Browsing All Posts published on »January, 2012«

intended use of the AASHTO green book

January 26, 2012

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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 […]

sustainable street network principles

January 26, 2012

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Download the ‘Sustainable Street Network Principles‘, a new document from CNU’s (@NewUrbanism) Project for Transportation Reform. Many engineers won’t be able to sit still after the preamble. (If they make it past the preamble.) Here’s a taste: We assert that current transportation engineering addresses only limited individual components of the region’s street network. This results […]