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Transportation Research Part D-transport and Environment最新文献

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A tactical planning framework to integrate paratransit with formal public transport systems 将辅助交通与正规公共交通系统相结合的战术规划框架
IF 7.3 1区 工程技术
Transportation Research Part D-transport and Environment Pub Date : 2024-10-03 DOI: 10.1016/j.trd.2024.104438
Ravi Gadepalli , Prateek Bansal , Geetam Tiwari , Nomesh Bolia
{"title":"A tactical planning framework to integrate paratransit with formal public transport systems","authors":"Ravi Gadepalli ,&nbsp;Prateek Bansal ,&nbsp;Geetam Tiwari ,&nbsp;Nomesh Bolia","doi":"10.1016/j.trd.2024.104438","DOIUrl":"10.1016/j.trd.2024.104438","url":null,"abstract":"<div><div>Despite the crucial role of informal paratransit services in mobility systems, their planning and integration with formal public transport systems have received limited attention. We present a novel framework to integrate public transport and paratransit at the tactical planning level. We formulate this integration as a two-step Transit Network Frequency Setting Problem (TNFSP). The first step of TNFSP involves a headway-based network-wide multi-modal transit assignment, followed by an integrated frequency optimisation in the second step. The proposed approach is applied to the network of Visakhapatnam, a medium-sized Indian city with 9 % and 18 % share of paratransit and formal transit. After validating the base model using real-world data, we perform scenario-based analysis to derive the optimal fleet size, network configuration, and frequency of both systems to minimise externalities. Integrated planning and frequency optimization can lead to 50–60 % reduction in travel time and emissions compared to current approach of separately planned systems.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"136 ","pages":"Article 104438"},"PeriodicalIF":7.3,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142416446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Developing high-precision battery electric forklift driving cycle with variable cargo weight 开发货物重量可变的高精度电池电动叉车驱动循环系统
IF 7.3 1区 工程技术
Transportation Research Part D-transport and Environment Pub Date : 2024-10-03 DOI: 10.1016/j.trd.2024.104443
Zheming Tong, Sheng Guan
{"title":"Developing high-precision battery electric forklift driving cycle with variable cargo weight","authors":"Zheming Tong,&nbsp;Sheng Guan","doi":"10.1016/j.trd.2024.104443","DOIUrl":"10.1016/j.trd.2024.104443","url":null,"abstract":"<div><div>Driving cycles are essential for assessing vehicle energy demand, estimating driving range, and evaluating environmental impacts. Numerous driving cycles have been developed for passenger cars and buses. However, tailored driving cycles for logistics vehicles, especially forklifts, remains limited. Therefore, we introduce high-precision driving cycles for battery electric forklifts, which include profiles of velocity and cargo mass. The construction of driving cycles involves route selection, data acquisition, micro-trip segmentation, characteristic parameters selection, driving pattern categorization, transition probability matrix development, and driving cycle construction and evaluation. The methods proposed for constructing driving cycles are based on Markov Chain, Micro-trips combinations, and genetic algorithms. The constructed driving cycles are evaluated using relative error analysis and a simulation model. The results confirm that these cycles accurately reflect actual forklift operations and can be utilized to estimate their energy consumption.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"136 ","pages":"Article 104443"},"PeriodicalIF":7.3,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142416443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Automated vehicles and the urban parking paradigm: Environmental implications and Citizen preference 自动驾驶汽车与城市停车模式：环境影响和市民偏好
IF 7.3 1区 工程技术
Transportation Research Part D-transport and Environment Pub Date : 2024-10-03 DOI: 10.1016/j.trd.2024.104437
Ada Garus , Andrés Rodríguez , Andromachi Mourtzouchou , Luigi dell’Olio , Borja Alonso Oreña , Biagio Ciuffo
