Question

I am utilizing the Google Maps API to obtain driving directions to several locations on one page. There are JQuery selectors on the page where a user can select a different locations and view the driving directions for that location.

I am loading all of the requests on page load and I seem to be hitting a limit when I load more than 10 where it reports the remaining addresses cannot be found. I’m assuming there’s a limit of 10 per second or something like that.

Does anybody have any more information about this, and ways to get around it besides subscribing to the premier service?

Thanks!

Answer 1

The Geocoding service is subject to daily limits per ip address (client) and a maximum request rate, which is probably what’s causing the issue for you.

Here is a discussion from this morning on the rates of various services:
Geocoding Services – limits – Google vs Yahoo vs others?

But you will probably find this article/sample from Google more helpful (See the timing Geocoding Requests section):
http://code.google.com/apis/maps/articles/phpsqlgeocode.html

Basically the concept is to add a delay between your requests and to increase that delay each time you receive an error message.