研究者詳細 - 井料　美帆

論文 - 井料　美帆

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パーソナルモビリティと歩行者の混在交通における危険度評価指標の提案

菱川貴之,井料美帆

土木計画学研究・講演集 62 巻頁： 9 2020年11月

Developing a Lane Flow Distribution Estimation Model in Weaving Segments of Urban Expressways

Zhou, Z., Nakamura, H., Iryo-Asano, M., Kakimoto, Y.

62 巻頁： 8 2020年11月

道路利用特性指標と道路ネットワークの機能階層性の関連分析

関原敏裕,柿元祐史,中村英樹,井料美帆

土木計画学研究・講演集 62 巻頁： 9 2020年11月

A Study on Expected Blockage Time of Left Turning Vehicles under the Influence of Pedestrians at Signalized Intersections

Emagnu, Y. M., Zhang, X., Iryo-asano, M., Nakamura, H.

62 巻頁： 8 2020年11月

Pedestrian Presence Probability Distribution under High Demand Conditions at Signalized Crosswalks

Emagnu, Y. M., Iryo-asano, M., Nakamura, H.

61 巻頁： 7 2020年6月

Modeling Traffic Flows on Urban Arterials Considering the Downstream Influence 国際共著国際誌

Zhu Hong, Nakamura Hideki, Alhajyaseen Wael, Iryo-Asano Miho

TRANSPORTATION RESEARCH RECORD 2674 巻 ( 5 ) 頁： 475 - 485 2020年5月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Transportation Research Record

Arterials are important transportation facilities, undertaking the two functions of mobility and accessibility. In the urban area, signalized intersections along arterials are usually closely spaced and bear heavy traffic pressure. Capacities of intersections can be reduced by downstream intersections even without having spillback. This effect will be accumulated and amplified back along the traffic direction and may lead to severe congestion in the upstream intersection which can be frequently observed, especially during peak hours. However, existing traffic simulators cannot capture this phenomenon accurately because they ignore the capacity drop before spillback happens. In this study, downstream influence is quantified by a virtual optimal speed (vop). vop is the speed by which the upstream platoon reaches the endpoint of the queue ahead when the last vehicle in the downstream queue just starts. Based on that, two piecewise regression models, for start-up lost time and saturation flow rate, are formulated to estimate the capacity reduction. These regression models are further introduced to improve the modified cell transmission model (CTM). The result of the simulation experiment shows that the proposed CTM model has better performance in simulating traffic flow on signalized arterials than the existing CTM, especially in reproducing the traffic congestion in upstream. The analysis emphasized the importance of considering the downstream influence when simulating the traffic on signalized arterials. Finally, a sensitivity analysis is designed to further reveal the causes of upstream congestion.

DOI： 10.1177/0361198120916477

Web of Science

Scopus

街路における歩行者の滞留地点選択に関する研究査読有り

菱川貴之,井料美帆

土木学会論文集D3 75 巻 ( 6 ) 頁： I_433 - I_443 2020年4月

自動運転車の挙動と回避性能が歩行者の横断判断に与える影響分析査読有り

可児匠, 井料美帆

交通工学論文集 6 巻 ( 2 ) 頁： 87 - 96 2020年2月

Modeling Trajectories and Trajectory Variation of Turning Vehicles at Signalized Intersections 国際共著

Dias Charitha, Iryo-Asano Miho, Abdullah Muhammad, Oguchi Takashi, Alhajyaseen Wael

IEEE ACCESS 8 巻頁： 109821 - 109834 2020年

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE Access

Information on the trajectories of turning vehicles at signalized intersections can be used in numerous applications, such as movement planning of autonomous vehicles, realistic representation of surrounding vehicle movements in driving simulator and virtual reality applications, and in microscopic simulation tools. However, no proper framework is currently available to realistically model and estimate trajectories of turning vehicles reflecting the intersection geometries, which is critical for the reliability of simulation models. This study explores the applicability of the minimum-jerk principle, which has been initially applied in neuroscience and robotics domains, to model and simulate free-flow trajectories of turning vehicles. The modeling method is validated by comparing model outputs with empirical trajectories collected at several signalized intersections in Nagoya, Japan. The capability of the model in realistically capturing the variations in turning trajectories based on intersection geometry (e.g., intersection angle and turning radius) is also explained. Further, the applicability of the modeling framework at intersections with different geometric features under different speeds and accelerations are also discussed.

DOI： 10.1109/ACCESS.2020.3002020

Web of Science

Scopus

パーソナルモビリティの車種が歩行者のリスク認知に与える影響に関する研究査読有り

菱川貴之, 井料美帆, 長谷川悠

土木学会論文集D3 75 巻 ( 5 ) 頁： 595-605 2019年12月

Japan

Nakamura H

Global Practices on Road Traffic Signal Control: Fixed-Time Control at Isolated Intersections 頁： 163-184 - 184 2019年1月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Global Practices on Road Traffic Signal Control: Fixed-Time Control at Isolated Intersections

This chapter summarizes the basic concept and procedure of traffic signal control in Japan, including not only the current practical settings but also the ideas proposed in the forthcoming Japanese manual. In Section 10.1, a historical overview as well as the current statistics of traffic signal installations are provided. Section 10.2 explains the criteria for how to choose the intersection control type and the quantitative strategy for determining the installation of traffic signals is introduced. Basic ideas of adaptive signal control using time occupancy data are also shown. Regarding the signal phasing plan as in Section 10.4, movement-based control is rarely applied and simple two-phase plans or four-phase plans with permissive-protected right-turn phase (in left-hand traffic) are widely applied conventionally. The detailed calculation method of variables recommended in the Japanese manuals is given in Section 10.5. Although in-depth considerations are proposed in the manual, more simplified methods are applied in practice to obtain several variables, such as settings of intergreen time and minimum pedestrian crossing time. The calculation example in Section 10.7 provides practical approaches with these simple settings to demonstrate the actual conditions in Japan.

