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DDI Under Design in Boone County Kentucky
Details    Edit
Updated: Oct 16, 2013
 Freeway Interchanges  Diverging Diamond Interchanges  Conceptual Planning
Abstract: The I-71/75 & KY 338 Richwood Road Interchange Project is part of a comprehensive plan by the Kentucky Transportation Cabinet (KYTC) and Boone County to improve transportation service in the rapidly growing I-71/I-75 corridor. The area surrounding the KY 338 (Richwood Road) interchange has experienced rapid development, leading to increased traffic on the local road network. Add to this the continued growth in traffic on I-75, one of the nation’s largest commercial routes, and you get traffic congestion and high accident rates. With this area expected to continue to grow over the next 20 years, so will the congestion and safety issues.
Region: USA - Southeast Videos: No
Road: I-71KY 338 Pics: No
City: Union ,KY ,US Docs: Yes
Lat/Lon: 38.917601021 ,-84.6289375 Links: Yes
1 people have recorded their role in this project.
Credits

Todd White, PE   
Role: Lead Roadway Engineer

Quadrant Intersection, Flexibility for the Future
Details    Edit
Updated: Jul 26, 2011
 Arterial Intersections  Quadrants  w/Interior Development  Conceptual Planning
Abstract: This site does not force left turns to occur on quadrant roadways, but the design is flexible, giving them a "get out of jail free" card when congestion is so bad that quadrants could improve things. Also improves general connectivity of this busy activity center.
Region: USA - Mountain West Videos: No
Road: UT-68Crossroads Blvd Pics: No
City: Saratoga Springs ,UT ,US Docs: No
Lat/Lon: 40.387584095 ,-111.9163460 Links: No
2 people have recorded their role in this project.
Credits

Jonathan Dough   
Role: Added or clarified information.

Likely First DDI Considered in the US
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Conceptual Planning
Abstract: New interchanges were considered at this location in 2005, with the widening of both Hanover Road and MD 295. The DDI was not selected as the chosen alternative because state officials did not want the first DDI in Maryland to go in a location where there would be a lot of unfamiliar drivers. This new interchange is planned to be the entrance to the rental car facility for BWI Airport.
Region: USA - Southeast Videos: No
Road: Maryland 295Hanover Road Pics: No
City: Hanover ,MD ,US Docs: No
Lat/Lon: 39.188228501 ,-76.7150515 Links: No
1 people have recorded their role in this project.
Credits


Merrifield, VA - Potential Quadrant
Details    Edit
Updated: Apr 05, 2011
 Arterial Intersections  Quadrants  w/Interior Development  Conceptual Planning
Abstract: Not currently being used to eliminate lefts at main intersection, but easily could be. Good example of keeping options open.
Region: USA - Southeast Videos: No
Road: Lee Hwy Pics: No
City: Falls Church ,VA ,US Docs: No
Lat/Lon: 38.873799644 ,-77.2261186 Links: No
0 people have recorded their role in this project.
Credits


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