2005 Transportation Summit
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CNU Transportation Summit Wiki
Kansas City, Mo.
November 18 & 19, 2005
What is a Wiki?
"Wikis" provide the opportunity for anyone to comment on and edit the given material. Wikipedia is the best known wiki. It's an encyclopedia that is now several times larger than the Encyclopedia Brittanica. The CNU Transportation Summit Wiki allows viewers to access and edit notes on the lectures and presentations from the event.
Please use these pages to share notes and discuss topics from the CNU Transportation Summit.
Go to http://www.cnu.org/transportation2005.html to download presentations from the first day of the summit.
Open Space Sessions
Pedestrian Science
Light, Light Rail
If this is a TOD, why is there so little transit?
Freight
Finding a common ground for emergency response and healthy streets
Communicating Context and Streets Relationships to “Non-CNUers”
ITE Network Recommendations
Comments
Charles Carmalt
December 16, 2005
At the Kansas City workshop I had offered to lead a session on AASHTO. Unfortunately I left the marketplace briefly to check out of my room and missed my session! The issues I wanted to address were as follows: 1- Although AASHTO's "Green Book" provides substantial leeway to allow the use of streets appropriate for New Urbanism, it is remains filled with small editorial comments that imply that roads should always be designed to provide wider and straighter alignments for roads when possible. There is a need for the next edition of the "Green Book" to undertake a major editing of the book to make its text more supportive of context sensitive design and new urbanism approaches, especially on urban collectors and local streets. 2 - More critically, the AASHTO Roadside Design Guide is thoroughly unreformed. It hates objects in medians, trees along roadsides, etc. I obviously support the safety objectives of the Roadside Design Guide, especially on high speed arterial highways. But its approach is counter-productive when applied to urban and suburban roads and streets having posted speed limits less than 45 MPH. On these roads consistent design is needed, but it should be the designers obligation to include design vocabularly that establish an urban landscape and encourage approrpriate speed, even though that may result in an occaisional crash. AASHTO needs to recognize that reduced speeds and increased attentiveness of drivers will result in fewer crashes overall. 3- Given the need to make the above two changes in important AASHTO report guidelines, how can AASHTO be brought into the process of developing and implementing appropriate standards for roads in urban and suburban settings having posted speeds of less than 45 MPH, and how can procedures be established to support the implementation of design changes associated with reduced speed limits in urbanized areas.
Last edited by TeganDowling. Based on work by kfarm and Lee Crandell. Page last modified on October 27, 2006
