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Transportation operation and safety comparison between unsignalized/signalized offset t-intersections, two-lane roundabout, and modified roundabout
| Title: | Transportation operation and safety comparison between unsignalized/signalized offset t-intersections, two-lane roundabout, and modified roundabout. |
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| Name(s): |
Fleming, Brandon, author Kaisar, Evangelos I., Thesis advisor Florida Atlantic University, Degree grantor College of Engineering and Computer Science Department of Civil, Environmental and Geomatics Engineering |
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| Type of Resource: | text | |
| Genre: | Electronic Thesis Or Dissertation | |
| Date Created: | 2014 | |
| Date Issued: | 2014 | |
| Publisher: | Florida Atlantic University | |
| Place of Publication: | Boca Raton, Fla. | |
| Physical Form: | application/pdf | |
| Extent: | 80 p. | |
| Language(s): | English | |
| Summary: | 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. | |
| Identifier: | FA00004110 (IID) | |
| Degree granted: | Thesis (M.S.)--Florida Atlantic University, 2014. | |
| Collection: | FAU Electronic Theses and Dissertations Collection | |
| Note(s): | Includes bibliography. | |
| Subject(s): |
Roads -- Interchanges and intersections -- Safety measures Traffic circles -- Safety measures Traffic safety Traffic signs and signals -- Design |
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| Held by: | Florida Atlantic University Libraries | |
| Sublocation: | Digital Library | |
| Links: | http://purl.flvc.org/fau/fd/FA00004110 | |
| Persistent Link to This Record: | http://purl.flvc.org/fau/fd/FA00004110 | |
| 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. | |
| Use and Reproduction: | http://rightsstatements.org/vocab/InC/1.0/ | |
| Host Institution: | FAU | |
| Is Part of Series: | Florida Atlantic University Digital Library Collections. |
