Talk: Personal rapid transit
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WVU PRT should be seperate article? wikiveterans please advise Codeczero 16:29 Feb 21, 2003 (UTC)
- Hi, welcome! As it is, WVU PRT fits well in this article: it is on-topic, and only when an article gets very long we need to split it. - Patrick 20:26 Feb 21, 2003 (UTC)
good info in here but it reads like someones PRO PRT lobbying piece still.. Triptych 02:57, 9 Jan 2004 (UTC)
Not anymore. There are quite a lot of disadvantages listed, and I just put in the guideway choice issue and the dual mode versus single mode debate. Now, the problem is to get the article organized a bit more. Too many of the points mentioned (as advantages or disadvantages or as specs) apply only to one type of guideway but not to another or to a single mode system but not a dual mode system, and this is not made clear.
I wrote the original article, and I'm still one of the biggest contributors (I often fail to log in). I started off pretty ignorant, and very neutral on the topic. I have experience with biomedical software and safety engineering. So I read up on the topic. Unfortunately, most of the people who write books about this thing, and really understand it are enthusiasts (of course). Most of the people who debunk it are clearly doing the capitalization and overhead math wrong. Some of the older advocates say this is happening on purpose to persuade the politicians to buy the wrong transit stuff. Ray Van De Walker 2004-01-27 09:20Z
I am always amazed at the naivete of alas too many PRT enthusiasts (and here I am not refering to those who have edited this article, for they seem a level headed lot) and sympathisers . No, PRT systems are not singled out specifically for destruction, yes they will get destroyed mercilessly if they are not nimble. The transit market is all too often a "dog eat dog" world of rather fierce competition between competing kinds of systems, competing companies within the same systems and local financial interests striving for attention. PRT projects get caught in the crossfire most of the time, or brushed aside with a slight shove because of their fragility. Entrenched transit technologies in traditional transport establishments can react in a very brutal way to menacing innovations, and this has happened to much stronger and well prepared projects than what PRT systems are offering. One example is the air cushion aerotrain developped by Jean Bertin in France. It went as far as full scale prototypes and a long test track several kilometers long. The development of the TGV, the Train Grande Vitesse (ultra high speed train) by France's national railways, the SNCF was an effort meant to crush the aerotrain, which it considered as a dangerous competitor. Hundeds of millions of Euros were spent in R and D by the SNCF, dwarfing the aerotrain research budget. Even greater sums were spent on the new dedicated infrastructure for the TGV. The SNCF was successful. Companies which sell trams, buses or or commuter wagons cannot be expected to lie down and say . "OK you have the right stuff and we have the wrong stuff." They can be expected to try every trick in the book to wipe any PRT proposal off the map, as they wipe out other competitors in the traditional bus and tram domain. The only potential allies are car companies, which stand to gain as much by making myriads of PRT vehicles as they are making cars, if personal vehicles are allowed (in single mode as well as in dual modes personal vehicles are possible, though they are rarely discussed) but there is no reason for them to leave the status quo. One should note though that Ford research labs proposed a new PRT system called PRISM, in December 2003.
Braking The braking gravity forces here seem crazy. Is there any documentation to prove we will survive braking from 115 km/h in 0.1 seconds? AndrewR66 2004-10-06
