Pub Date : 2023-12-01DOI: 10.1016/j.jtte.2023.07.008
Shaohui Li , Peiwen Hao
A state-of-the-art review was delivered in the manuscript to analyze the current situations and the advantages/disadvantages of resilient deformation related issues to the unbound granular material (UGM), including testing methods, influencing factors and constitutive models, through which the bottlenecks in UGM resilient deformation characterizations were located and new theories and future research recommendations were proposed. Compared with other testing methods, the hollow cylinder test and true triaxial test are the only two to determine the anisotropic moduli of the UGM. Although significant advantages are observed in more advanced test apparatus such as true triaxial test, further improvements should be made, such as more advanced process identification control algorithm, to more conveniently control the nine independent hydraulic system and accurately measure UGM anisotropic properties. Confusions and conflicts in understanding the influencing factors to UGM resilient modulus were located, such as the stress history, the residual stress, the dry density, the gradation/fine content and the freeze-thaw cycle, based on which future research could be conducted. Through reviewing evolutions of the UGM constitutive models and comparing their representativeness and complexity comprehensively, major drawbacks were discovered and a new theory was proposed afterward to modify the UGM constitutive model, although further validations are still needed.
{"title":"Current situations, advantages/disadvantages and future developments of resilient deformation characterizations of unbound granular material: A state-of-the-art review","authors":"Shaohui Li , Peiwen Hao","doi":"10.1016/j.jtte.2023.07.008","DOIUrl":"10.1016/j.jtte.2023.07.008","url":null,"abstract":"<div><div>A state-of-the-art review was delivered in the manuscript to analyze the current situations and the advantages/disadvantages of resilient deformation related issues to the unbound granular material (UGM), including testing methods, influencing factors and constitutive models, through which the bottlenecks in UGM resilient deformation characterizations were located and new theories and future research recommendations were proposed. Compared with other testing methods, the hollow cylinder test and true triaxial test are the only two to determine the anisotropic moduli of the UGM. Although significant advantages are observed in more advanced test apparatus such as true triaxial test, further improvements should be made, such as more advanced process identification control algorithm, to more conveniently control the nine independent hydraulic system and accurately measure UGM anisotropic properties. Confusions and conflicts in understanding the influencing factors to UGM resilient modulus were located, such as the stress history, the residual stress, the dry density, the gradation/fine content and the freeze-thaw cycle, based on which future research could be conducted. Through reviewing evolutions of the UGM constitutive models and comparing their representativeness and complexity comprehensively, major drawbacks were discovered and a new theory was proposed afterward to modify the UGM constitutive model, although further validations are still needed.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"10 6","pages":"Pages 964-1000"},"PeriodicalIF":7.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143205658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.jtte.2023.04.008
Guozhu Cheng, Xuanling Liu, Yulong Pei
The prioritization of public transit as an essential means of promoting sustainable urban development has a significant role in improving the quality of public transportation services, reducing traffic congestion, and enhancing air quality. To improve the implementation of public transit prioritization policies, this study conducted a comprehensive review of relevant literature on public transit prioritization from two major citation databases (Web of Science and China National Knowledge Infrastructure) from 2003 to 2021. Utilizing the visualization analysis software CiteSpace, this study analyzed knowledge visualization from five aspects: research sources, research institutions, knowledge foundation, knowledge frontier, and research hotspots, and summarized the research history and implementation effectiveness of public transit prioritization policies. The study concludes that existing research has some deficiencies in terms of urban diversity, comprehensive evaluation system, holistic perspective, interdisciplinary collaboration, and consideration of economic and environmental impacts. Future research should focus on development directions such as intelligence, sustainability, interdisciplinary collaboration, and integration of multi-modal transportation. The findings of this study can provide valuable references for the implementation of public transportation prioritization policies and future research.
