Future Transportation最新文献

Planning of Urban Freight Innovation Ecosystems: A Systematic Literature Review from a Public Authority Perspective 城市货运创新生态系统规划：公共机构视角下的系统文献综述

Future Transportation Pub Date : 2024-07-16 DOI: 10.3390/futuretransp4030038

Luciano Agustin Pana Tronca, Lucia Rotaris

{"title":"Planning of Urban Freight Innovation Ecosystems: A Systematic Literature Review from a Public Authority Perspective","authors":"Luciano Agustin Pana Tronca, Lucia Rotaris","doi":"10.3390/futuretransp4030038","DOIUrl":"https://doi.org/10.3390/futuretransp4030038","url":null,"abstract":"This study explores the role of local authorities in achieving net zero emissions in the context of the climate crisis, with a particular focus on the freight transport sector. The study identifies the challenges of decarbonising urban freight transport and highlights the need for planning frameworks to facilitate this transition. The authors examine freight innovation ecosystems and the various actors involved in designing public policies that incentivise the creation or enhancement of these ecosystems. Through a systematic literature review, bibliometric analysis, and content analysis, this study identifies a lack of connection between the literature on these topics. However, it also highlights the potential for lessons to be learned from successful incentive frameworks in the four clusters identified. The authors propose a comprehensive incentives framework that includes both direct and indirect incentives aimed at the ecosystem and the public sector, respectively, as well as city conditions that can facilitate systemic change. Overall, this study provides valuable insights for policymakers and stakeholders seeking to promote sustainable transport and achieve net zero emissions.","PeriodicalId":238233,"journal":{"name":"Future Transportation","volume":" 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141831268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Digital Traceability Capabilities: The Case of the Ethiopian Coffee Supply Chain 数字可追溯能力：埃塞俄比亚咖啡供应链案例

Future Transportation Pub Date : 2024-07-12 DOI: 10.3390/futuretransp4030037

M. Tadesse, G. Gebresenbet, D. Ljungberg, L. Tavasszy

{"title":"Digital Traceability Capabilities: The Case of the Ethiopian Coffee Supply Chain","authors":"M. Tadesse, G. Gebresenbet, D. Ljungberg, L. Tavasszy","doi":"10.3390/futuretransp4030037","DOIUrl":"https://doi.org/10.3390/futuretransp4030037","url":null,"abstract":"Digital technologies are essential tools that enable traceability in supply chains. In low-income countries, traceability represents a challenge due to the complicated structure of supply chains and the involvement of multiple stakeholders. This research developed a framework for a digital traceability system (TS), using the Ethiopian coffee supply chain as a case study. A literature review was conducted to gain an in-depth understanding of state-of-the-art digital traceability technologies. A logistics audit was conducted to map the coffee supply chain in Ethiopia and evaluate the implementation level of traceability technologies. Although the implementation of traceability technologies in the Ethiopian coffee supply chain is low, the results revealed that the usage of traceability technologies improves downstream of the supply chain. The traceability framework developed in this study ranges from a paper-based TS to a fully digitalised TS. The implementation of a TS in the coffee supply chain of Ethiopia is met with several challenges such as affordability, limited awareness, resistance of certain stakeholders, infrastructure limitations, restricted accessibility of some technologies and insufficient policy frameworks. Stakeholders from low-income countries can use the framework developed in this study to adopt a TS for their supply chains in line with their needs and current digitalisation levels.","PeriodicalId":238233,"journal":{"name":"Future Transportation","volume":"19 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141652579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deriving Verified Vehicle Trajectories from LiDAR Sensor Data to Evaluate Traffic Signal Performance 从激光雷达传感器数据中得出经过验证的车辆轨迹，以评估交通信号性能

Future Transportation Pub Date : 2024-07-09 DOI: 10.3390/futuretransp4030036

Enrique D. Saldivar-Carranza, Darcy M. Bullock

{"title":"Deriving Verified Vehicle Trajectories from LiDAR Sensor Data to Evaluate Traffic Signal Performance","authors":"Enrique D. Saldivar-Carranza, Darcy M. Bullock","doi":"10.3390/futuretransp4030036","DOIUrl":"https://doi.org/10.3390/futuretransp4030036","url":null,"abstract":"Advances and cost reductions in Light Detection and Ranging (LiDAR) sensor technology have allowed for their implementation in detecting vehicles, cyclists, and pedestrians at signalized intersections. Most LiDAR use cases have focused on safety analyses using its high-fidelity tracking capabilities. This study presents a methodology to transform LiDAR data into localized, verified, and linear-referenced trajectories to derive Purdue Probe Diagrams (PPDs). The following four performance measures are then derived from the PPDs: arrivals on green (AOG), split failures (SF), downstream blockage (DSB), and control delay level of service (LOS). Noise is filtered for each detected vehicle by iteratively projecting each sample’s future location and keeping the subsequent sample that is close enough to the estimated destination. Then, a far side is defined for the analyzed intersection’s movement to linear reference sampled trajectories and to remove those that do not cross through that point. The technique is demonstrated by using over one hour of LiDAR data at an intersection in Utah to derive PPDs. Signal performance is then estimated from these PPDs. The results are compared to those obtained from comparable PPDs derived from connected vehicle (CV) trajectory data. The generated PPDs from both data sources are similar, with relatively modest differences of 1% AOG and a 1.39 s/veh control delay. Practitioners can use the presented methodology to estimate trajectory-based traffic signal performance measures from their deployed LiDAR sensors. The paper concludes by recommending that unfiltered LiDAR data are used for deriving PPDs and extending the detection zones to cover the largest observed queues to improve performance estimation reliability.","PeriodicalId":238233,"journal":{"name":"Future Transportation","volume":"82 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141664485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determinants of the Willingness to Use Autonomous Mobility as a Service in Germany 德国自主交通服务使用意愿的决定因素

Future Transportation Pub Date : 2024-07-08 DOI: 10.3390/futuretransp4030035

Frieder Glimm, Michal Fabuš

{"title":"Determinants of the Willingness to Use Autonomous Mobility as a Service in Germany","authors":"Frieder Glimm, Michal Fabuš","doi":"10.3390/futuretransp4030035","DOIUrl":"https://doi.org/10.3390/futuretransp4030035","url":null,"abstract":"Fully autonomous vehicles, once legally and technically feasible and widely available, have numerous advantages compared to human-driven vehicles, from greater availability and shorter travel times to lower negative environmental emissions and fewer accidents. This, combined with a usage-based form of payment, can massively increase the usage rate of vehicles without the need for high initial investments. This study explores the determinants affecting the willingness to adopt Autonomous Mobility as a Service (AMaaS) in Germany. Utilizing a mobile cross-sectional survey via Pollfish, 400 complete responses of German speakers aged 18 years or older in Germany were collected to assess influential factors. The survey data were analyzed using binary logistic regression analysis. Age, possession of a driving license, and the quality of public transport were identified as significant predictors. Younger people and driving license holders showed a higher willingness to use AMaaS, while low-quality public transport reduced their willingness to use it. This study concludes that targeted strategies for AMaaS implementation should consider these key demographic and infrastructural factors to maximize market penetration and acceptance in Germany.","PeriodicalId":238233,"journal":{"name":"Future Transportation","volume":" 46","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141670408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interactions and Behaviors of Pedestrians with Autonomous Vehicles: A Synthesis 行人与自动驾驶汽车的互动和行为：综述

Future Transportation Pub Date : 2024-07-04 DOI: 10.3390/futuretransp4030034

S. Rezwana, Nicholas Lownes

{"title":"Interactions and Behaviors of Pedestrians with Autonomous Vehicles: A Synthesis","authors":"S. Rezwana, Nicholas Lownes","doi":"10.3390/futuretransp4030034","DOIUrl":"https://doi.org/10.3390/futuretransp4030034","url":null,"abstract":"Integrating autonomous vehicles (AVs) into public roads presents profound implications for pedestrian safety and the broader acceptance of this emerging technology. This work examines the complex interactions between AVs and pedestrians, a dynamic influenced by the variability of pedestrian behaviors and the absence of traditional communication mechanisms, such as eye contact and gestures, commonly relied upon in human-driven scenarios. Given the nascent stage of AV deployment, this research addresses the challenges of evaluating AV−pedestrian interactions amid safety concerns and technological limitations. We review and synthesize global research on pedestrian behavior in the context of AV technology to track changes in pedestrians’ acceptance over time and identify the factors driving these shifts. Additionally, this review incorporates insights from transportation authorities to highlight potential safety issues and the need for innovative communication strategies that ensure safe interactions between pedestrians and AVs. By analyzing these factors, the research aims to contribute to the development of guidelines and communication protocols that enhance pedestrian safety and facilitate the integration of AVs into urban environments.","PeriodicalId":238233,"journal":{"name":"Future Transportation","volume":" 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141678237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scenarios for New Mobility Policies and Automated Mobility in Beijing 北京新交通政策和自动驾驶交通的设想方案

