And now an update
In 2013 the Access Board announced it would be developing Accessibility Guidelines for Pedestrian Facilities in the Public Right-of-Way; Shared Use Paths.
Comments have been submitted, but integrating them is delaying the final guidelines for Pedestrian Facilities in the Public Right-of-Way.
In the meantime, the PROWAG 2011 is no longer available on ADA.gov or Access Board websites. I’m happy to forward my copy to anyone who e-mails michele@michele-able.com.