In which I rant a little about the glaring lack of common sense in today's navigation applications, end up rather late and stressed for a wedding I should have been half an hour early for... and I explain what's happened to the sat-nav group test that we promised six months ago...

"With all the other calculations that sat-nav software now performs, including applying 'fudge factors' to specific road classes and taking into account major reported traffic 'incidents', should there not be an extra, perhaps even time-specific, factor that the software would apply when considering routes heading in the vicinity and general direction of big towns and cities? Calling it another 'fudge factor' would sound a bit amateurish. What about 'Urban Congestion Allowance' (UCA)?"

Read on