Ok, this is a pretty old question, but I think I'm in charge of someone else.
I also need to get information about whether I was at the interstate or not, and Geocoder did not help. So I came across Google geocode apithat which gives a lot of information.
eg
LatLng: 39.249121, -122.182131
And Url will be:
https://maps.googleapis.com/maps/api/geocode/json?latlng=39.249121,-122.182131&sensor=false
Sensoris true if you are sending from a mobile and false if using a browser.
Now you can open the link and check the detailed answer for yourself, in those objects jsonyou receive type = route, and you will receive as the road in which you are. I-5short_name
source
share