Google traffic conditions are updated in real time because Google analyzes the GPS data of everybody who's currently using Google Maps while they're driving. Google analyzes GPS data and vets it against the speed you should be traveling at, the speed your were traveling at, and the speed you're currently travelling at.
But updates to Google Maps aerials and street views are "manual", and sometimes more than a few years out of date.
I live on a pretty main thoroughfare in Saanich, and the street view of my house shows my mothers car in the driveway ... and she passed away five years ago.
Google also shows my house in the aerial photo as not having a shed in my backyard, and yet I build a shed four years ago.
Google is WAAAAAAYYYYY out of date on all but the very largest cities in North America.
(but it's rather draconian access to, and analysis of your personal GPS data ensures "real-time" traffic information!!)