Browsing All posts tagged under »design«

When design manuals trump engineering judgment

October 2, 2012

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I recently drove past this example of conforming to road design manuals. Who needs common sense and engineering judgment when these manuals have all the answers?! Advertisements

bad streets for bicycling

August 20, 2012

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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

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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 […]

wait…you mean we DON’T have to widen the road?

February 7, 2012

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The 2-lane road in the photo below is a U.S. Highway. According to the state DOT, it carried 16,000 vehicles per day in 2010. The communities along the corridor wanted a main street through their towns, not the high-speed/grade-separated arterial that was on the shelf. They happened to have well-connected advocates and won the battle […]

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 […]

Rules of the road: roundabout vs. traffic signal

October 30, 2011

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So many road bureaucrats claim they oppose roundabouts because they’ll confuse people. Traffic signals (also known as stop lights, temper-inducing stop-and-go features, or death traps) are just easier for drivers to understand. So let’s look at the rules of the road that a driver processes when approaching the two intersection types. [special thanks to Ken Sides […]