Note
Includes bibliography.
Member of
Contributors
Publisher
Florida Atlantic University
Date Issued
2014
EDTF Date Created
2014
Description
Traditional intersections have always caused congestion, delay, and accidents.
There are numerous geometric intersection designs that best fit each situation. This study
performed an operational and safety comparison with unsignalized/signalized offset, Tintersections, a two-lane roundabout, and a modified roundabout to decrease the overall
travel delay and increase the safety using a case study. Using data from a government source, all designs were tested in a calibrated micro simulation model and traffic signals were optimized using a signal optimization platform. Each design was tested with various balancing schemes, left turn percentages, and hourly volumes to determine the failure point. The unsignalized/signalized offset T-intersections, two-lane roundabout, and
modified roundabout were compared by throughputs, travel delay, and travel time. After
analysis, it was determined that the modified roundabout performed the best out of any design. All approaches had minimum travel delay while reducing the number of conflict
points considerably with the modified roundabout.
There are numerous geometric intersection designs that best fit each situation. This study
performed an operational and safety comparison with unsignalized/signalized offset, Tintersections, a two-lane roundabout, and a modified roundabout to decrease the overall
travel delay and increase the safety using a case study. Using data from a government source, all designs were tested in a calibrated micro simulation model and traffic signals were optimized using a signal optimization platform. Each design was tested with various balancing schemes, left turn percentages, and hourly volumes to determine the failure point. The unsignalized/signalized offset T-intersections, two-lane roundabout, and
modified roundabout were compared by throughputs, travel delay, and travel time. After
analysis, it was determined that the modified roundabout performed the best out of any design. All approaches had minimum travel delay while reducing the number of conflict
points considerably with the modified roundabout.
Language
Type
Form
Extent
80 p.
Subject (Topical)
Identifier
FA00004110
Additional Information
Includes bibliography.
Thesis (M.S.)--Florida Atlantic University, 2014.
FAU Electronic Theses and Dissertations Collection
Date Backup
2014
Date Created Backup
2014
Date Text
2014
Date Created (EDTF)
2014
Date Issued (EDTF)
2014
Extension
FAU
IID
FA00004110
Organizations
Attributed name: Florida Atlantic University
Attributed name: College of Engineering and Computer Science
Attributed name: Department of Civil, Environmental and Geomatics Engineering
Person Preferred Name
Fleming, Brandon
author
Graduate College
Physical Description
application/pdf
80 p.
Title Plain
Transportation operation and safety comparison between unsignalized/signalized offset t-intersections, two-lane roundabout, and modified roundabout
Use and Reproduction
Copyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
http://rightsstatements.org/vocab/InC/1.0/
Origin Information
2014
2014
Florida Atlantic University
Boca Raton, Fla.
Physical Location
Florida Atlantic University Libraries
Place
Boca Raton, Fla.
Sub Location
Digital Library
Title
Transportation operation and safety comparison between unsignalized/signalized offset t-intersections, two-lane roundabout, and modified roundabout
Other Title Info
Transportation operation and safety comparison between unsignalized/signalized offset t-intersections, two-lane roundabout, and modified roundabout