{"title":"A review of research on public transport priority based on CiteSpace","authors":"Guozhu Cheng, Xuanling Liu, Yulong Pei","doi":"10.1016/j.jtte.2023.04.008","DOIUrl":"10.1016/j.jtte.2023.04.008","url":null,"abstract":"<div><div>The prioritization of public transit as an essential means of promoting sustainable urban development has a significant role in improving the quality of public transportation services, reducing traffic congestion, and enhancing air quality. To improve the implementation of public transit prioritization policies, this study conducted a comprehensive review of relevant literature on public transit prioritization from two major citation databases (Web of Science and China National Knowledge Infrastructure) from 2003 to 2021. Utilizing the visualization analysis software CiteSpace, this study analyzed knowledge visualization from five aspects: research sources, research institutions, knowledge foundation, knowledge frontier, and research hotspots, and summarized the research history and implementation effectiveness of public transit prioritization policies. The study concludes that existing research has some deficiencies in terms of urban diversity, comprehensive evaluation system, holistic perspective, interdisciplinary collaboration, and consideration of economic and environmental impacts. Future research should focus on development directions such as intelligence, sustainability, interdisciplinary collaboration, and integration of multi-modal transportation. The findings of this study can provide valuable references for the implementation of public transportation prioritization policies and future research.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"10 6","pages":"Pages 1118-1147"},"PeriodicalIF":7.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143266102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.jtte.2023.05.005
Elena Gaudenzi , Fabrizio Cardone , Xiaohu Lu , Francesco Canestrari
The use of alternative renewable sources to totally or partially replace bitumen is one of the most current challenges in the road pavement sector. The growing energy cost and environmental concerns lead to the necessity to find alternative solutions, by supporting at the same time sustainability and circular economy principles. Within this framework, this paper presents the application of a powder lignin, a natural bio-polymer deriving from by-products of wood pulp and paper industry, to replace part of bitumen. The bituminous blend consisting in 70% of bitumen and 30% of powder lignin (by weight) was made in laboratory through the use of a high shear stirring mixer, and a reference plain bitumen characterized by a similar consistency (i.e., same penetration grade) was used as comparison. Then, an extensive investigation on chemical and rheological properties of the bio-binder is presented. Fourier transform infrared spectroscopy (FTIR), saturates, aromatics, resins and asphaltenes (SARA), bending beam rheometer (BBR), frequency sweep tests and multiple stress creep recovery tests (MSCR) with a dynamic shear rheometer (DSR) were performed. Moreover, unaged, short- and long-term aging conditions were considered. Results indicated that powder lignin dominates the rheological behavior of the bio-binder and, from chemical analysis, it seems that it partially acts as a filler and partially as a binder. This would result in improved performances at both low and high temperatures, leading to a wider temperature range of performance grade (PG). Moreover, despite a stiffening effect is recognized, lignin also offers an antioxidant potentiality, reducing the aging susceptibility of the investigated bio-binder.
{"title":"Chemical and rheological analysis of unaged and aged bio-extended binders containing lignin","authors":"Elena Gaudenzi , Fabrizio Cardone , Xiaohu Lu , Francesco Canestrari","doi":"10.1016/j.jtte.2023.05.005","DOIUrl":"10.1016/j.jtte.2023.05.005","url":null,"abstract":"<div><div>The use of alternative renewable sources to totally or partially replace bitumen is one of the most current challenges in the road pavement sector. The growing energy cost and environmental concerns lead to the necessity to find alternative solutions, by supporting at the same time sustainability and circular economy principles. Within this framework, this paper presents the application of a powder lignin, a natural bio-polymer deriving from by-products of wood pulp and paper industry, to replace part of bitumen. The bituminous blend consisting in 70% of bitumen and 30% of powder lignin (by weight) was made in laboratory through the use of a high shear stirring mixer, and a reference plain bitumen characterized by a similar consistency (i.e., same penetration grade) was used as comparison. Then, an extensive investigation on chemical and rheological properties of the bio-binder is presented. Fourier transform infrared spectroscopy (FTIR), saturates, aromatics, resins and asphaltenes (SARA), bending beam rheometer (BBR), frequency sweep tests and multiple stress creep recovery tests (MSCR) with a dynamic shear rheometer (DSR) were performed. Moreover, unaged, short- and long-term aging conditions were considered. Results indicated that powder lignin dominates the rheological behavior of the bio-binder and, from chemical analysis, it seems that it partially acts as a filler and partially as a binder. This would result in improved performances at both low and high temperatures, leading to a wider temperature range of performance grade (PG). Moreover, despite a stiffening effect is recognized, lignin also offers an antioxidant potentiality, reducing the aging susceptibility of the investigated bio-binder.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"10 6","pages":"Pages 947-963"},"PeriodicalIF":7.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143205657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.jtte.2023.07.007
