An excellent BBC Click Online show which puts a sat-nav equiped car up against a London Taxi Driver to navigate around London. As you would expect the Cabbie wins, but it’s an excellent explanation of how satnav works warts and all.
At the end of the day like many other applications of Geospatial technology, it the data that makes all the difference.
Although this show is a lot better than many others I have seen, comparing a satnav to local knowledge is always unfair, local knowledge will always win, a better comparison is between satnav and a road atlas, or even asking people directions.
My Advice re choosing a GPS, never waste money on a factory fitted system, they are too expensive and are often a year or two behind the capabilities of modern Tom-Tom or Garmin system, however I just love the Ozzy Osbourne instructions driving instructions !
Written and submitted from home, using my home 802.11 network.