For $125 per City staffer per year [volume discounts available] the City can access all the course offered by Planetizen.

The first chapter of the cited one, on Pedestrian streets planning, was created by one of the New York City staffers who helped create the insanely successful NYC pedestrian streetscape of today. That chapter is free for anyone who clicks this link: http://courses.planetizen.com/course/pedestrian-planning/1

What a great, inexpensive way for City staff to get the best in-practice learning from the world's cities!