tag:blogger.com,1999:blog-8577503133879888623.post199695616919788947..comments2024-01-08T08:31:31.471-05:00Comments on Boston to a T: BTAT Editorial: Over Reliance on Computers is a 21st Century Problem.Anonymoushttp://www.blogger.com/profile/11245986428749246063noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-8577503133879888623.post-6410256113260815402014-09-23T03:14:47.453-04:002014-09-23T03:14:47.453-04:00You share the nice information about thin clients ...You share the nice information about thin clients services.<br /><br /><a href="https://www.igel.com/us" rel="nofollow">Windows Thin Client</a> & <a href="https://www.igel.com/us/products/igel-zero-clients.html" rel="nofollow">Zero Clients</a>Anonymoushttps://www.blogger.com/profile/06233699974657004533noreply@blogger.comtag:blogger.com,1999:blog-8577503133879888623.post-40761855757609679052013-11-22T11:42:36.498-05:002013-11-22T11:42:36.498-05:00This editorial is a disgusting piece of neo-Luddit...This editorial is a disgusting piece of neo-Luddite nonsense. You should be ashamed, and should retract it.<br /><br />Unless you've invented a way for the human eye to see perfectly around corners and long distances, signalling systems will always be necessary for railroad trains. Inserting a human layer between the signalling and operations aspect of railroad safety is just asking for human error to intervene.<br /><br />You hinted at driver error causing crashes, but glibly dismiss it as a "training issue". It is not a training issue. It is a fundamental problem with human control. People make mistakes. There are numerous examples and that is one of the reasons why Congress mandated Positive Train Control.<br /><br />The automatically driven MUNI train was perfectly safe, because all those trains are automatically driven in the tunnel. The driver is a pacifier for neo-Luddites, and a sop to the Carmen's union. Republishing some alarmist nonsense from a woman who is completely clueless about how trains operate is below you.<br /><br />Incompetence in implementation of safety systems is something that can be corrected, and once fixed, is fixed forever. Training drivers to not lose focus, to not have health problems, to not accidentally miss a signal is a constant struggle against human nature.<br /><br />You are blaming a computerized system for a human error, do you not see the irony in that?<br /><br />The Red, Orange and Blue lines all use a form of automatic train protection (Blue being an older system of mechanical trips). They are absolutely dependent on the correct functioning of their computerized signal systems. There is no alternative. If you want to abandon computers, then you can forget about upgrades to capacity, and can instead expect immediate downgrades and slow orders.<br />Matthewhttps://www.blogger.com/profile/02027332620204904993noreply@blogger.comtag:blogger.com,1999:blog-8577503133879888623.post-86594420368583626002013-11-21T18:51:38.796-05:002013-11-21T18:51:38.796-05:00I'm actually quite disappointed at how myopic ...I'm actually quite disappointed at how myopic this article is, considering the very same structural financing issues threaten to undermine operations under human control here.<br /><br />The 'accident' in SF could have been prevented if the driver had put his/her train out of automatic the moment s/he stepped out of the cab to deal with the door issue. THAT is the problem. The train would've merrily taken the passengers to the next station without colliding into any trains in front of it.<br /><br />In DC's WMATA, the accident was due to structural failures in track circuits failing to detect the train. The train stopped correctly in its fail state when it loses contact with central speed authority. The only failure was the original programmer's assumption that track circuits would not individually fail and continuously track trains, stopping all trains on the system upon loss of detection of a train.<br /><br />Beijing's causes haven't been fully explained, but a confluence of issues, including incorrect manual operation and arguably China's over-aggressive build-out have been to blame. The system was using a version of signalling based on ECTS, the European train signalling and control system that is nearing ISO acceptance.<br /><br />Japan has operated for nearly 50 years without incident using their train signalling and control system. The most recent high-speed crash in Spain happened BECAUSE of a lack of train control to properly calculate and apply a breaking curve for that section of track, overriding a driver who failed through whatever excuse he had to react to the speed restriction.<br /><br />You can't look at a bunch of incidents where trains operated on control systems and casually deride these operators as being over-reliant on life-saving computer control technologies. I'm incredibly disappointed that you didn't bother to take a step back and see that many of the failures are infrastructure-investment related.<br /><br />You're also confusing two different types of problems and control technologies. 'Automation' is not the same as 'control'. WMATA's and MUNIs trains can be set to automated, but there is no provision in the CTCS system on the Chinese high speed rail for automation.<br /><br />If you want to argue about automation, London's Docklands Light Railway uses SelTrac's CBTC, which is an automated system, to fully drive the trains without a human. Staff on those trains only take tickets, in place in case of the need for manual operation. All of Vancouver's SkyTrain operates flawlessly with SelTrac's CBTC. In my home town of New York, the CBTC installation on the L has been beleaguered by issues of tunnel infrastructure. Their upcoming install on the 7 train should be swift and problem-free since the East River tunnel has been extensively renovated since Hurricane Sandy and much of it is above ground.<br /><br />That's just a small selection of many large, nuanced systems that operate flawlessly because of proper investment or continued investment.<br /><br />We don't live in the dark ages of technology where we had to lay thousands of miles of copper to set up a proper signaling system. We also can't afford to shun these technologies. Editorial or not, these agencies will continue to expand their lines with CBTC or some other level of automation and/or train control to efficiently and safely move passengers through their urban metros. It's not fair to the public or anyone who reads this to be misled into thinking that this reliance on these vetted safety technologies is as simple as teen obsession with texting or Facebook.Marchttps://www.blogger.com/profile/08482174790749237305noreply@blogger.com