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How can I find the closest intersection of the street I have coordinates of?

For instance, say I have street A running from south to north that is crossed by street X on the north and by street Y on the south.

Does the Google Maps API allow for finding coordinates of the nearest crossroad (either X or Y) of street A? I couldn't find it mentioned anywhere.

PS: The only solution I am aware of is to guess the lowest number and the highest number of building on the street A and to draw polyline between them. I am not sure about this though.

How can I find the closest intersection of the street I have coordinates of?

For instance, say I have street A running from south to north that is crossed by street X on the north and by street Y on the south.

Does the Google Maps API allow for finding coordinates of the nearest crossroad (either X or Y) of street A? I couldn't find it mentioned anywhere.

PS: The only solution I am aware of is to guess the lowest number and the highest number of building on the street A and to draw polyline between them. I am not sure about this though.

• javascript
• api
• google-maps
• geocoding

Share Improve this question Follow edited Feb 27, 2009 at 23:00 GEOCHET 21.3k1515 gold badges7777 silver badges9999 bronze badges asked Feb 16, 2009 at 21:29 dusoftdusoft 11.5k55 gold badges4040 silver badges4444 bronze badges 4

• I wonder if you could hack GDirections to do this? – dotjoe Commented Feb 16, 2009 at 21:59
• I am not sure, I ill have to dive in GDirections API to find out, but I have searched for the answer (both google and google maps support groups) and nobody really seem to know, if this is possible. – dusoft Commented Feb 17, 2009 at 11:42
• I was thinking you could get the walking directions to two points so that it would force you to turn on the first crossroad. But, i doubt this would be reliable. Is there a google maps search operator like "nearest intersection" or something? – dotjoe Commented Feb 17, 2009 at 16:27
• no, there is not. it would help if there was a function to provide an array of coordinates of the nearest intersections. – dusoft Commented Feb 19, 2009 at 15:56

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2 Answers 2

Sorted by: Reset to default 1

[see ments above]

unfortunately, no. even with gdirections, there is no way to locate the beginning and end of the street (coordinates). I have solved it by using the hack proposed above: looping over building numbers from 1 to XXX.

if accuracy is 6 for a while (8 = building number, 7=intersection, 6 = approximate address only) that means no new numbers exist. so i just take first point (lat/long), middle one and the last one (all with accuracy 8) and create path between them. this however sometimes only provides only a part of the street as other parts are either without any buildings or google does not have further data :(

You might consider using the TIGER data from the USGS. You can get that information from there, but it's not as easy to play with as the Google data.

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