This is the post that I wanted to write if I had only made the time. Nice debate on the use (or misuse) of Level of Service.
Levels of Service and Travel Projections: The Wrong Tools for Planning Our Streets? by Project for Public Spaces.
This makes me think of Jane Jacobs and the Death and Life of Great American Cities. There were so many notable quotes from that book that bear repeating in our engineering curriculum that it's one of of the primary motivations for my being involved in training. A great insight into that book was offered by Kirk Paulsen who attended the PSU trip to the Netherlands this past summer. His post is here.