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I'd like to create a 30 min drive time polygon around 400 separate points I have plotted to google maps.

I have discovered but this seems to freak when you get near the sea (many of my points are). And also which works well, but I can't then extract the polygons in .KML form.

Anyone come across any tools able to help me?



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3 Answers 3

I was looking about for this tool for a bit. Quite bizarre its not readily available. As a budget conscious non coder my options were limited. Has anyone tried this guy

I may give it a go, will let you know how it goes.


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we prefer long answers here. please don't leave just a link only possible maybe answer. check it out see if it answers the original question then post an answer that details why and what it does to answer the question. – Brad Nesom Jun 12 at 15:26

I know this post was from a while ago, but we ran into the same problem so we went off and built it as a premium service for our Google Maps enterprise offering. Needless to say it is a paid solution, so I am not going into a marketing pitch on a technical forum.

However, this was one of the first posts that I found when I was actually looking fora solution even if I had to pay for it... I didn't want an ESRI server, so we setup a OSM server with road networks and use pgRouting on top and then packaged it up as a web service for those who are interested how we built it. I am happy to share more details if you prefer to build something similar rather than licensing it:

Happy coding

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check out this example here which uses arcgis service time geoprocessing service and google maps.

if your points locate in US, u can use CreateDriveTimePolygons from ESRI here. you need to do is that write Input Location, Drive Times and format as json then execute your process.

beside this you should check out similar ques.:

  1. Creating drive time polygons using open source tools, here
  2. Can you make a travel region polygon with with Google Maps API?, here

Example Input Location:


enter image description here

i hope it helps you...

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Works for Canada too. – Mapperz Aug 8 '12 at 13:34
My points are all Australian based. Very low knowledge of code - just want to take a tool like Cartoo and extract into KML so I can combined 400 data points onto one single map. – chris Aug 9 '12 at 1:45

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