Rather too many people who come on this forum rely so totally on satnav that restriction signs do get missed; how could the satnav be wrong ? Well it is wrong a great deal ! Poeple say, "I updated it only 2 days ago". Trouble is the underlying data the satnav relies on can be way out of date. In recent times, a new road built here in Crewe only came onto my satnav four years after it opened !! What hope is there that time-based entry restrictions will be on the data, or buslanes ? Not much, I say. It is of paramount importance when driving in big and some not-so-big cities that one's eye is alert to signs barring entry, no matter what the satnav may be telling one to do.