Interesting slide show of the latest innovations. The one that doesn't really say "mass" transit to me is the personal rapid transit prototype.
5.23.2007
Mass Transit
Posted by Shin-pei at 9:54 AM
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7 comments:
Vehicle size does not always reflect capacity. Essentially, PRT divides the traditional large transit vehicle into small units, and sends the units everywhere instead of just along corridors. The capacity is still there, it's just evenly distributed.
PRT trips would be non-stop from origin to destination. At speed, probably 25-35mph, urban PRT trips would be quite fast due to the non-stop aspect.
Each vehicle would be able to be re-used by successive passengers, typically up to 6-8 times per hour.
Thus, a large fleet of 3 or 4 seat PRT vehicles could achieve aggregate ridership levels on par with trains and buses.
I think that there is a lot of potential with prt, but there its also a pretty complex system.
I studied abroad at the TUDelft where I was in an urban planning studio. Part of the project was to develop a new infrastructure for a particular area of the Netherlands. We eventually settled on a system very similar to the PRT, but not before admitting to some of its problems. For example, PRT has the potential to move great numbers of people, but it could also very easily become conjested if a large percentage of the PRTs want to travel along the same route; slow downs could occur at common junctions. I think they are a good solution, but PRT's usefulness will depend a lot on the existing infrastructure.
By the way... I've just recently found this blog, and am really enjoying the content. I've added you to my sidebar so that I can stay current!
i like this,haha
crazy bus!!
crazy bus!!
Michelle Linden --
Hey, I'm in Seattle too! I was going to write something about part of your comment, and then I remembered this paper from a couple years ago. Pages 7-9 includes a discussion of distribution of demand which bears on your observation about congestion to high-demand destinations.
Shoot, I forgot to add the hyperlink.
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