Computer driver, human navigator...
I once asked Google Maps to plot a route from Birmingham to Truro... which it did fine, except for including a return trip to Merthyr Tydfil before finding its way back to the M5. 'Never ascribe to malice what could be attributed to incompetence', so I won't suggest that the operators of the Severn Bridge and the Welsh Development Agency hold advertising accounts with the Chocolate Factory.
(Sorry to any readers unfamiliar with the South West of the UK mainland... it's the equivalent of Q>T>B>T>P when you wanted Q>P on your keyboard)