Future Transportation Pub Date : 2024-07-03 DOI: 10.3390/futuretransp4030033

Gillian Harrison, Simon Shepherd, P. Pfaffenbichler, Meng Xu, Hang Tian, Wei Mao

{"title":"Scenarios for New Mobility Policies and Automated Mobility in Beijing","authors":"Gillian Harrison, Simon Shepherd, P. Pfaffenbichler, Meng Xu, Hang Tian, Wei Mao","doi":"10.3390/futuretransp4030033","DOIUrl":"https://doi.org/10.3390/futuretransp4030033","url":null,"abstract":"In this study, we consider the introduction of new mobility services and technologies into the megacity of Beijing, China, as per developed strategy and action plans, in order to investigate their potential contribution to sustainable mobility. This includes population relocation (decentralization), the construction of new rail lines, the introduction of shared bike services as a feeder to subway stations, the electrification of passenger vehicles and the adoption of automated and shared vehicles. The well-established, system dynamics-based MARS model is adapted to Beijing and further improved via the inclusion of these new services, technologies and policies. We find that decentralization can have a profound effect on overall sustainability if not considered in conjunction with other policies and that new rail lines and shared bikes may only have benefits in specific zones. Shared and automated vehicles could increase VKT by 60% and reduce active and public transport trips by a quarter. As such, nuanced integrated policy approaches will be required that are similar to those currently in place, such as imposed car shedding and taxi fleet control.","PeriodicalId":238233,"journal":{"name":"Future Transportation","volume":"5 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141683446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison at Scale of Traffic Signal Cycle Split Failure Identification from High-Resolution Controller and Connected Vehicle Trajectory Data 从高分辨率控制器和联网车辆轨迹数据识别交通信号周期分裂故障的规模比较

Future Transportation Pub Date : 2024-03-01 DOI: 10.3390/futuretransp4010012

Enrique D. Saldivar-Carranza, Saumabha Gayen, Howell Li, Darcy M. Bullock

{"title":"Comparison at Scale of Traffic Signal Cycle Split Failure Identification from High-Resolution Controller and Connected Vehicle Trajectory Data","authors":"Enrique D. Saldivar-Carranza, Saumabha Gayen, Howell Li, Darcy M. Bullock","doi":"10.3390/futuretransp4010012","DOIUrl":"https://doi.org/10.3390/futuretransp4010012","url":null,"abstract":"Split failures have been a conventional method to estimate overcapacity at signalized intersections. Currently, split failures are estimated from high-resolution (HR) traffic signal controller event data by evaluating occupancy at the stop bar. Recently, a technique that uses high-fidelity connected vehicle (CV) trajectory data to estimate split failures has been developed and has been adopted by some agencies. This paper compares cycle-by-cycle split failure estimations from both techniques for 42 signalized intersections across central Indiana. CV trajectories were assigned to a cycle based on their arrival characteristics. Then, HR and CV data were used to determine whether each cycle split fails. Finally, agreements and discrepancies were quantified and evaluated. The results obtained after analyzing over 35,000 cycles showed that both techniques produce similar overall split failure estimations. The HR and the CV methods identified 4% and 3% of all cycles as split failing, respectively. However, only 23% of all cycles determined as split failing with the HR approach were also identified as split failing with CV data. Similarly, only 30% of all cycles determined as split failing with the CV approach were also identified as split failing with the HR approach. This indicates significant discrepancies on a cycle-by-cycle basis. Using CV data to identify split failing cycles produces more conservative results and is based on the entire experience of traversing vehicles. If data are available, the authors recommend the CV approach when allocating limited agency resources for operational improvement activities.","PeriodicalId":238233,"journal":{"name":"Future Transportation","volume":" 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140091546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Applying Density-Based Clustering for the Analysis of Emission Events in Real Driving Emissions Calibration 在实际驾驶排放校准中应用基于密度的聚类分析排放事件

Future Transportation Pub Date : 2024-01-10 DOI: 10.3390/futuretransp4010004

Sascha Krysmon, Stefan Pischinger, Johannes Claßen, Georgi Trendafilov, Marc Düzgün, Frank Dorscheidt, M. Nijs, Michael Görgen

