tag:blogger.com,1999:blog-293100068373105830.post3170915799257532901..comments2024-03-27T09:13:58.922-07:00Comments on The Amateur Planner: The ignominious D Street lightArihttp://www.blogger.com/profile/06058285362842737187noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-293100068373105830.post-43230319585148383302015-08-01T10:52:27.430-07:002015-08-01T10:52:27.430-07:00My understanding was the hold-up was community opp...My understanding was the hold-up was community opposition: People still want a rail line, and BRT was (supposedly) a low-capital 'interim' solution, so there is much opposition to large capital costs. Buses and tunnels mix poorly, as the buses must be electrified for ventilation reasons. Consequently, there are only three (3) bus tunnels anywhere in the US: NY XBL in the Lincoln Tunnel, the SODO busway in Seattle, and the Silver Line in Boston.Matt439millerhttps://www.blogger.com/profile/07570568142677019300noreply@blogger.comtag:blogger.com,1999:blog-293100068373105830.post-90111404919889327692013-12-12T12:41:56.548-08:002013-12-12T12:41:56.548-08:00Yes, it would certainly help on the surface light ...Yes, it would certainly help on the surface light rail lines. What I really like about the D Street example is that you have a very small fleet to equip (there are only a few dual-mode trackless units) and only one signal which would save a lot of time. If it were successful in reducing trip times (and it would be), then it would be a good proof-of-concept for the surface rail lines.Arihttps://www.blogger.com/profile/06058285362842737187noreply@blogger.comtag:blogger.com,1999:blog-293100068373105830.post-77623788555562026342013-12-11T09:31:32.541-08:002013-12-11T09:31:32.541-08:00Great post! This is something I think about all th...Great post! This is something I think about all the time -- how we can have such an incredibly simple piece of tech can make some [relatively] incredible improvements. The MBTA seemingly refuses to consider signal priority anywhere, however -- it is completely mind boggling. But here you actually worked out the math for the Silver Line and you can show the benefits.<br /><br />I'm hoping maybe you'd add up all the red lights on specific Green Line branches next? B needs it desperately, then the E, and finally the C. With the C, the city of Brookline even INSTALLED THE HARDWARE for signal priority. They told the MBTA it would improve service and the MBTA essentially said, "Pft, prove it! And then MAYBE we'll do it."A.P. Blakehttps://www.blogger.com/profile/04677671592547184156noreply@blogger.com