The latest version of the Walkability Index Score Sheet can be found here. Urban design is best learned by simply getting out and walking around in a city, and the Walkability Index is provided in that spirit. As you use it, note any questions or improvements that might be made. Let us know how you are using the Walkability Index, and how it’s working for you.
This most recent update provides better guidance on dealing with short blocks and median streets, both of which had a tendency to get a lower score than was probably deserved under earlier versions.