Unfortunately, updating map databases tends to be VERY labour intensive, as any change can require very extensive QA checks to ensure the integrity of the whole database. It took the regular sat-nav databases for the UK about 2 years to include the newly built road on which I live - and Google Maps still hasn't got it after 6 years!
Same with speed cameras - driving on motorways, satnav will warn about 50mph speed cameras. I'm assuming that was down to roadworks and speed restrictions that have long since gone....
Biting the hand that feeds IT
