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London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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#61
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#62
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David Cantrell wrote:
On Sat, Dec 20, 2008 at 12:12:31PM -0800, wrote: Does anybody here seriously think that a new bus will be allowed with open rear deck. With the old routemaster about 10 people used to die every year falling from the bus. Serves 'em right for trying to get on and off a moving vehicle. I know that when I had the opportunity to do that, I would have blamed no-one but myself if I screwed up. That's fine, for adults. I fell off a moving routemaster when I was a child, and landed between two bollards. If I'd landed on the bollard, I might not be here now. |
#63
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On Wed, 7 Jan 2009, David Cantrell wrote:
On Sat, Dec 20, 2008 at 07:19:22PM +0000, Tom Anderson wrote: While having fewer doors and more stairs. Which means it will have to wait for longer at each stop, and so ... The quicker boarding claim was demolished by the ASA in 2005: http://news.bbc.co.uk/1/hi/england/london/4531057.stm Firstly, please have the good grace not to trim posts so hard that i have to wade through google groups to find out what was actually written. Secondly, i hardly call it 'demolished' - for those interested in reading sources rather than halfwit BBC reporters' praeses: http://www.asa.org.uk/asa/adjudicati...ation_id=39734 While there are a few stops where lots of people get on and off - bendies are quite clearly faster here - most stops aren't used anything like that heavily so the number of doors makes no difference. A bendy has a shorter dwell time if 10 more more passengers are boarding, and longer if it's less than that. But that's compared to a routemaster, not a blunderbus. The reason a bendy can take longer is because of the kneeling suspension - the bus takes time to lower and raise itself at stops, so that there's level boarding. The routemaster didn't do that. If the new buses don't, then they may be able to retain that advantage. However, if they have an engine at the front and a rear-wheel drive, as we've been promised, then they'll have an axle, and won't be low-floor (no matter what the concept sketches say), which means they probably will have to kneel, in which case the advantage evaporates. tom -- resistance is fertile |
#64
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On Wed, 7 Jan 2009, Tom Anderson wrote:
On Wed, 7 Jan 2009, David Cantrell wrote: On Sat, Dec 20, 2008 at 07:19:22PM +0000, Tom Anderson wrote: While having fewer doors and more stairs. Which means it will have to wait for longer at each stop, and so ... The quicker boarding claim was demolished by the ASA in 2005: http://news.bbc.co.uk/1/hi/england/london/4531057.stm Firstly, please have the good grace not to trim posts so hard that i have to wade through google groups to find out what was actually written. On re-reading this, that comes across as far nastier than i had intended - my apologies. tom -- It's a surprising finding, but that's science all over: the results are often counterintuitive. And that's exactly why you do scientific research, to check your assumptions. Otherwise it wouldn't be called "science", it would be called "assuming", or "guessing", or "making it up as you go along". -- Ben Goldacre |
#65
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On Wed, Jan 07, 2009 at 12:04:55PM -0000, John Rowland wrote:
David Cantrell wrote: Serves 'em right for trying to get on and off a moving vehicle. I know that when I had the opportunity to do that, I would have blamed no-one but myself if I screwed up. That's fine, for adults. I fell off a moving routemaster when I was a child, and landed between two bollards. If I'd landed on the bollard, I might not be here now. That would be your parents' fault. -- David Cantrell | Nth greatest programmer in the world THIS IS THE LANGUAGE POLICE PUT DOWN YOUR THESAURUS STEP AWAY FROM THE CLICHE |
#66
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On Wed, Jan 07, 2009 at 06:45:44PM +0000, Tom Anderson wrote:
On Wed, 7 Jan 2009, David Cantrell wrote: The quicker boarding claim was demolished by the ASA in 2005: http://news.bbc.co.uk/1/hi/england/london/4531057.stm Firstly, please have the good grace not to trim posts so hard that i have to wade through google groups to find out what was actually written. That's what threading is for. If your chosen news client doesn't support it very well, I suggest using something else. A bendy has a shorter dwell time if 10 more more passengers are boarding, and longer if it's less than that. But that's compared to a routemaster, not a blunderbus. The reason a bendy can take longer is because of the kneeling suspension - the bus takes time to lower and raise itself at stops, so that there's level boarding. I wish they took longer to lower and raise themselves! The sudden vertical jerks can be quite un-nerving! Especially the ones that happen nowhere near bus stops. However, if they have an engine at the front and a rear-wheel drive, as we've been promised I wonder why they'd want rear wheel drive. I don't see why FWD would be any kind of disadvantage. then they'll have an axle, and won't be low-floor (no matter what the concept sketches say), which means they probably will have to kneel, in which case the advantage evaporates. Not necessarily. The engine could be an electrical generator, driving electric motors on the wheels. It works on trains, and I believe there are some concept road vehicles doing similar. -- David Cantrell | Nth greatest programmer in the world Never attribute to malice that which can be explained by stupidity -- Hanlon's Razor Stupidity maintained long enough is a form of malice -- Richard Bos's corollary |
#67
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David Cantrell wrote:
Not necessarily. The engine could be an electrical generator, driving electric motors on the wheels. It works on trains, and I believe there are some concept road vehicles doing similar. It's pretty much got to be series-hybrid operation, with the engine driving a generator driving motors. Or 'diesel-electric' as you might say. There are batteries, too. London is currently experimenting with both series and parallel hybrid designs from a variety of manufacturers, where the engine and motors are linked to the wheels via a gearbox and conventional mechanical transmission. It's not clear yet which one's best, but Boris is pre-empting it by the choice of layout. By the way, he's come out today and said that they won't have conductors but PCSOs on them. Total farce. http://www.guardian.co.uk/politics/2...emasters-boris Tom |
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