On Fri, 11 May 2007 23:32:53 +0100 The Natural Philosopher wrote :
No it doesn't. Cars per hour is similar, but since they are all going
faster, they all take less time to get there. Overall you get more
journey miles per hour at higher speeds.

If you follow the 2 second rule then a lane of traffic can pass 1800
vehicles per hour regardless of speed.

--
Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk