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Transportation Letters-The International Journal of Transportation Research最新文献

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The development of automated driving in China: a comparison to Germany regarding the government policies, laws and regulations, and industries 自动驾驶在中国的发展:与德国在政府政策、法律法规和行业方面的比较
IF 3.3 3区 工程技术
Transportation Letters-The International Journal of Transportation Research Pub Date : 2024-09-13 DOI: 10.1080/19427867.2023.2238467
{"title":"The development of automated driving in China: a comparison to Germany regarding the government policies, laws and regulations, and industries","authors":"","doi":"10.1080/19427867.2023.2238467","DOIUrl":"10.1080/19427867.2023.2238467","url":null,"abstract":"<div><div>Autonomous technologies have developed incrementally, especially in the car industry. Countries worldwide are giving impetus to developing automated driving (AD) and autonomous vehicles (AVs). China is used as an example of an innovative development model for autonomous driving that has significant practical implications for AD’s development in the global context. Germany also keeps its role as a global hub for the AVs industry, and it has released the most advanced AD laws. This research conducted a thorough comparison of related policies, regulations, and industries in China and Germany in an effort to support the development of AD in China. Further, AD’s advantages, disadvantages, opportunities, and threats in China and Germany are discussed. It sought to identify any shortages of AD in China and find an efficient way to enhance AD cooperation between China and Germany. Based on the dissimilarity of the current status and the disparity in policies, a series of countermeasures and suggestions for the development of the Chinese AD are presented in this study.</div></div>","PeriodicalId":48974,"journal":{"name":"Transportation Letters-The International Journal of Transportation Research","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46066674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A fast simulated annealing heuristic for the multi-depot two-echelon vehicle routing problem with delivery options 具有交付选项的多货站双货柜车路由问题的快速模拟退火启发式
IF 3.3 3区 工程技术
Transportation Letters-The International Journal of Transportation Research Pub Date : 2024-09-13 DOI: 10.1080/19427867.2023.2257923
{"title":"A fast simulated annealing heuristic for the multi-depot two-echelon vehicle routing problem with delivery options","authors":"","doi":"10.1080/19427867.2023.2257923","DOIUrl":"10.1080/19427867.2023.2257923","url":null,"abstract":"<div><div>We studied a variant of the vehicle routing problem (VRP) arising in last-mile distribution, called the multi-depot two-echelon vehicle routing problem with delivery options (MDTEVRP-DO). The MDTEVRP-DO involves two decision levels: (i) designing routes for a fleet of vehicles located in multiple depots to transport customer demands to a set of satellites and (ii) routing a fleet of vehicles from the satellites to serve the final customers. Nowadays, a relevant feature of the problem characterizing delivery services is that customers can collect their packages at pickup stations near their homes or workplaces. We designed an effectively simulated annealing (SA) heuristic for the problem. The new algorithm was extensively tested on benchmark instances from the literature, and its results were compared with those of start-of-the-art algorithms. The results show that the proposed SA obtains 30 out of the 36 best solutions for the MDTEVRP-DO benchmark instances. Moreover, its computation performance is superior to state-of-the-art algorithms for the MDTEVRP-DO.</div></div>","PeriodicalId":48974,"journal":{"name":"Transportation Letters-The International Journal of Transportation Research","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135149921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identifying risky driving behavior: a field study using instrumented vehicles 识别危险驾驶行为：一项使用仪表车辆的实地研究
IF 3.3 3区 工程技术
Transportation Letters-The International Journal of Transportation Research Pub Date : 2024-08-08 DOI: 10.1080/19427867.2023.2233782
{"title":"Identifying risky driving behavior: a field study using instrumented vehicles","authors":"","doi":"10.1080/19427867.2023.2233782","DOIUrl":"10.1080/19427867.2023.2233782","url":null,"abstract":"<div><p>Road crashes continue to be a leading cause of death globally, with most of these crashes reportedly occurring due to human factors. Traditional road safety assessment utilises geometric and traffic parameters that consider road design inadequacies and identify traffic conflicts. However, previous studies do not represent risky driving behavior and its influence on crash occurrence. Incorporating human factors into safety evaluation is crucial to enhance the prediction and subsequent prevention of unsafe events. This research establishes a methodology to identify risky driving behavior using driving performance measures. These measures are computed based on continuous driving profiles collected using instrumented vehicles from a sample set of drivers on an expressway and are compared with historical crash data. The results indicate the significance of driving performance measures in evaluating road safety. The performance measures find application in collision avoidance systems, assessing the road design quality, testing safety countermeasures and guide for policymakers..</p></div>","PeriodicalId":48974,"journal":{"name":"Transportation Letters-The International Journal of Transportation Research","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47388907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Digital and social distractions’ impact on pedestrian road crossing behavior at signalized intersection crosswalks 数字和社交干扰对信号交叉口人行横道行人过马路行为的影响
IF 3.3 3区 工程技术
Transportation Letters-The International Journal of Transportation Research Pub Date : 2024-08-08 DOI: 10.1080/19427867.2023.2233209
{"title":"Digital and social distractions’ impact on pedestrian road crossing behavior at signalized intersection crosswalks","authors":"","doi":"10.1080/19427867.2023.2233209","DOIUrl":"10.1080/19427867.2023.2233209","url":null,"abstract":"<div><p>The study primarily seeks to investigate the behavioral attribution of distraction in pedestrian road crossing. A distraction-themed questionnaire survey was conducted across Kolkata city, India, to understand the contribution of distraction to near-misses and injuries. The survey response showed that among all reported respondents, 13.7% (61) encountered at least one near-miss and 4.5% (20) experienced at least one accident in the past. The video-based observational field study of 2,360 pedestrians revealed that 28.7% of the pedestrians were distracted while crossing the road. Pedestrians who text walked relatively slowly and 7.9% more likely to violate signal. Additionally, mobile phone talkers were observed to be 4.5% more likely to nearly hit/bump into another oncoming pedestrian. The present study constitutes vital information for planners and policymakers and plays a pivotal role in identifying critical intersections and developing countermeasures to minimize the impact or occurrence of pedestrian distraction and unsafe behavior.</p></div>","PeriodicalId":48974,"journal":{"name":"Transportation Letters-The International Journal of Transportation Research","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41693711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
How does tourism affect permanent residents’ travel preferences? The case of Rhodes, Greece 旅游业如何影响永久居民的出行偏好？希腊罗兹的案例
IF 3.3 3区 工程技术
Transportation Letters-The International Journal of Transportation Research Pub Date : 2024-08-08 DOI: 10.1080/19427867.2023.2234709
{"title":"How does tourism affect permanent residents’ travel preferences? The case of Rhodes, Greece","authors":"","doi":"10.1080/19427867.2023.2234709","DOIUrl":"10.1080/19427867.2023.2234709","url":null,"abstract":"<div><p>Tourism is a major source of income for many regions; however, its impacts on residents’ daily lives are significant, especially regarding their travel behavior. Local transportation infrastructure is challenged by large tourist flows, and thus residents need to adapt to the new environment by changing their usual habits, such as travel mode, frequency, destination etc. In this study, a multinomial logistic regression mode choice model is developed to capture tourism impacts on residents’ travel behavior, using data from the island of Rhodes, Greece. According to study findings, tourism has in fact an impact on residents’ travel mode preferences, as they tend to opt for more agile modes such as motorcycles, instead of cars, and adopt defensive driving during tourist seasons. This study can facilitate public transport operators, planners, and municipalities in tourist regions, to apply effective policies to mitigate negative impacts of tourism in local traffic conditions.</p></div>","PeriodicalId":48974,"journal":{"name":"Transportation Letters-The International Journal of Transportation Research","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46951835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
What have we learned about long-term structural change brought about by COVID-19 and working from home? 从2019冠状病毒病和在家工作带来的长期结构性变化中，我们学到了什么?
IF 3.3 3区 工程技术
Transportation Letters-The International Journal of Transportation Research Pub Date : 2024-08-08 DOI: 10.1080/19427867.2023.2237269
{"title":"What have we learned about long-term structural change brought about by COVID-19 and working from home?","authors":"","doi":"10.1080/19427867.2023.2237269","DOIUrl":"10.1080/19427867.2023.2237269","url":null,"abstract":"<div><p>March 2020 will forever be etched in our minds as the beginning of the most concerning health pandemic faced by all generations of the living population. Two-and-three quarter years on, we are starting to see signs for what the future might evolve into through structural change brought about by many events, and no more so than the burgeoning growth in working from home (WFH). WFH is no longer associated with negative stigma, and along with remote working more generally, has become recognised across most sectors of society as a way of work that has benefits for many and is to some extent here to stay. We draw on the research undertaken since March 2020 to summarise the evidence that we use to speculate on what are likely to be the big changes in the land transport sector that would not have been considered, at least to the same extent, pre-COVID-19.</p></div>","PeriodicalId":48974,"journal":{"name":"Transportation Letters-The International Journal of Transportation Research","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41252408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reinforcement learning of route choice considering traveler’s preference 考虑出行者偏好的路线选择强化学习
IF 3.3 3区 工程技术
Transportation Letters-The International Journal of Transportation Research Pub Date : 2024-08-08 DOI: 10.1080/19427867.2023.2231689
{"title":"Reinforcement learning of route choice considering traveler’s preference","authors":"","doi":"10.1080/19427867.2023.2231689","DOIUrl":"10.1080/19427867.2023.2231689","url":null,"abstract":"<div><p>Travelers always perform some preference during the decision-making process. The preference will affect the decision results and can be improved by continuously learning. In order to understand the influence of individual preference on travel behavior choice , two individual preferences, including indifference preference and compulsive preference are considered in the paper. Two updating mechanisms of compulsive preference are proposed to obtain the choosing probability of all alternatives. Reinforcement learning models are established integrating the gain stimulating and loss stimulating considering expected utility. Nguyen Dupuis network is adopted for numerical simulation to study the updating process. Simulation results denote that the equilibrium state is much more efficient when preference learning mechanism is considered comparing with the traditional stochastic user equilibrium model, and can decrease the total travel time greatly, which can be applied for urban traffic management. Personalized traffic guidance is the effective solution to traffic congestion in the future</p></div>","PeriodicalId":48974,"journal":{"name":"Transportation Letters-The International Journal of Transportation Research","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45946653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimal routing and scheduling of unmanned aerial vehicles for delivery services 无人机运输服务的最优路径和调度
IF 3.3 3区 工程技术
Transportation Letters-The International Journal of Transportation Research Pub Date : 2024-08-08 DOI: 10.1080/19427867.2023.2237736
{"title":"Optimal routing and scheduling of unmanned aerial vehicles for delivery services","authors":"","doi":"10.1080/19427867.2023.2237736","DOIUrl":"10.1080/19427867.2023.2237736","url":null,"abstract":"<div><p>In the logistics industry, unmanned aerial vehicles (UAVs) are mostly used for last-mile delivery, in combination with other types of vehicles. There is currently no operator in Taiwan that is completely reliant upon the usage of UAVs for cargo delivery services. Therefore, this study proposes a routing and scheduling model for UAVs by utilizing the network flow technique and mathematical programming methods. All advance requests must be satisfied, and the related operating constraints ensured in the model. The model aims to minimize the total operating cost. To effectively solve large problems that may occur in practice, this study develops a relax-and-fix heuristic. Numerical tests are conducted to preliminarily examine whether the model, coupled with the heuristic algorithm, could be applied in practice. The test results indicate that the proposed model and solution algorithm are effective and thus could be useful for UAV operators to perform delivery routing and scheduling.</p></div>","PeriodicalId":48974,"journal":{"name":"Transportation Letters-The International Journal of Transportation Research","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46877273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A capacity model of signalized intersection with dedicated lanes for automated vehicles 自动驾驶车辆专用车道信号交叉口通行能力模型
IF 3.3 3区 工程技术
Transportation Letters-The International Journal of Transportation Research Pub Date : 2024-08-08 DOI: 10.1080/19427867.2023.2236852
{"title":"A capacity model of signalized intersection with dedicated lanes for automated vehicles","authors":"","doi":"10.1080/19427867.2023.2236852","DOIUrl":"10.1080/19427867.2023.2236852","url":null,"abstract":"<div><p>This paper proposes a capacity model to address the impact of automated dedicated lanes on the capacity of the signalized intersection. Firstly, the car-following modes in the mixed traffic flow are analyzed, and the influence of the setting of the automated dedicated lanes on the average headway is discussed. Secondly, a new capacity model with automated dedicated lanes is derived based on the classic capacity model. Then, a signalized intersection capacity model considering the automated dedicated lanes is further derived based on the saturation flow rate method. Finally, numerical simulation experiments are designed to discuss the key parameters on the traffic capacity of a signalized intersection. The results show that (i) the automated dedicated lanes are conducive to improving the traffic capacity; (ii) when the penetration rate of CAVs is less than 52%, the traffic capacity of the signalized intersection can be increased by nearly 1.25 times with the automated dedicated lanes. These findings can provide theoretical support for designing and optimizing signalized intersections in high levels (i.e. L3-L5) CAVs environments.</p></div>","PeriodicalId":48974,"journal":{"name":"Transportation Letters-The International Journal of Transportation Research","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44502158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mathematical program with equilibrium constraints approach with genetic algorithm for joint optimization of charging station location and discrete transport network design 基于遗传算法的平衡约束数学规划充电站选址与离散交通网络设计联合优化
IF 3.3 3区 工程技术
Transportation Letters-The International Journal of Transportation Research Pub Date : 2024-08-08 DOI: 10.1080/19427867.2023.2237740
{"title":"Mathematical program with equilibrium constraints approach with genetic algorithm for joint optimization of charging station location and discrete transport network design","authors":"","doi":"10.1080/19427867.2023.2237740","DOIUrl":"10.1080/19427867.2023.2237740","url":null,"abstract":"<div><p>This paper focuses on the joint optimization of the charging station location problem (CSLP) and discrete network design problem (DNDP) in a transportation network. We present a variational inequality (VI) formulation to describe the user equilibrium (UE) state of gasoline vehicles (GVs) and electric vehicles (EVs). Based on the mixed-UE model, a mathematical program with equilibrium constraints (MPEC) model is formulated for integrating the decisions of deploying EV charging stations (EVCSs) and adding new links to minimize the total travel cost (TTC) of all vehicles. A modified genetic algorithm is developed to tackle the MPEC model with an adaptive path generation procedure to address the mixed-UE model. Finally, we conduct numerical experiments to identify the efficacy of the proposed models and algorithms. Specifically, we propose a two-step optimization model and explore a performance comparison between the joint and two-step optimization approaches, while the joint optimization exhibits superiority in minimizing the TTC.</p></div>","PeriodicalId":48974,"journal":{"name":"Transportation Letters-The International Journal of Transportation Research","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42969317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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