There are two versions of the Park Road Standards available for your reference.
In 1967, Director George B. Hartzog, Jr., assembled a group of notable individuals to help provide the answers to these basic questions: What is a park road? When, where, how and why do we build a park road? And under what circumstances do we consider adoption of other means of transportation?
The 1968 Park Road Standards set out the basic philosophy of park roads and was a foundation to the current Park Road Standards.
In 1984, a Task Force updated and expanded the 1984 Park Road Standards and these standards are still currently in effect.