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Title:

Readily Implementable Signal Phasing Schemes for Diverging Diamond Interchanges
Cover of Readily Implementable Signal Phasing Schemes for Diverging Diamond Interchanges

Accession Number:

01551180

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Diverging Diamond Interchanges (DDI) are emerging as an efficient alternative to conventional diamond interchanges with proven safety and operational efficiency. The number of DDIs is expected to increase significantly in the U.S. over the next decade. While geometric design of DDIs is getting mature based on experiences from existing sites, traffic operations, particularly the various signal phasing schemes, are not yet well defined and recognized. This paper provides five feasible signal phasing schemes which can be easily implemented using standard NEMA 8- phase signal controllers. Discussions are provided regarding the advantages and disadvantages of each phasing scheme. These phasing schemes should be implemented according to the specific traffic pattern and geometric layout of DDI sites in order to achieve the best operational performance. Other relevant issues included in the paper are pedestrian handling, yellow change and red clearance intervals at DDIs.

Supplemental Notes:

This paper was sponsored by TRB committee AHB25 Traffic Signal Systems.

Monograph Accession #:

01550057

Report/Paper Numbers:

15-0723

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Tian, Zong
Xu, Hao
de Camp, Gerry
Kyte, Michael
Wang, Yinhai

Pagination:

11p

Publication Date:

2015

Conference:

Transportation Research Board 94th Annual Meeting

Location: Washington DC, United States
Date: 2015-1-11 to 2015-1-15
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References

Uncontrolled Terms:

Diverging diamond interchanges

Subject Areas:

Highways; Operations and Traffic Management; I21: Planning of Transport Infrastructure; I73: Traffic Control

Source Data:

Transportation Research Board Annual Meeting 2015 Paper #15-0723

Files:

PRP, TRIS, TRB, ATRI

Created Date:

Dec 30 2014 12:20PM