Driving yesterday, I was wondering how something like Google Maps calculates my estimated arrival time when I am on the road? I was mostly wondering when there is no adverse traffic.
Does it assume I'm driving the speed limit from my current location to my destination?
Does it assume I'm driving the same speed I'm currently traveling or the average speed of other vehicles with Google Maps?
SWAG
They use the speed limit when they are calculating the arrival time. In larger cities it also takes into consideration the traffic. It's only an estimate, pretty sure they aren't guaranteeing when you'll arrive to your destination.
canspo wrote:
Driving yesterday, I was wondering how something like Google Maps calculates my estimated arrival time when I am on the road? I was mostly wondering when there is no adverse traffic.
Does it assume I'm driving the speed limit from my current location to my destination?
Does it assume I'm driving the same speed I'm currently traveling or the average speed of other vehicles with Google Maps?
One thing all estimated arrival times seem to discount is time spent at red lights. The estimates are fairly accurate when on expressways, but are always early when on local roads with signals.
A 14 yearold kid with glasses held together with adhesive tape invented an app for doing that.
A lot oft data goes into this, this is a good pointer:
http://en.m.wikipedia.org/wiki/INRIX
It can never be accurate, an accident or a slow truck is not predictable. But certainly accurate enough in most circumstances.
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