tag:blogger.com,1999:blog-8689506078297112665.post5116713780346700554..comments2023-10-08T08:33:55.549-04:00Comments on Unsuck DC Metro: Rail Is the Best, Right?Unsuck DC Metrohttp://www.blogger.com/profile/02752056661298716293noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-8689506078297112665.post-15483615963739638862009-09-28T09:34:07.793-04:002009-09-28T09:34:07.793-04:00The later Metro cars were designed to generate ene...The later Metro cars were designed to generate energy into the power rail on breaking. These were called the chopper cars as there is an electronic device that can perform this function. So, if there is another consist moving out up ahead or behind a breaking consist at the same time, it conserves power. The DC system never put in the flywheels next to the tracks so that could store the power even if there was no other movement at that instant.<br />LightningLightningbolthttp://www.his.comnoreply@blogger.comtag:blogger.com,1999:blog-8689506078297112665.post-3939992043528329622009-06-16T20:38:54.584-04:002009-06-16T20:38:54.584-04:00Here's the original study: http://www.iop.org/...Here's the original study: http://www.iop.org/EJ/article/1748-9326/4/2/024008/erl9_2_024008.pdf<br /><br />Best I can make of it, rail only comes out dirtier in a few pollutant categories that result from the use of coal power. In the category that counts for global warming, CO2, rail comes out the clear winner.Omarhttps://www.blogger.com/profile/07868665882657626871noreply@blogger.comtag:blogger.com,1999:blog-8689506078297112665.post-21761616944645100512009-06-16T20:24:07.607-04:002009-06-16T20:24:07.607-04:00This comment has been removed by the author.Omarhttps://www.blogger.com/profile/07868665882657626871noreply@blogger.com