• Title/Summary/Keyword: 차로변경방해

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Analysis of Truck Platooning Operation Conditions Affecting Traffic Flow (교통류에 영향을 주는 화물차 군집주행 운영 조건 분석)

  • Jung, Harim;Lee, Young-taek;Park, Sangmin;Cho, Hyunbae;Yun, Ilsoo
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.20 no.4
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    • pp.106-117
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    • 2021
  • In Korea, interest in truck platooning is increasing because most cargo transportation is done by road. Truck platooning is the operation of two or more trucks in a row to form one platoon, which can increase road capacity and improve fuel efficiency. In this study, to analyze the effect of truck platooning on traffic flow, scenarios were created according to traffic conditions and truck platooning operating conditions. In order to understand the effect of the truck platooning operating conditions, correlation analysis was conducted with the average travel speed, the number of lane change disturbance, and the number of disturbance in the entry/exit section. As a result, the number of trucks in the platoon, the spacing of trucks in the platoon, and the spacing between platoons were found to have an effect on the average speed and the number of lane change disturbance In addition, the truck platooning ratio was found to have a strong correlation with the average travel speed and the number of lane change disturbance regardless of the LOS.

A Study on the Length of Deceleration Lane at Freeway Diverging Areas (고속도로 분기부에서의 감속차로 길이에 관한 연구)

  • Kim, Dong Nyong
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.29 no.2D
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    • pp.227-234
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    • 2009
  • At present, the length of deceleration lane at freeway diverging areas are designed based on the design speed of main lines and ramps. This is possible on assumption that diverging vehicles decelerate at deceleration section after moving to shoulder lane in advance. But with high diverging volume, several vehicles will try to change to exit lane at the same time. This will cause the distribution of main lane flows or some vehicles may encounter short deceleration length because they miss the proper time to change the lane. The purpose of this study is to establish a design guideline of the length of deceleration section considering the volume of diverging traffic. Also, the results of analysis by the FRESIM simulation model shows that some improvements in respect of delays, speeds and speed deviations of mainline and deceleration lane.

A study of Drivers' Behaviors using a Driving Simulator(with Special Reference of Driving Anger and Traffic Congestion (차량 시뮬레이터를 이용한 운전행동 연구(운전분노 및 교통정체를 중심으로))

  • Song, Hye-Su;Sin, Yong-Gyun;Gang, Su-Cheol
    • Journal of Korean Society of Transportation
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    • v.23 no.2
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    • pp.61-74
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    • 2005
  • This study is to investigate the effects of driving anger and traffic congestion on drivers' behaviors. Driving anger is the propensity to become angry while driving, and people differ in the tendency to get angry when encountering frustration and provocation on the road. Individual differences of the propensity contribute to anger on the road and aggressive driving leading traffic vaiolations and accidents. In the experiment three traffic conditions (an open road condition, a bumper-to-bumper traffic condition and a being stuck behind a slower driver condition) were simulated and driving behaviors were collected with RTSA-DS(Road Traffic Safety Authority-Driving Simulator). The results were as follows: Most of high anger drives drove at higher speeds in an open road condition, and in the bumper-to-bumper condition they drove faster and had an higher crash rate, which suggests they did aggressive driving, and risky and unsafe behaviors.

A Study on Construction of Express Lane Applied by Bus Only Lane as Seperation Facility: Focused on Pangyo-Hannam Section of Gyeongbu Expressway (버스전용차로를 분리시설로 활용한 Express Lane 구축에 관한 연구: 경부고속도로 판교-한남 구간을 중심으로)

  • Kim, Min Kyoung;Kim, Ju Hyun;Shin, Eon Kyo
    • Journal of Korean Society of Transportation
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    • v.31 no.4
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    • pp.32-46
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    • 2013
  • Because of short length between interchanges, traffic congestion has been caused by a lot of short trip traffic in the urban section of interregional expressway. Also, in case of expressway with Bus Only Lane, bus causes dangerous situation by conflicting between vehicles and buses in order to access from Bus Only Lane to IC. Therefore, this study aims to propose Express Lane applied by Bus Only Lane as a new lane operation in order to efficiently operate and to analyze the effectiveness on constructing Express Lane to the Pangyo-Hannam section in Gyeongbu Expressway. The study analyzes effectiveness by scenario using the micro traffic simulation tool, VISSIM 5.4. For this, the indicators which evaluate construction effect of Express Lane, are used by average delay time, average speed and total travel time. The results of the study showed the best effectiveness when Express Lane installed one, and it represented an ideal traffic condition when long distance trip traffic of the whole traffic is 25% in the study section. Therefore, the construction of Express Lane using Bus Only Lane achieves positive effectiveness on safety and expense aspect as well as uncongested flow.

Importance and Satisfaction Rating Assessment of users Regarding BRT Facility and Operation : The Case of Busan (BRT 시설 및 운영에 관한 이용자의 중요도 만족도 평가 : 부산광역시를 중심으로)

  • Kim, Seong Eun;Jung, Hun Young
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.39 no.5
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    • pp.595-603
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    • 2019
  • To alleviate the demand on private car that is constantly increasing, Busan Metropolitan City (BMC) has established Bus Rapid Transit (BRT) to revitalize public transportation. But there are no unified lane system between BRT and general bus stations, which makes off-lane turning general bus to contribute to congestion. And as the bottleneck phenomenon at entrance/exit accelerates the congestion, there has been huge dissatisfaction among commuting drivers. Therefore, this study identifies efficient methods to operate better through measuring civilian awareness. We evaluate both satisfaction and drawbacks on BRT service with Importance-Performance Analysis (IPA). We first distinguish the groups by the awareness on BRT and their main transit usage, and then clarify the difference between the groups. And as a result, the group who is positive to BRT and uses buses often demands improvement in bus indoor comfort and curbing jaywalking. On the other hand, group who is negative to BRT and uses private cars often demands improvement in lane changing and the moving speed of private cars. We next examines the groups with MDPREF, one method of Multidimensional Scaling (MDS). And we have clarified that the evaluating criteria and the individual attributes of the groups corresponds very well.