New TRB Publication on Roundabout Practices
The Transportation Research Board’s National Cooperative Highway Research Program (NCHRP) recently released Synthesis 488 on Roundabout Practices. This informative publication summarizes roundabout policies, guidance, and practices within state departments of transportation as of 2015. The synthesis may be used as a reference for state agencies that are creating or updating their roundabout and intersection control policies.
NCHRP Synthesis 488: Roundabout Practices
2016 CPAM Annual Concrete Paving Workshop & Awards Banquet
The 2016 CPAM Concrete Paving Workshop held at the Harbor Side Convention Center within the DECC in Duluth, Minnesota, on Thursday and Friday, March 10-11, was a great success. Photos may be accessed via the top menu bar. (After clicking on “Photos,” a right menu bar titled “More photos” will appear with links for workshop and awards photos.) Speaker presentations are available in the eLibrary under Workshop Presentations.
For a list of this year’s Minnesota Concrete Paving Merit Awards, click here. Congratulations to Matt Zeller, CPAM executive director, for receiving the 2016 Arnie Laingen Award!
Many thanks to the 29 companies that sponsored the ever-popular President’s Reception on Thursday evening, March 10, with complimentary drinks and hors d’oeuvres! Please see the Calendar/Events page for a complete list.
Ohio US 30 Comparison Test Project –
Asphalt vs. Concrete
A collaborative effort between ODOT and the PCC and asphalt industries resulted in a $40 million experimental test project to determine which pavement style was superior in performance and more economical over equal 20-year design life specifications. Learn more about the overall cost comparison and outcome to-date by viewing a 2:20 minute YouTube video on the specifics.
In the News
Interstate 394 in Minneapolis is currently being rehabilitated using “Buried Treasure Preservation” to bring its structural integrity back to a condition that is close to new by eliminating worn areas of concrete and replacing them with new concrete patches. The process is expected to give the pavement an additional life of 20 to 30 years. Read more in Updated Concrete Surfaces Improve Aging Roads, June 2015, IGGA Concrete Impressions.
Strengthening Pavement Cracks and Joints, July 2015, IGGA.
MnDOT Releases 2016 Spec Book
MnDOT has approved and published the Standard Specifications for Construction, 2016 Edition – also known as the 2016 Spec Book.
You can find the 2016 Spec Book on MnDOT’s Spec Book website.
The 2016 Spec Book is effective for most projects let on or after
October 23, 2015.
The 2014 Spec Book is effective for most projects let on or after Dec. 2, 2013 through Oct. 22, 2015, and is also available online, as are the older 2005 and 2000 Spec Books.
Online orders for the 2016 Spec Book will be accepted after the Bookstore receives its first shipment, about mid-July.
ACPA WikiPave Resource Now Available
A free concrete pavement encyclopedic resource called WikiPave is now available through ACPA, featuring technical and general information about concrete pavements. Check out this amazing resource here.