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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

Temporary Thru Turn for SPUI construction
Details    Edit
Updated: Nov 01, 2012
 Freeway Interchanges  Noteworthy Single Point Urban Interchange (SPUI)  TTI - Median U-Turn (Michigan U)  Existing
Abstract: Formerly, an at-grade intersection. The Thru-Turn strategy was used here to reroute lefts, making it cheaper to build the interchange, and with less disruption to traffic. Had good YouTube video, since removed.
Region: USA - Mountain West Videos: No
Road: UT-1547800 S Pics: No
City: West Jordan ,UT ,US Docs: No
Lat/Lon: 40.609915902 ,-111.9765018 Links: No
1 people have recorded their role in this project.
Credits


Flow metered roundabout
Details    Edit
Updated: Oct 03, 2011
 Freeway Interchanges  Roundabout Interchanges  Bowtie Interchanges  Existing
Region: Oceania Videos: No
Road: Hendry AveState Highway 20 Pics: No
City: Auckland ,NZ Docs: No
Lat/Lon: -36.921920552 ,174.7669869 Links: No
2 people have recorded their role in this project.
Credits

Daniel Dryland   
Role: Added or clarified information.
An Ho   
Role: Added or clarified information.

3rd Diverging Diamond in USA
Details    Edit
Updated: Aug 25, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: 3rd Diverging Diamond in USA. Opened Fall, 2010.
Region: USA - Mountain West Videos: Yes
Road: UT-145I-15 Pics: Yes
City: American Fork ,UT ,US Docs: Yes
Lat/Lon: 40.377024813 ,-111.8184674 Links: No
2 people have recorded their role in this project.
Credits


1st DDI opened to traffic in the US
Details    Edit
Updated: Aug 24, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: 1st DDI opened to traffic in the US
Region: USA - South-Central Videos: Yes
Road: I-44 Pics: Yes
City: Springfield ,MO ,US Docs: No
Lat/Lon: 37.250405720 ,-93.3107403 Links: No
2 people have recorded their role in this project.
Credits


Georgia's First Diverging Diamond Interchange
Details    Edit
Updated: Aug 24, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: This diverging diamond interchange, the first in Georgia, serves a diverse and vibrant commercial and residential area. The project is intended to reduce peak hour delays along the Ashford Dunwoody arterial by separating the left and right turning traffic flows at the interchange and eliminating the left turn phases at the signals. Construction began in September of 2011 and is projected to be complete by September of 2012. The "crossover" of the roadway will be in operation in the spring of 2012
Region: USA - Southeast Videos: No
Road: I-285Ashford Dunwoody Road Pics: Yes
City: Atlanta ,GA ,US Docs: No
Lat/Lon: 33.918058959 ,-84.3382643 Links: Yes
4 people have recorded their role in this project.
Credits

An Ho   
Role: Added or clarified information.
Markus Epple   
Role: Added or clarified information.

World's 1st (and only) Echelon Interchange
Details    Edit
Updated: Jul 21, 2011
 Freeway Interchanges  Eschelon Arterial Interchanges  Existing
Abstract: Bridge structure, but subjects all approaches to a signal (no "freeway" movements). Functions similar to Town Center Intersection (intersecting couplets), but does so vertically rather than laterally. Good choice when seeking to avoid freeway precedent, and both streets have similarly high volumes. Won an AASHTO award for innovative design somewhere around 2002.
Region: USA - Southeast Videos: No
Road: NE 203rd St Pics: No
City: Aventura ,FL ,US Docs: No
Lat/Lon: 25.963522327 ,-80.1468608 Links: No
1 people have recorded their role in this project.
Credits


2 of 3 Diverging Diamonds in France
Details    Edit
Updated: Jul 14, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Region: Europe Videos: No
Road: N486 Pics: No
City: Champigny-sur-Marne ,FR Docs: No
Lat/Lon: 48.830327779 ,2.4930974 Links: No
1 people have recorded their role in this project.
Credits


Quad in Ontario w/bridge
Details    Edit
Updated: May 30, 2011
 Freeway Interchanges  Quadrant Interchanges  Jughandle  Existing
Abstract: Single quadrant used in combination with overpass.
Region: USA - Northeast Videos: No
Road: Regional Rd 17 Pics: No
City: Mississauga ,ON ,CA Docs: No
Lat/Lon: 43.594661460 ,-79.6007669 Links: No
1 people have recorded their role in this project.
Credits


Likely First DDI in NY State
Details    Edit
Updated: May 22, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Abstract: Diverging Diamond Interchanges
Region: USA - Northeast Videos: No
Road: I-590Winton Road Pics: No
City: Rochester ,NY ,US Docs: No
Lat/Lon: 43.107509746 ,-77.5755972 Links: No
2 people have recorded their role in this project.
Credits

An Ho   
Role: Added or clarified information.

Diverging Diamond in the Salt Lake City area
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Region: USA - Mountain West Videos: No
Road: 2100 S FwyBangerter Highway Pics: No
City: Salt Lake City ,UT ,US Docs: No
Lat/Lon: 40.725850137 ,-111.9859340 Links: No
3 people have recorded their role in this project.
Credits

Markus Epple   
Role: Added or clarified information.

DDI planned in Wilmington, NC area
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Planned
Region: USA - Southeast Videos: No
Road: I-140NC 133 Pics: No
City: Castle Hayne ,NC ,US Docs: No
Lat/Lon: 34.316580024 ,-77.9202025 Links: No
2 people have recorded their role in this project.
Credits

An Ho   
Role: Added or clarified information.

DDI on I-95
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Region: USA - Southeast Videos: No
Road: I-95US 301 / Fayetteville Road Pics: No
City: Lumberton ,NC ,US Docs: No
Lat/Lon: 34.670289547 ,-79.0056985 Links: No
3 people have recorded their role in this project.
Credits

Markus Epple   
Role: Added or clarified information.
Jonathan Dough   
Role: Added or clarified information.

I-40 & Union Cross Rd DDI
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Region: USA - Southeast Videos: No
Road: I-40Union Cross Road Pics: No
City: Winston-Salem ,NC ,US Docs: No
Lat/Lon: 36.075090731 ,-80.1092946 Links: No
2 people have recorded their role in this project.
Credits

Jonathan Dough   
Role: Added or clarified information.

Ashville Airport Rd DDI
Details    Edit
Updated: May 18, 2011
 Freeway Interchanges  Diverging Diamond Interchanges  Existing
Region: USA - Southeast Videos: No
Road: I-26NC 280 Pics: No
City: Asheville ,NC ,US Docs: No
Lat/Lon: 35.440287724 ,-82.5358153 Links: No
2 people have recorded their role in this project.
Credits

Jonathan Dough   
Role: Added or clarified information.

Page 6 of 8, showing 15 records out of 106 total, starting on record 76, ending on 90

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