:00I think this might be for reliability reasons. So...I think this might be for reliability reasons. Some of the locomotives are likely more trouble-prone than others, and if you stick two bad ones together they will have a better system reliability (assuming one can fail without affecting the other) than a single good one. That's my speculation anyway...Clemhttps://www.blogger.com/profile/01374282217135682245noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-17530607977730674582014-06-25T19:23:05.060-07:002014-06-25T19:23:05.060-07:00I sometimes see the consist with two locomotive. I...I sometimes see the consist with two locomotive. I don't know why Caltrain do this but they have one or two extra locomotive. So, Caltrain can add one or two more train consists without changing their discipline.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-55368719101678818452014-06-25T05:40:34.324-07:002014-06-25T05:40:34.324-07:00In Japan, the step up is intentional- apparently, ...In Japan, the step up is intentional- apparently, having the car floor level with platform actually increases the chances of people tripping or falling into the gap, as they tend to ignore the risk- having a step up or down (when exiting the train) makes people more aware of where they plant their feet. Of course, this makes wheelchair boarding w/o assistance impossible- but this may also be intentional- to reduce railway liability, and possible delays in boarding, especially in the peak- as you all know, dwell times are timed to the second in Japan.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-35542501447198632152014-06-24T20:33:05.249-07:002014-06-24T20:33:05.249-07:00Look at the video linked above. There is a signif...Look at the video linked above. There is a significant gap and a significant step up that one would have to mind.Clemhttps://www.blogger.com/profile/01374282217135682245noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-71313569530743654332014-06-24T17:52:04.048-07:002014-06-24T17:52:04.048-07:00Caltrain's capacity analysis considered this v...Caltrain's <a href="http://www.caltrain.com/Assets/Caltrain+Modernization+Program/Documents/Final-Caltrain-California+HSR+Blended+Operations+Analysis.pdf" rel="nofollow">capacity analysis</a> considered this very question. They showed a 90-second headway on successive departing trains eventually converged to about 180 seconds for two successive locals. If the first train is an express, however, there is no delay to the following local when the local departs 90 seconds after the express. So 90 seconds seems feasible *after* the overtake. It's the part *before* the overtake that gets dicey, especially when you throw in random delays. As the Japanese know, punctuality (to levels never achieved on Caltrain) is the key to successful overtakes.Clemhttps://www.blogger.com/profile/01374282217135682245noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-57818894314267450492014-06-24T00:07:01.588-07:002014-06-24T00:07:01.588-07:00eventually the express is going to catch up with t...eventually the express is going to catch up with the local ahead of it. One minute headway and 20 seconds for the local to slow down, stop and accelerate how many stops does the local ahead of the express get before they are both in the same place as the same time. Adirondacker12800https://www.blogger.com/profile/17108712932656586797noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-84363058459056609852014-06-23T23:23:38.698-07:002014-06-23T23:23:38.698-07:00Why can't you have 1-minute headways for local...Why can't you have 1-minute headways for local trains following express trains? The minimum headway on an all-local line is really a combination of stopping distance and station dwell, and if the train that's ahead is not making a stop anytime soon whereas the train that's behind is, it allows much shorter headways than the usual.Alonhttps://www.blogger.com/profile/17267294744186811858noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-18806609735971146272014-06-23T23:18:06.204-07:002014-06-23T23:18:06.204-07:00Can people in wheelchairs not board on their own?Can people in wheelchairs not board on their own?Alonhttps://www.blogger.com/profile/17267294744186811858noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-436772525603160292014-06-22T12:39:14.524-07:002014-06-22T12:39:14.524-07:00It's better, yes, but you're still limited...It's better, yes, but you're still limited by the signaling system and safe deceleration time. You're not going to get 1 minute headways.Joeyhttps://www.blogger.com/profile/16406340564037825796noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-19110569508372202662014-06-22T06:13:47.334-07:002014-06-22T06:13:47.334-07:00Minimum headway behind a train leaving a station i...Minimum headway behind a train leaving a station is determined partly by the acceleration of that train, though. Which makes sense: the faster the train ahead of you accelerates, the sooner you'll see a green signal, assuming fixed block lengths (determined by stopping distance from full speed).Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-19357934283285904092014-06-19T20:06:20.284-07:002014-06-19T20:06:20.284-07:0020 trains/h can be processed without long 4-track ...20 trains/h can be processed without long 4-track section. <br /><br />Example: Keio Line, 21 trains per hour (24 trains per hour during evening peak) west of Sasazuka without long continuous 4-track section or intergalactic station at end of line (There are only 3 stub-end tracks at Shinjuku). Unofficial stringline diagrams available at:<br />http://okiraku-goraku.com/2013/04/2013222-2.html#moreAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-48170581819925941842014-06-19T20:03:44.754-07:002014-06-19T20:03:44.754-07:00They still need small bridge between door to platf...They still need small bridge between door to platform. However, all the station are staffed and having fare gate. So, station staff prepare the small bridge for wheelchair customer.