A Novel Methodology for Estimating the Capacity and Level of Service for the New Mega Elliptical Roundabout Intersection
Mega elliptical roundabout is a new intersection on rural multilane highways. This intersection was developed in a previous paper using simulation data, and the authors found that it is better than interchange (full cloverleaf) in most scenarios of traffic flow. Basically, there are no guidelines or...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Journal of Advanced Transportation |
| Online Access: | http://dx.doi.org/10.1155/2020/8467152 |
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| _version_ | 1832556365008076800 |
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| author | Ahmed I. Z. Mohamed Yusheng Ci Yiqiu Tan |
| author_facet | Ahmed I. Z. Mohamed Yusheng Ci Yiqiu Tan |
| author_sort | Ahmed I. Z. Mohamed |
| collection | DOAJ |
| description | Mega elliptical roundabout is a new intersection on rural multilane highways. This intersection was developed in a previous paper using simulation data, and the authors found that it is better than interchange (full cloverleaf) in most scenarios of traffic flow. Basically, there are no guidelines or procedures for designing mega elliptical roundabout in AASHTO Green Book, Federal Highway Administration guides, and Highway Capacity Manual. Thus, the purpose of this study is to analyze the traffic operation performance and propose a methodology for calculating the capacity of mega elliptical roundabout and also the level of service by gap acceptance theory. Moreover, this research studied the influence of different values of truck ratios and also different values of a major highway speed on geometric design and traffic operation performance for mega elliptical roundabout. To validate the thoroughness of the proposed methodology, VISSIM simulations were conducted. This research will assist practitioners in determining the appropriate geometric design, assessing mega elliptical roundabout intersections, and making comparisons with other alternatives. |
| format | Article |
| id | doaj-art-d1c6c48388134d17b39adb530084b447 |
| institution | Kabale University |
| issn | 0197-6729 2042-3195 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Advanced Transportation |
| spelling | doaj-art-d1c6c48388134d17b39adb530084b4472025-02-03T05:45:45ZengWileyJournal of Advanced Transportation0197-67292042-31952020-01-01202010.1155/2020/84671528467152A Novel Methodology for Estimating the Capacity and Level of Service for the New Mega Elliptical Roundabout IntersectionAhmed I. Z. Mohamed0Yusheng Ci1Yiqiu Tan2School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, ChinaSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, ChinaSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, ChinaMega elliptical roundabout is a new intersection on rural multilane highways. This intersection was developed in a previous paper using simulation data, and the authors found that it is better than interchange (full cloverleaf) in most scenarios of traffic flow. Basically, there are no guidelines or procedures for designing mega elliptical roundabout in AASHTO Green Book, Federal Highway Administration guides, and Highway Capacity Manual. Thus, the purpose of this study is to analyze the traffic operation performance and propose a methodology for calculating the capacity of mega elliptical roundabout and also the level of service by gap acceptance theory. Moreover, this research studied the influence of different values of truck ratios and also different values of a major highway speed on geometric design and traffic operation performance for mega elliptical roundabout. To validate the thoroughness of the proposed methodology, VISSIM simulations were conducted. This research will assist practitioners in determining the appropriate geometric design, assessing mega elliptical roundabout intersections, and making comparisons with other alternatives.http://dx.doi.org/10.1155/2020/8467152 |
| spellingShingle | Ahmed I. Z. Mohamed Yusheng Ci Yiqiu Tan A Novel Methodology for Estimating the Capacity and Level of Service for the New Mega Elliptical Roundabout Intersection Journal of Advanced Transportation |
| title | A Novel Methodology for Estimating the Capacity and Level of Service for the New Mega Elliptical Roundabout Intersection |
| title_full | A Novel Methodology for Estimating the Capacity and Level of Service for the New Mega Elliptical Roundabout Intersection |
| title_fullStr | A Novel Methodology for Estimating the Capacity and Level of Service for the New Mega Elliptical Roundabout Intersection |
| title_full_unstemmed | A Novel Methodology for Estimating the Capacity and Level of Service for the New Mega Elliptical Roundabout Intersection |
| title_short | A Novel Methodology for Estimating the Capacity and Level of Service for the New Mega Elliptical Roundabout Intersection |
| title_sort | novel methodology for estimating the capacity and level of service for the new mega elliptical roundabout intersection |
| url | http://dx.doi.org/10.1155/2020/8467152 |
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