Walk Scores Travel Time API

Walk Score's Travel Time API is a great resource to visualise travel times on a map.

Using the API it is possible to display walking distance, public transit times, driving distance, and biking times on a Google Map. There are obviously unlimited possible uses of the API, from showing walking times from individual stores on a store locator to showing travel times from properties on a real-estate map.

I've had a brief look at the API documentation and it looks very easy to implement the API into a Google Map. For example, the map above involves about six lines of simple JavaScript code to display a walking time of about 15 minutes around a given location.

There are currently two API plans available. The Developer Trial is free for 1,000 calls per day. A Premium Plan is also available for developers who expect high-volume usage and is costed on a case by case basis.