Simple math... if a driver in a 45-MPH zone passes A at 5 pm and 1 minute later, passes point B 1 mile away, how fast is he travelling? And more importantly, is he speeding?
Well, this would be more relevant in metric, but we'll save that for another day. In UK they have cameras that track you as you travel. If you pass two points too quickly, then you're obviously speeding. A major flaw? You can outwit the system by simply changing lanes.
That seems like a major flaw.
introspection technology entertainment-books and magazines sift work diet/exercise video funny cars worth repeating Christianity/church ideas and creativity bad company transit and development advertising / branding / marketing email music unclutter random food entertainment-television Google by-week 750 Starbucks 120 family #blogaday cool coffee parenting L.A. architecture entertainment-movies environment leadership Christmas Apple Seattle autism atad entertainment photos art and design weather politics by-year geography identity rain social Amazon home improvement travel Disney by-month money snow charity dream Lego how to vacation awful conference crime simplify children AT&T LOST news sports education fashion clueless improvement links no-bars-blog 2013 NASA NBC GTD fail good company holiday nostalgia trust30 war 2014 empowerment journalism legal picky power powerless quoted Cuba Lori cord-cutting focus great day inspirational radio Federal Way McDonalds Rachel Tacoma medical videoblog Boeing Microsoft Wal*mart art buffy conspiracy culture laundry sellout web 2015 PLU customer service fool review robots and drones