page_title: Diamond interchange
section_title: References
hierarchical_section_title: Diamond interchange / References
caption_attribution_description: English: Aerial view of West Lancaster, a community in southern Jefferson Township, Fayette County, Ohio, United States. The village of Octa lies primarily just off the bottom edge of the picture, although its village limits extend along the road that appears from the picture's bottom edge. Picture taken from a Diamond Eclipse light airplane at an altitude of 2,500 feet MSL at an bearing of approximately 5º. The interchange is Interstate 71 over State Route 435, and the divided highway's overpass in the background is U.S. Route 35 passing over the interstate.
context_page_description: A diamond interchange is a common type of road junction, used where a freeway crosses a minor road.
context_section_description: Staff (April 2010). "Chapter 9: Other Interchange Configurations". Alternative Intersections/Interchanges: Informational Report (AIIR). Federal Highway Administration. FHWA-HRT-09-060. Retrieved October 8, 2012.
  Marshall, Chris (2012). "Interchanges: Dumbbell Interchange". Chris's British Road Directory. Self-published. Archived from the original on January 18, 2013. Retrieved February 25, 2013.
  Federal Highway Administration (FHWA): Manual on Uniform Traffic Control Devices (MUTCD), Edition 2009, Revision 2, May 2012], Figure 3C-14. Example of Markings for a Diamond Interchange with Two Circular-Shaped, Roundabout Ramp Terminals, p.412 (PDF p.452)
  "Double Roundabout Interchange: Design and Operations". An Applied Technology and Traffic Analysis Program: Unconventional Arterial Intersection Design. University of Maryland, College Park / Maryland State Highway Administration. 2011. Archived from the original on December 24, 2013. Retrieved February 25, 2013.
  "The New US 31 Hamilton County: Frequently Asked Questions". Hamilton County, Indiana. March 2015. Retrieved December 3, 2015. 
  "Roe Highway / Berkshire Road Interchange" (PDF). Gateway WA. Gateway WA. April 2015. Archived (PDF) from the original on September 26, 2015. Retrieved September 26, 2015.
  Staff (August 2004). "Chapter 10: Alternative Intersection Treatments". Signalized Intersections: Informational Guide. Federal Highway Administration. FHWA-HRT-04-091. Retrieved October 8, 2012.
  Oglesby, Scott. "Diamonds and Other 4-Ramp Interchanges". Kurumi.com. Self-published. Retrieved October 8, 2012.
  Chatterjee, Indrajit & Sharma, Siddharth (2007). Comparative Analysis of Conventional Diamond Interchange and Contra Flow Left Turn (CFL) Interchange (Report). Center for Transportation Research and Education at Iowa State University. S2CID 108139034.
  ATTAP (March 9, 2017). "Unconventional Intersection/Interchange Designs & Strategies". Contraflow Left Interchange. University of Maryland. Retrieved July 15, 2017.
  Amada Dugan: San Marcos opens up region’s first continuous flow intersection KXAN News, 30 April 2014.
  Intersection Improvements to SH 80 and Loop 82 at I-35 777 E Hopkins St, Texas State University, retrieved 30 December 2014.
  TxDOT to modify recently completed I-35, Hopkins Street interchange, San Marcos Mercury, 18 May 2015.
  Staff (April 24, 2012). "Interchange Design Promptlist". Federal Highway Administration, Missouri Division. Retrieved November 27, 2017.
  Garcia, Rene, P.E. (October 1, 2014). "Freeways". Roadway Design Manual. Texas Department of Transportation. Chapter 3: New Location and Reconstruction (4R) Design Criteria, Section 6. Retrieved November 27, 2017.
caption: Diamond interchange on US-35 to I-71 in Jeffersonville, Ohio, at 39°37′10″N 83°36′28″W﻿ / ﻿39.61945°N 83.607858°W﻿ / 39.61945; -83.607858
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