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Pele View Drop Down
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Joined: 27 May 2008
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pele Quote  Post ReplyReply Direct Link To This Post Posted: 15 Feb 2011 at 8:55am
quote:
Originally posted by Spectrepilot

quote:
Originally posted by Pele

Modern diesel engines are equipped with Diesel Particulate Filters to reduce or eliminate entirely, the emission of soot into the atmosphere:
http://en.wikipedia.org/wiki/Diesel_particulate_filter

It's similar to how modern gasoline engines are equipped with a catalytic converter. (I think they were required to be standard equipment by the mid 1980's.)

Your data is for a Diesel engine without the Diesel particulate filter.




I know exactly what they are and DC metro buses do NOT have them. For a system that is already broke, $6,000 per vehicle was too much to fund.



From the Metro Website:

quote:
What is Metro doing to help regional air quality?

Our entire 1,500 Metrobus fleet is eco-friendly: 439 buses run on Compressed Natural Gas (CNG), 117 buses run on advanced technology diesel, and 50 buses are diesel/electric hybrid. All remaining buses in the fleet have completed the Clean Fleet project, which includes the use of ultra low sulfur diesel fuel in conjunction with exhaust treatment devices to lower emissions.


Having seen the engine compartments of most of the busses, I can tell you that you're WRONG.


Furthermore, we're talking about the HOV lanes from Dumfries on up to the Pentagon. Most of that is outside of WMATA's jurisdiction... I fail to see what Metro busses have to do with anything. The PRTC busses that run up and down the HOV lanes are equal to, if not NEWER and BETTER equipped than the Metro busses.

One bus is better than thirty cars.

However, Cars carrying three or four people are better than cars carrying one.

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Times to beat:
Horner Rd to/from Pentagon: 12 mins Without Slugs - 17 mins With slugs
Dale City exit to/from 3rd St Tunnel, D.C. 18 mins (No slugs - Holiday)
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HOVME View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HOVME Quote  Post ReplyReply Direct Link To This Post Posted: 21 Feb 2011 at 2:32pm
HB 1432 was reported out Friday by the Senate Committee on Trnsportation. Just another couple steps left.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote HOVME Quote  Post ReplyReply Direct Link To This Post Posted: 22 Feb 2011 at 7:30pm
The Virginia General Assembly today passed the extension allowing single occupancy hybrids to continue to use the HOV lanes through June 30, 2012.

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cindyjohn View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cindyjohn Quote  Post ReplyReply Direct Link To This Post Posted: 25 Dec 2012 at 8:53pm
it is a good topic
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