{"title":"Applying Density-Based Clustering for the Analysis of Emission Events in Real Driving Emissions Calibration","authors":"Sascha Krysmon, Stefan Pischinger, Johannes Claßen, Georgi Trendafilov, Marc Düzgün, Frank Dorscheidt, M. Nijs, Michael Görgen","doi":"10.3390/futuretransp4010004","DOIUrl":"https://doi.org/10.3390/futuretransp4010004","url":null,"abstract":"Further reducing greenhouse gas and pollutant emissions from road vehicles is a major task for the automotive industry. Stricter regulations regarding emissions and fleet fuel consumption require the continuous development of new powertrains and methods. In particular, the combination of hybrid powertrains on the technical side and the focus on real driving emissions (RDE) on the legislative side pose significant challenges to the vehicle calibration process. Against this background, new test methods and environments are being investigated to counteract the high number of interactions between hybrid drive systems and quasi-infinite test conditions due to RDE. Complementary to new test environments, innovative methods for data analysis are needed that allow the exploitation of the complete potential of measurement data. The application of such a method in the field of emission calibration is presented in this paper. For this purpose, a clustering method (HDBSCAN) is applied to critical sequences from emission tests. Within this presentation, the clustering process is based on a single signal only. This paper shows how signals of various characteristics can be processed with dynamic time warping and generically structured with the clustering method used. Here, 959 single events are automatically categorized into 24 clusters. This provides a new basis for system evaluation, enabling the automatic identification, categorization, and prioritization of calibration weaknesses. Using twelve signals of different characteristics, the generic usability of the clustering method is demonstrated.","PeriodicalId":238233,"journal":{"name":"Future Transportation","volume":"5 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139439584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimal Route Crowd-Shipping System for Sustainable Rapid Delivery: Algorithm, Simulation, and Feasibility Evaluation 可持续快速交付的最优路线人群运输系统：算法、模拟和可行性评估

Future Transportation Pub Date : 2023-12-27 DOI: 10.3390/futuretransp4010001

Lior Aronshtam, Benny Sand, Tammar Shrot, Ruth Cohen, Chaya Levin, Hadassa Daltrophe

{"title":"Optimal Route Crowd-Shipping System for Sustainable Rapid Delivery: Algorithm, Simulation, and Feasibility Evaluation","authors":"Lior Aronshtam, Benny Sand, Tammar Shrot, Ruth Cohen, Chaya Levin, Hadassa Daltrophe","doi":"10.3390/futuretransp4010001","DOIUrl":"https://doi.org/10.3390/futuretransp4010001","url":null,"abstract":"Delivery systems are ubiquitous in today’s economy. However, those systems usually operate through purpose-built vehicles, which are inefficient, expensive, and highly harmful to the environment. We propose an optimal route crowd-shipping (OR-CS) system, a delivery service based on crowd transportation. The OR-CS system utilizes service points (SPs) and occasional couriers (OCs) to transfer deliveries. Senders drop packages at SPs, while receivers collect them from different SPs. The system is based on a new algorithm that assigns to each package an optimal route. The route is chosen individually for the package and is personally tailored according to the sender’s preferences and to the predefined routes of the OCs. To assess the real-life feasibility of the system, we developed a general simulator that emulates a city environment with authentic service points specifically selected based on desired attributes. The routes of OCs and the origins and destinations of packages were generated using a random process that differed between simulations. The results indicate that the system can be implemented and utilized. In addition, it yields positive results when the number of OCs surpasses a minimum threshold, which is feasible in most cities, given existing traffic loads. By adopting OR-CS, we can expect lowered delivery costs, reduced traffic congestion, and enhanced environmental sustainability.","PeriodicalId":238233,"journal":{"name":"Future Transportation","volume":"72 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Systematic Literature Review on Health Benefits, Incentives, and Applications to Promote Walking in Urban Areas 关于促进城市地区步行的健康益处、激励措施和应用的系统性文献综述

Future Transportation Pub Date : 2023-12-06 DOI: 10.3390/futuretransp3040076

Christos Karolemeas, L. Mitropoulos, Katerina Koliou, Dionysios Tzamakos, Eirini Stavropoulou, Evi Moschou, Konstantinos Kepaptsoglou

{"title":"A Systematic Literature Review on Health Benefits, Incentives, and Applications to Promote Walking in Urban Areas","authors":"Christos Karolemeas, L. Mitropoulos, Katerina Koliou, Dionysios Tzamakos, Eirini Stavropoulou, Evi Moschou, Konstantinos Kepaptsoglou","doi":"10.3390/futuretransp3040076","DOIUrl":"https://doi.org/10.3390/futuretransp3040076","url":null,"abstract":"The transportation sector contributes significantly to global warming, as well as to urban fabric problems such as traffic congestion, traffic accidents, noise pollution, and air pollution. A shift from fossil fuels to renewable sources and from motorized to non-motorized modes is now considered essential to create sustainable communities. Walking is a sustainable transport mode and several studies have focused on factors affecting it, including travel behavior and sociodemographics. In this study, we conduct a systematic literature review to identify and record walking benefits, the financial incentives that encourage travelers to walk, and applications that support it. Financial incentives are found to have short-term effects, and their success depends on the level and structure of the incentives as well as the characteristics of the participants. In addition, non-financial incentives, such as improving infrastructure and pedestrian safety, or providing information and education about the benefits of walking, may also promote it as a main mode of transport.","PeriodicalId":238233,"journal":{"name":"Future Transportation","volume":"55 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138596289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0