New Intersection Concept: Two-Way Continuous T-intersection

Arterials throughout the country are experiencing increased delays due to inefficient capacity at at-grade intersections. This increased congestion often correlates to increased safety issues. Standard ways of upgrading at-grade intersections are often not efficient and upgrading to grade-separated intersections is many times cost-prohibitive or simply not feasible. A new way to design intersections and interchanges is beginning to emerge in recent years called innovative geometric design. These new designs improve traffic operations and safety at an often reduced cost compared to other solutions. This paper will introduce a new intersection invented by the author called the Two-Way Continuous-T Intersection. This paper will explain how this new intersection can allow continuous movement for both directions of the major roadway while still providing benefits for left turning movements in a three-legged intersection. Signal phasing and other traffic operations are discussed on a general level for the new design as well as some of the benefits and drawbacks of the design. Potential locations for application are also discussed in the paper.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AHB65 Operational Effects of Geometrics
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Chlewicki, Gilbert
• Conference:
  • Transportation Research Board 91st Annual Meeting
  • Location: Washington DC, United States
  • Date: 2012-1-22 to 2012-1-26
• Date: 2012

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Tables;
• Pagination: 11p
• Monograph Title: TRB 91st Annual Meeting Compendium of Papers DVD

Subject/Index Terms

• TRT Terms: Left turns; T intersections; Traffic safety; Traffic signal timing
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 01371132
• Record Type: Publication
• Report/Paper Numbers: 12-3626
• Files: TRIS, TRB
• Created Date: May 25 2012 9:32AM