Browsing All posts tagged under »AASHTO«

a failure to meet federal standards

August 27, 2012


From the Federal Highway Administration… A livable community is one in which people have multiple, convenient transportation and housing options as well as destinations easily accessible to people traveling in and out of cars. They also give this quick history… Livability builds off existing resources, policies, and programs: Context Sensitive Solutions Scenario Planning Planning and […]

bad streets for bicycling

August 20, 2012


The photo contest hosted by @EllyBlue at Taking the Lane has wrapped. Should I be thrilled or embarrassed that I won? I’m not going to waste my time with introspection. I’m going to give my award reception speech. Ahem… Thank you, thank you. I would first like to thank the bicycling academy. I now graciously […]

West Palm Walkability

June 3, 2012


The streets of West Palm Beach, FL took a beating recently. Physically, by hundreds of urbanists walking around during CNU20 and verbally, by many of the same urbanists reacting to what they encountered. The conversation is still going strong. The picture below is not unique to West Palm Beach. Despite the high volume of foot […]

flexible design is still not mainstream

April 28, 2012


Thanks in part to FHWA releasing this document, roadway design flexibility has become a popular catch phrase in professional transportation circles. The basic idea is that engineers are smart people who should use good judgment and common sense when designing streets and highways. At the philosophical level, the message has successfully spread. At the practical level, not so […]

deadly duo: traffic prediction + LOS metrics

February 7, 2012


Gary Toth (@eltotho) crams loads of user-friendly education about transportation planning into this article from PPS. He kicks off with a description of the deadly duo: travel projection models and level of service performance metrics. And for the fellow geeks who can’t get enough of this stuff, here’s a bonus video: Toth interviewed by Streetsblog […]

intended use of the AASHTO green book

January 26, 2012


Confusion still exists in the design community about the role of AASHTO’s Green Book. When you hear someone suggest that it’s law, refer them to A Guide for Achieving Flexibility in Highway Design…written by…[drum roll]…AASHTO. The AASHTO Green Book is not intended, and never was intended, to be used solely as a standard upon which […]