This report is a presentation of results obtained from research studies on
diamond interchanges conducted by the Texas Transportation Institute in cooperation with the Texas Highway Department. These studies were conducted
in connection with Research Project RP-16, .. Ramps and Interchanges, .. and
had the objective of investigating the capacity, design., and operation of conventional-type diamond interchanges. The initial studies were designed to evaluate only the capacity of a conventional-type diamond interchange. The procedure and results of these
studies were reported in a paper entitled "Capacity Study of Signalized
Diamond Interchanges." This report was presented at the 40th annual meeting
of the Highway Research Board and was distributed to the various districts
and offices of the Texas Highway Department.
In addition to the capacity studies, there existed a need for additional
research to develop data which would serve as criteria in the design and
signalization of diamond interchanges. The results of this research are presented as a major portion of this report.
This document provides information and guidance on the Diverging Diamond Interchange (DDI). To the extent possible, the guideaddresses a variety of co...
This study evaluates two versions of the new super diverging diamond interchange (Super DDI) design as a possible alternative to improve the performan...
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.
United States Department of Transportation
[PDF-2.62 MB]