{"title":"Automated vehicles and the urban parking paradigm: Environmental implications and Citizen preference","authors":"Ada Garus ,&nbsp;Andrés Rodríguez ,&nbsp;Andromachi Mourtzouchou ,&nbsp;Luigi dell’Olio ,&nbsp;Borja Alonso Oreña ,&nbsp;Biagio Ciuffo","doi":"10.1016/j.trd.2024.104437","DOIUrl":"10.1016/j.trd.2024.104437","url":null,"abstract":"<div><div>This study examines parking decisions in a future populated by automated vehicles (AVs), focusing on their energy implications. Using a multinomial logit model, preferences among cruising, garage parking, sending the AV home, and on-street parking in Santander, Spain, were evaluated. Home sending emerged as the favourite (52%) for its convenience, while garage parking was chosen by 36%, valued for security and environmental benefits. Cruising was least popular (6%), deterred by environmental concerns. Integrating survey data with traffic simulations, the research uncovered that cruising, despite its low preference, accounted for 16% of energy consumption due to empty trips. Surprisingly, sending AVs home, despite being the most popular, led to significant energy use, although it maintained a good consumption ratio. Garage parking, especially when located on city outskirts, was also inefficient. The study highlights the urgent need for strategies to mitigate inefficient parking behaviours, thereby enhancing the sustainability of AV-driven mobility.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"136 ","pages":"Article 104437"},"PeriodicalIF":7.3,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142416444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Mitigating child exposure to traffic-related air pollution on the school commute: Views of parents and teachers in England 减少儿童在上下学途中受到与交通有关的空气污染的影响：英格兰家长和教师的观点
IF 7.3 1区 工程技术
Transportation Research Part D-transport and Environment Pub Date : 2024-10-02 DOI: 10.1016/j.trd.2024.104454
Louis Brown, Enda Hayes, Jo Barnes
{"title":"Mitigating child exposure to traffic-related air pollution on the school commute: Views of parents and teachers in England","authors":"Louis Brown,&nbsp;Enda Hayes,&nbsp;Jo Barnes","doi":"10.1016/j.trd.2024.104454","DOIUrl":"10.1016/j.trd.2024.104454","url":null,"abstract":"<div><div>Children are particularly vulnerable to the adverse health effects of traffic-related air pollution (TRAP) due to their developing physiologies. A survey was distributed to schools in England for completion by parents and teachers. The survey examined perceptions of TRAP on the school commute and assessed views on potential interventions for reducing exposure. 76.7% of parents and 75.8% of teachers were concerned about TRAP at their school. The most common cause for concern was school proximity to a busy road (44.2% parents and 42.5% teachers).</div><div>Active travel was the most common measure already undertaken. The biggest obstacles to reducing school TRAP were driving convenience, school proximity to busy roads, and lack of parental support. Parents and teachers considered local authorities most responsible for improving school TRAP. Active travel was a popular and desirable intervention for reducing potential child exposure, and parental education on this and related topics were also desirable.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"136 ","pages":"Article 104454"},"PeriodicalIF":7.3,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142416442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Reexamining exposure from truck emissions considering daily movement of individuals 考虑到人员的日常流动，重新审查卡车排放物的暴露情况
IF 7.3 1区 工程技术
Transportation Research Part D-transport and Environment Pub Date : 2024-10-01 DOI: 10.1016/j.trd.2024.104441
Tong Xiao , Zhengtao Qin , Yougeng Lu , Yuan Chao , Chao Yang , Quan Yuan
{"title":"Reexamining exposure from truck emissions considering daily movement of individuals","authors":"Tong Xiao ,&nbsp;Zhengtao Qin ,&nbsp;Yougeng Lu ,&nbsp;Yuan Chao ,&nbsp;Chao Yang ,&nbsp;Quan Yuan","doi":"10.1016/j.trd.2024.104441","DOIUrl":"10.1016/j.trd.2024.104441","url":null,"abstract":"<div><div>With the growing demand for urban freight transportation, trucks emit a large amount of pollutants such as particulate matters and nitrogen oxides, increasingly affecting public health. This study establishes a modelized air dispersion structure to simulate pollutant concentration distribution. By integrating multiple data sources including mobile phone signals and satellite images, we reconstruct the daily trajectories of individuals and further incorporate simulated pollution concentrations in calculating dynamic and static exposure of individuals to truck emissions. Econometric models considering spatial dependence are developed to evaluate the influencing factors and elucidate the mechanisms of pollutant exposure. Results show factors including freight demand, road network, residential and employment locations, personal commuting distance, and population age structure matter in assessing truck emission exposure. As a result, a mixture of vehicular emission standards, urban traffic control, land planning, and industrial policies is proposed to reduce truck pollutant exposure and safeguard public health.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"136 ","pages":"Article 104441"},"PeriodicalIF":7.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142356910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Evaluating eco-economic benefits of anchoring and drifting under government sulfur emission policies 评估政府硫排放政策下锚定和漂移的生态经济效益
