Traffic Flow Characteristics and Lane Use Strategies for Connected and Automated Vehicles in Mixed Traffic Conditions
Managed lanes, such as a dedicated lane for connected and automated vehicles (CAVs), can provide not only technological accommodation but also desired market incentives for road users to adopt CAVs in the near future. In this paper, we investigate traffic flow characteristics with two configurations...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Advanced Transportation |
| Online Access: | http://dx.doi.org/10.1155/2021/8816540 |
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| _version_ | 1832550476520882176 |
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| author | Zijia Zhong Joyoung Lee Liuhui Zhao |
| author_facet | Zijia Zhong Joyoung Lee Liuhui Zhao |
| author_sort | Zijia Zhong |
| collection | DOAJ |
| description | Managed lanes, such as a dedicated lane for connected and automated vehicles (CAVs), can provide not only technological accommodation but also desired market incentives for road users to adopt CAVs in the near future. In this paper, we investigate traffic flow characteristics with two configurations of the managed lane across different market penetration rates and quantify the benefits from the perspectives of lane-level headway distribution, fuel consumption, communication density, and overall network performance. The results highlight the benefits of implementing managed lane strategies for CAVs: (1) A dedicated CAV lane significantly extends the stable region of the speed-flow diagram and yields a greater road capacity. As the result shows, the highest flow rate is 3400 vehicles per hour per lane at 90% market penetration rate with one CAV lane. (2) The concentration of CAVs in one lane results in a narrower headway distribution (with smaller standard deviation) even with partial market penetration. (3) A dedicated CAV lane is also able to eliminate duel-bell-shape distribution that is caused by the heterogeneous traffic flow. (4) A dedicated CAV lane creates a more consistent CAV density, which facilitates communication activity and decreases the probability of packet dropping. |
| format | Article |
| id | doaj-art-33be3da9b6a64cc985696ed17ce48991 |
| institution | Kabale University |
| issn | 0197-6729 2042-3195 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Advanced Transportation |
| spelling | doaj-art-33be3da9b6a64cc985696ed17ce489912025-02-03T06:06:39ZengWileyJournal of Advanced Transportation0197-67292042-31952021-01-01202110.1155/2021/88165408816540Traffic Flow Characteristics and Lane Use Strategies for Connected and Automated Vehicles in Mixed Traffic ConditionsZijia Zhong0Joyoung Lee1Liuhui Zhao2John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, NJ, USAJohn A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, NJ, USACollege of Engineering, Georgia Institute of Technology, GA 30332, Atlanta, USAManaged lanes, such as a dedicated lane for connected and automated vehicles (CAVs), can provide not only technological accommodation but also desired market incentives for road users to adopt CAVs in the near future. In this paper, we investigate traffic flow characteristics with two configurations of the managed lane across different market penetration rates and quantify the benefits from the perspectives of lane-level headway distribution, fuel consumption, communication density, and overall network performance. The results highlight the benefits of implementing managed lane strategies for CAVs: (1) A dedicated CAV lane significantly extends the stable region of the speed-flow diagram and yields a greater road capacity. As the result shows, the highest flow rate is 3400 vehicles per hour per lane at 90% market penetration rate with one CAV lane. (2) The concentration of CAVs in one lane results in a narrower headway distribution (with smaller standard deviation) even with partial market penetration. (3) A dedicated CAV lane is also able to eliminate duel-bell-shape distribution that is caused by the heterogeneous traffic flow. (4) A dedicated CAV lane creates a more consistent CAV density, which facilitates communication activity and decreases the probability of packet dropping.http://dx.doi.org/10.1155/2021/8816540 |
| spellingShingle | Zijia Zhong Joyoung Lee Liuhui Zhao Traffic Flow Characteristics and Lane Use Strategies for Connected and Automated Vehicles in Mixed Traffic Conditions Journal of Advanced Transportation |
| title | Traffic Flow Characteristics and Lane Use Strategies for Connected and Automated Vehicles in Mixed Traffic Conditions |
| title_full | Traffic Flow Characteristics and Lane Use Strategies for Connected and Automated Vehicles in Mixed Traffic Conditions |
| title_fullStr | Traffic Flow Characteristics and Lane Use Strategies for Connected and Automated Vehicles in Mixed Traffic Conditions |
| title_full_unstemmed | Traffic Flow Characteristics and Lane Use Strategies for Connected and Automated Vehicles in Mixed Traffic Conditions |
| title_short | Traffic Flow Characteristics and Lane Use Strategies for Connected and Automated Vehicles in Mixed Traffic Conditions |
| title_sort | traffic flow characteristics and lane use strategies for connected and automated vehicles in mixed traffic conditions |
| url | http://dx.doi.org/10.1155/2021/8816540 |
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