Separate names with a comma.
Discussion in 'iPhone' started by danpass, Jun 30, 2010.
I've found it to be fairly accurate and was curious.
State DOTs (or other Transportation Departments) usually have websites with local road information, developed by cameras and ground loops in the pavement. Google, simply accesses that information and imbeds it into their maps.
can you cite your source for that information?
Its general knowledge...but its true.
generally they pull if from state DOT. now the states get this information based on toll tags.
States have a few check points that scan people toll tags and they use than figure out how long it takes to get to the next point and compute the speed based off that.
Now they do not store the numbers or even link them back up to the owner. All the car about are like the last 5-7 digits for their sample group.
That is why some places have it and other do not because if there is no toll tag system around the area their is no way to pull a sample group.
and from me. and everyone else that uses google maps on their phone.
well isn't that something
I used Google Maps on my old BB as well.