Characteristics of Traffic Flow at Nonsignalized T-Shaped Intersection with U-Turn Movements
Most nonsignalized T-shaped intersections permit U-turn movements, which make the traffic conditions of intersection complex. In this paper, a new cellular automaton (CA) model is proposed to characterize the traffic flow at the intersection of this type. In present CA model, new rules are designed...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/856416 |
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| _version_ | 1849744212005748736 |
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| author | Hong-Qiang Fan Bin Jia Xin-Gang Li Jun-Fang Tian Xue-Dong Yan |
| author_facet | Hong-Qiang Fan Bin Jia Xin-Gang Li Jun-Fang Tian Xue-Dong Yan |
| author_sort | Hong-Qiang Fan |
| collection | DOAJ |
| description | Most nonsignalized T-shaped intersections permit U-turn movements, which make the traffic conditions of intersection complex. In this paper, a new cellular automaton (CA) model is proposed to characterize the traffic flow at the intersection of this type. In present CA model, new rules are designed to avoid the conflicts among different directional vehicles and eliminate the gridlock. Two kinds of performance measures (i.e., flux and average control delay) for intersection are compared. The impacts of U-turn movements are analyzed under different initial conditions. Simulation results demonstrate that (i) the average control delay is more practical than flux in measuring the performance of intersection, (ii) U-turn movements increase the range and degree of high congestion, and (iii) U-turn movements on the different direction of main road have asymmetrical influences on the traffic conditions of intersection. |
| format | Article |
| id | doaj-art-eb92cb5b209e447ead3d11ce6fd82de8 |
| institution | DOAJ |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-eb92cb5b209e447ead3d11ce6fd82de82025-08-20T03:21:16ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/856416856416Characteristics of Traffic Flow at Nonsignalized T-Shaped Intersection with U-Turn MovementsHong-Qiang Fan0Bin Jia1Xin-Gang Li2Jun-Fang Tian3Xue-Dong Yan4MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, ChinaMOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, ChinaMOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, ChinaMOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, ChinaMOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, ChinaMost nonsignalized T-shaped intersections permit U-turn movements, which make the traffic conditions of intersection complex. In this paper, a new cellular automaton (CA) model is proposed to characterize the traffic flow at the intersection of this type. In present CA model, new rules are designed to avoid the conflicts among different directional vehicles and eliminate the gridlock. Two kinds of performance measures (i.e., flux and average control delay) for intersection are compared. The impacts of U-turn movements are analyzed under different initial conditions. Simulation results demonstrate that (i) the average control delay is more practical than flux in measuring the performance of intersection, (ii) U-turn movements increase the range and degree of high congestion, and (iii) U-turn movements on the different direction of main road have asymmetrical influences on the traffic conditions of intersection.http://dx.doi.org/10.1155/2013/856416 |
| spellingShingle | Hong-Qiang Fan Bin Jia Xin-Gang Li Jun-Fang Tian Xue-Dong Yan Characteristics of Traffic Flow at Nonsignalized T-Shaped Intersection with U-Turn Movements The Scientific World Journal |
| title | Characteristics of Traffic Flow at Nonsignalized T-Shaped Intersection with U-Turn Movements |
| title_full | Characteristics of Traffic Flow at Nonsignalized T-Shaped Intersection with U-Turn Movements |
| title_fullStr | Characteristics of Traffic Flow at Nonsignalized T-Shaped Intersection with U-Turn Movements |
| title_full_unstemmed | Characteristics of Traffic Flow at Nonsignalized T-Shaped Intersection with U-Turn Movements |
| title_short | Characteristics of Traffic Flow at Nonsignalized T-Shaped Intersection with U-Turn Movements |
| title_sort | characteristics of traffic flow at nonsignalized t shaped intersection with u turn movements |
| url | http://dx.doi.org/10.1155/2013/856416 |
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