IF 7.3 1区 工程技术
Transportation Research Part D-transport and Environment Pub Date : 2024-10-01 DOI: 10.1016/j.trd.2024.104442
Qian Zhang , Shuaian Wang , Lu Zhen
{"title":"Evaluating eco-economic benefits of anchoring and drifting under government sulfur emission policies","authors":"Qian Zhang ,&nbsp;Shuaian Wang ,&nbsp;Lu Zhen","doi":"10.1016/j.trd.2024.104442","DOIUrl":"10.1016/j.trd.2024.104442","url":null,"abstract":"<div><div>Driven by global sulphur strategy, reducing sulfur emissions from the global shipping industry is of great significance for achieving sustainable development goals related to addressing climate change. This study explores the impact of government sulfur emission policies on the choice of mooring modes, include anchoring and drifting, for shipping lines. In this study, a bi-level programming model is constructed and linearized to minimize the total vessel emissions in emission control areas during the planning horizon and the total cost of each type of vessel. The leader of this model is the department that issues regulations and decides on the anchorage to regulate whether marine gas oil must be used. The followers are the shipping lines that execute transportation tasks and choose whether a vessel will anchor or drift. In addition, many numerical experiments and sensitivity analysis are conducted, and data and theoretical support for relevant decision-making are provided.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"136 ","pages":"Article 104442"},"PeriodicalIF":7.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142416441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Transmuting battery-powered buses: State-of-charge scheduling cooperative with battery and charger capacity optimization 转换电池驱动的公共汽车：充电状态调度与电池和充电器容量优化的合作
IF 7.3 1区 工程技术
Transportation Research Part D-transport and Environment Pub Date : 2024-10-01 DOI: 10.1016/j.trd.2024.104436
Shahriar Kamalinia , Mohamad Amin Gharibi , Mahdi Faraji , Hamed Nafisi , Marco Merlo
{"title":"Transmuting battery-powered buses: State-of-charge scheduling cooperative with battery and charger capacity optimization","authors":"Shahriar Kamalinia ,&nbsp;Mohamad Amin Gharibi ,&nbsp;Mahdi Faraji ,&nbsp;Hamed Nafisi ,&nbsp;Marco Merlo","doi":"10.1016/j.trd.2024.104436","DOIUrl":"10.1016/j.trd.2024.104436","url":null,"abstract":"<div><div>Transitioning toward non-polluted public transportation systems is crucial for sustainability. Although declining battery costs have led to a greater utilization of battery-powered electric buses (BEBs), challenges persist owing to the high cost of chargers and battery energy limitations, which require efficient solutions. Therefore, this study proposed a novel offline state-of-charge scheduling method that focuses on optimizing battery and charger capacities. To make this study applicable to any city, a precise bus dynamic model was developed, and all evaluations were conducted using data commonly available in the cities. To validate the optimization, a sensitivity analysis was conducted to represent the effects of the factors involved. Moreover, to investigate the differences between the utility service and depot owner perspectives, the city’s and synthetic electricity tariffs were employed for scheduling, which differ in covering the city’s daily load profile valleys. This measure is crucial when the BEB demand is not considered in generation.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"136 ","pages":"Article 104436"},"PeriodicalIF":7.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142416440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Nonlinear associations between design, land-use features, and active travel 设计、土地使用特征与积极出行之间的非线性关系
IF 7.3 1区 工程技术
Transportation Research Part D-transport and Environment Pub Date : 2024-09-29 DOI: 10.1016/j.trd.2024.104440
Zhehao Zhang , Shuo Yang , Leyu Zhou , Haiming Wang