DOI： 10.1016/B978-0-12-815302-4.00010-8

Scopus

自動運転車両の混在が信号交差点交通容量に与える影響に関する分析査読有り

鰐部万磨, 柿元祐史, 中村英樹, 井料美帆

交通工学論文集 5 巻 ( 2 ) 頁： 167-175 2019年

Experimental Investigation of Pedestrian Queuing Behaviour

Zhang, JH; Iryo-Asano, M; Dias, C

TRAFFIC AND GRANULAR FLOW '17 頁： 177 - 185 2019年

Calibrating a Social Force based Model for Simulating Personal Mobility Vehicles and Pedestrian Mixed Traffic 査読有り国際共著

C. Dias, M. Iryo-Asano, H. Nishiuchi, T. Todoroki

Simulation Modelling Practice and Theory 87 巻頁： 395-411 2018年9月

Modeling pedestrians' subjective danger perception toward personal mobility vehicles 査読有り

Y. Hasegawa, C. Dias, M. Iryo-Asano, H. Nishiuchi

Transportation Research Part F: Traffic Psychology and Behaviour 56 巻頁： 256-267 2018年7月

パーソナルモビリティに対する歩行者の認知に着目したヴァーチャルリアリティの適応可能性の検討査読有り

長谷川悠, 井料美帆

交通工学論文集 4 巻 ( 1 ) 頁： A_147-A_153 2018年

A Study on the Average Travel Speed on Interrupted Flow Multi-Lane Highways 査読有り

Akandwanaho Edwin, Iryo Miho, Nakamura Hideki

INTERNATIONAL SYMPOSIUM OF TRANSPORT SIMULATION (ISTS'18) AND THE INTERNATIONAL WORKSHOP ON TRAFFIC DATA COLLECTION AND ITS STANDARDIZATION (IWTDCS'18) - EMERGING TRANSPORT TECHNOLOGIES FOR NEXT GENERATION MOBILITY 34 巻頁： 51-58 2018年

A Study on the Impact of AV-HDV Mixed Traffic on Flow Dynamics of Single-Lane Motorway

Kakimoto Yuji, Iryo-Asano Miho, Orhan Emre, Nakamura Hideki

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Transportation Research Procedia

Due to the advancement in technology, it is likely to witness a deployment of Autonomous Vehicles (AV) on the road in the near future. High technical capability of AVs is expected to create different behavioral settings than Human-Driven Vehicles (HDV), such as shorter reaction time and time headway. However, considering AV-HDV mixed traffic conditions in the process of the dissemination, radical behavioral settings of AV might have negative impacts on traffic flow. This paper investigates safety, efficiency and comfort impacts of AV on a single lane motorway considering different reaction time, time headway and percentage of AV in a vehicle platoon. Results of Monte Carlo simulation show that with increased percentage of AV, safety, efficiency and comfort can be improved as far as the time headway of AV is similar to HDV under the assumption that AVs have smaller reaction time than HDVs. However, it can be concluded that the smaller desired minimum time headway may cause the unsafe and uncomfortable condition with the longer reaction time. Therefore, the setting of AV should be carefully selected considering the relationship between the reaction time and the desired minimum time headway.

DOI： 10.1016/j.trpro.2018.11.035

Web of Science

Scopus

Applicability of Virtual Reality Systems for Evaluating Pedestrians' Perception and Behavior

Iryo-Asano Miho, Hasegawa Yu, Dias Charitha

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Transportation Research Procedia

In order to properly design pedestrian spaces, it is important to consider pedestrian safety and comfort. Recently, with the rapid progress of virtual reality (VR) technologies, reproducing objects closer to VR users has become easier. Therefore, VR systems are expected to be valuable tools for evaluating safety and comfort from the pedestrians' viewpoint. In particular, VR enables users to interact not only with ordinary vehicles but also with surrounding pedestrians or personal mobility vehicles, and thus a wider range of applications are expected. However, most attempts to validate VR performance have so far have been limited to cases of pedestrians encountering ordinary vehicles. In this research, pedestrians' cognition and behavioral characteristics toward other pedestrians and personal mobility vehicles were analyzed by comparing those measured in VR and in real spaces. It was shown that the perception of distance and subjective danger from personal mobility vehicles are not different in VR and real spaces when the vehicle approaches VR participants from the front and back, although the subjective danger tends to be less sensitive to the lateral space between VR participants and the personal mobility vehicle. It was also revealed that VR participants tend to keep a larger lateral clearance than in real spaces when avoiding other pedestrians.

DOI： 10.1016/j.trpro.2018.11.015

Web of Science

Scopus

生活道路単路部の横断構成が運転者の走行意識に及ぼす影響に関する研究査読有り

井料美帆

土木学会論文集D3 74 巻 ( 5 ) 頁： 925-933 2018年

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