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-70145867474392225942014-06-19T18:04:14.502-07:002014-06-19T18:04:14.502-07:00So, 3.5 to 4 minute dwells. That's very impre...So, 3.5 to 4 minute dwells. That's very impressive. It does require level boarding: otherwise dwell times are too long and unpredictable. A single wheel chair could ruin the entire rush hour, through no fault of the wheel chair user.Clemhttps://www.blogger.com/profile/01374282217135682245noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-41530870747506122462014-06-19T17:54:06.564-07:002014-06-19T17:54:06.564-07:00One of unofficial stringline diagram of Keikyu Mai...One of unofficial stringline diagram of Keikyu Main Line:<br /><br />http://okiraku-goraku.com/2012/10/20121021.html#more<br />http://okiraku-goraku.com/2012/10/20121021-2.html#moreAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-78808272209791605382014-06-19T12:06:46.707-07:002014-06-19T12:06:46.707-07:00To elaborate on what Joey wrote... I believe Caltr...To elaborate on what Joey wrote... I believe Caltrains current signal system needs about 3-4 minute spacing for the following train to run at full speed. If you look at Caltrain schedule the penalty for each stop is about 2 mins. This includes deceleration, dwell and acceleration time. In order for both local and bullet trains to meet a common station (say Hillsdale), you'd need a 4 track segment of 2 stations before and 2 stations after hillsdale, or a total span of 5 stations. And we're assuming that the local station will stop at all the stations.<br /><br />Looking at the stations, the cost of making 4 tracks through the 5 stations in increasing cost is:<br />* Hayward Park - station is not elevated, ROW is big enough, CHEAP!<br />* Hillsdale - Little more expensive, but still easy<br />* Belmont - Moderately more difficult as it's grade seperated, and the station is not symmetrically between the two tracks.<br />* San Carlos - More difficult due to the existing historic station building. Platforms would have to be shifted North if you want to save cost (and PR headaches) related to the historic station building<br />* Redwood City - Multiple grade crossings surrounding the station would need to get cleaned up. Track would have to be elevated. Also, you'll need to do some eminent domain near the UP spur to Port of RWC. As you look out the right side side of NB train, you'll note that the 4 track section ends to make room for the freight spur. You probably don't need more than about 5 ft to make things fit, but Eminent Domain comes with PR head-aches, so it's worth highlighting it.<br />* San Mateo - ugh... Martinnoreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-23887427916741276502014-06-19T11:57:41.787-07:002014-06-19T11:57:41.787-07:00Island platforms exist only in the minds of us tra...Island platforms exist only in the minds of us transit advocates. What you'll see built is a mini NEC with four tracks and side platforms. The San Carlos station entrance will be moved to El Camino @ Cherry under the current plan, with parking stretching all the way south to Arroyo. It is conceivable that a new four-track station would be built a few hundred feet south of the current station, but you have to keep in mind the number of neurons dedicated to long-range strategic planning at Samtrans and Caltrain: zero.Clemhttps://www.blogger.com/profile/01374282217135682245noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-39383576405760195352014-06-19T09:39:16.518-07:002014-06-19T09:39:16.518-07:00Caelestor,
San Carlos will be rebuilt as an islan...Caelestor,<br /><br />San Carlos will be rebuilt as an island platform? Samtrans is selling a 99-year lease for devepment on the very same land where the shoo-fly tracks fused to build the current San Carlos station. How are you going to quad-track San Carlos? Eminent-domain the development, or shut down the entire Caltrain for a few years?<br /><br /><br />kiwi.jonathanhttps://www.blogger.com/profile/18215458981556481196noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-18798808897583440002014-06-19T07:42:14.391-07:002014-06-19T07:42:14.391-07:00I doubt it ... but he is quite the giver!
$100m t...I doubt it ... but he is quite the giver!<br /><br />$100m to NJ schools in 2010; $1b to Silicon Valley Foundation last year; $120m to local schools this year; etc.<br /><br />I could easily see where FB might kick in for a very nice Facebook station, however.Reality Checknoreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-69671968533060085242014-06-19T07:02:27.852-07:002014-06-19T07:02:27.852-07:00Cannot be 5min. In the midday, they runs 18 train/...Cannot be 5min. In the midday, they runs 18 train/h<br />Here is timetable of this station. (Weekday) <br /><br />http://norikae.keikyu.co.jp/transit/norikae/T5?uid=5202&dir=17&path=20140619223817693&USR=PC&dw=0&slCode=250-17&d=1&rsf=%8B%9E%8B%7D%92%DF%8C%A9<br /><br />See line map. This movie taken at KK29 (Keikyu Tsurumi) which serves local and express train.<br /><br />http://www.haneda-tokyo-access.com/en/transport/trainlinemap.html<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-71825093121703735062014-06-19T06:51:24.244-07:002014-06-19T06:51:24.244-07:007 min may be long for some rider who do not need e...7 min may be long for some rider who do not need express train. However, many rider will be happy if they can transfer to express or vice versa. Rider who is traveling from San Jose to Hayward Park, Burlingame, San Bruno...,they can use express to Hillsdale and then use local train in front of express.<br />7 min waiting is even better than current 5 min waiting in Lawrence or Bayshore, which you just need to wait.<br />Building long 4-track section will be financially justify if then run 20 or more train per hours.<br />BuildingAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-15985981563681823972014-06-18T23:39:25.719-07:002014-06-18T23:39:25.719-07:00Can you find the timetable for this Japanese overt...Can you find the timetable for this Japanese overtake? The video has multiple cuts and gives no clue as to how long the local waited. I bet it's longer than 5 minutes.Clemhttps://www.blogger.com/profile/01374282217135682245noreply@blogger.comtag:blogger.com,1999:blog-8419444332771213285.post-32921384909767623332014-06-18T23:33:14.110-07:002014-06-18T23:33:14.110-07:00Will the Zuck drop a few 100 million of his person...Will the Zuck drop a few 100 million of his personal fortune on Dumbarton rail?Clemhttps://www.blogger.com/profile/01374282217135682245noreply@blogger.com