{"title":"Nonlinear associations between design, land-use features, and active travel","authors":"Zhehao Zhang ,&nbsp;Shuo Yang ,&nbsp;Leyu Zhou ,&nbsp;Haiming Wang","doi":"10.1016/j.trd.2024.104440","DOIUrl":"10.1016/j.trd.2024.104440","url":null,"abstract":"<div><div>The nonlinearity correlations of design and land-use features with active travel (AT) are yet to be systematically identified by recent studies. This study aims to apply the extreme gradient boosting approach to examine the nonlinear relationships between design and land-use built environment (BE) features and AT. Based on a comprehensive travel survey in Wuhan’s main agglomeration with various land use and urban functions, we collected 2073 valid samples to obtain residents’ daily travel patterns and socio-demographic attributes. We found that all BE features have nonlinear relationships with AT. The collective relative importance of design features has greater predictive power for AT than land-use features. The most effective range of high contributions of street connectivity and street greenery was 21–34/km<sup>2</sup> and 0.22–0.34, respectively. Planners should improve the street-level features and build dense, diverse land use and high street connectivity urban environments to promote AT activity.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"136 ","pages":"Article 104440"},"PeriodicalIF":7.3,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142356909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Recycling red mud for low-carbon pavement: Performance evaluation and environment risk assessment 回收赤泥用于低碳路面：性能评价和环境风险评估
IF 7.3 1区 工程技术
Transportation Research Part D-transport and Environment Pub Date : 2024-09-27 DOI: 10.1016/j.trd.2024.104428
Qianwen Tan , Jiaqi Shangguan , Qilin Yang , Dawei Wang , Ning Xie , Yangpeng Zhang
{"title":"Recycling red mud for low-carbon pavement: Performance evaluation and environment risk assessment","authors":"Qianwen Tan ,&nbsp;Jiaqi Shangguan ,&nbsp;Qilin Yang ,&nbsp;Dawei Wang ,&nbsp;Ning Xie ,&nbsp;Yangpeng Zhang","doi":"10.1016/j.trd.2024.104428","DOIUrl":"10.1016/j.trd.2024.104428","url":null,"abstract":"<div><div>This study investigates the use of red mud as a substitute in grouting materials to reduce energy consumption and emissions in semi-flexible pavements (SFP). The pavement performance of SFPs constructed with various alkali-activated grouting materials was experimentally validated and investigated. Life cycle assessment (LCA) highlighted that red mud significantly lowers energy use and environmental impact of SFP. Ecotoxicological assessments confirmed that red mud is safe for use in pavement applications, posing no significant hazards even under traffic and rainfall conditions. Surface treatments for low-carbon SFP were recommended to enhance skid resistance and ecological safety. Microscopic analysis revealed that replacing cement with red mud improves the bonding interface in SFPs. This research validates the potential of recycling solid waste in SFPs, contributing to the development of low-carbon construction materials while addressing environmental impact in pavement engineering.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"136 ","pages":"Article 104428"},"PeriodicalIF":7.3,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Port energy demand model for implementing onshore power supply and alternative fuels 实施陆上供电和替代燃料的港口能源需求模型
IF 7.3 1区 工程技术
Transportation Research Part D-transport and Environment Pub Date : 2024-09-26 DOI: 10.1016/j.trd.2024.104432
Dogancan Uzun , Dogancan Okumus , Onder Canbulat , Sefer Anil Gunbeyaz , Stavros Karamperidis , Dominic Hudson , Osman Turan , Richard Allan
{"title":"Port energy demand model for implementing onshore power supply and alternative fuels","authors":"Dogancan Uzun ,&nbsp;Dogancan Okumus ,&nbsp;Onder Canbulat ,&nbsp;Sefer Anil Gunbeyaz ,&nbsp;Stavros Karamperidis ,&nbsp;Dominic Hudson ,&nbsp;Osman Turan ,&nbsp;Richard Allan","doi":"10.1016/j.trd.2024.104432","DOIUrl":"10.1016/j.trd.2024.104432","url":null,"abstract":"<div><div>A feasibility study was conducted on the energy and peak power demand of ships for utilising the Onshore Power Supply (OPS) and transitioning to using alternative fuels. The port of Plymouth was adopted as a case study. Four types of ships, Ro-Pax, Tanker, Bulk Carrier and General Cargo, were in operation at the port. A representative vessel was selected for each ship type to simulate the average ship’s cargo capacity and engine power. One year of real port operations, including material handling equipment and trucks, were simulated. The peak power and annual energy demand for the OPS system were calculated to be 5.95 MW and 7.1 GWh, respectively. Implementing an OPS system saved 83.6 % of total CO<sub>2</sub>. Fuel volumes were calculated for conventional and alternative fuels, the volume of liquid hydrogen was around 3.5 times that of the conventional fuel, whereas methanol required less mass and volume than ammonia and hydrogen.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"136 ","pages":"Article 104432"},"PeriodicalIF":7.3,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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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