Armira Kontaxi, Dimosthenis-Marios Tzoutzoulis, Apostolos Ziakopoulos, George Yannis
The present research aimed to identify critical factors that affect speeding behavior. For that purpose, high-resolution smartphone data collected from a naturalistic driving experiment of 88 drivers were utilized, augmented with data from self-reported questionnaires. Using risk exposure and driving behavior indicators calculated from smartphone sensor data, as well as demographic characteristics and self-reported driving performance, statistical analysis was carried out for modelling the percentage of driving time over the speed limit, namely by means of generalized linear mixed-effects models. More precisely, an overall model was developed for all road environments, and additional separate models were developed for driving on urban and rural roads. The results from the interpretation of the estimated parameters of the models can be summarized as follows: the parameters of trip distance and mobile phone use while driving have been determined as statistically significant and positively correlated with the percentage of speeding time during a driver's trip. In the same context, male drivers and drivers in the age group of 18–34 also increase the percentages of speeding instances while driving. Regarding driving behavior as stated on the questionnaire, it seems that low frequencies of self-declared speeding (never or rarely) are statistically significant and negatively correlated with the percentage of speeding time. It is expected that this research can provide considerable gains to society, since the stakeholders including policy makers and industry could rely on the results and recommendations regarding risk factors that appear to be critical for safe driving.
{"title":"Exploring speeding behavior using naturalistic car driving data from smartphones","authors":"Armira Kontaxi, Dimosthenis-Marios Tzoutzoulis, Apostolos Ziakopoulos, George Yannis","doi":"10.1016/j.jtte.2023.07.007","DOIUrl":"10.1016/j.jtte.2023.07.007","url":null,"abstract":"<div><div>The present research aimed to identify critical factors that affect speeding behavior. For that purpose, high-resolution smartphone data collected from a naturalistic driving experiment of 88 drivers were utilized, augmented with data from self-reported questionnaires. Using risk exposure and driving behavior indicators calculated from smartphone sensor data, as well as demographic characteristics and self-reported driving performance, statistical analysis was carried out for modelling the percentage of driving time over the speed limit, namely by means of generalized linear mixed-effects models. More precisely, an overall model was developed for all road environments, and additional separate models were developed for driving on urban and rural roads. The results from the interpretation of the estimated parameters of the models can be summarized as follows: the parameters of trip distance and mobile phone use while driving have been determined as statistically significant and positively correlated with the percentage of speeding time during a driver's trip. In the same context, male drivers and drivers in the age group of 18–34 also increase the percentages of speeding instances while driving. Regarding driving behavior as stated on the questionnaire, it seems that low frequencies of self-declared speeding (never or rarely) are statistically significant and negatively correlated with the percentage of speeding time. It is expected that this research can provide considerable gains to society, since the stakeholders including policy makers and industry could rely on the results and recommendations regarding risk factors that appear to be critical for safe driving.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"10 6","pages":"Pages 1162-1173"},"PeriodicalIF":7.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143205761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.jtte.2023.07.009
Xinying Zhang , Kelly Pitera , Yuanqing Wang
Growing private vehicle use and a limited supply of parking resources have increased competition for parking spaces. Ineffective searching for parking spaces is a significant barrier to smooth traffic flow. Smart technology-generated parking reservations are regarded as an excellent way to increase parking efficiency and lessen traffic. Although there is increased attention on smart parking research and parking reservation optimization, a scoping review is currently lacking. Therefore, the purpose of this paper is to provide a comprehensive review of the research literature related to parking reservations. Out of the original 438 publications identified in this search, 99 were eventually chosen for analysis. The review categorized parking reservations into four research topics: inventory control, allocation decisions, pricing strategies, and performance evaluation. The elements considered in these research themes, modeling techniques, and evaluation criteria are explored in detail. In addition, the challenges and further enhancements of parking reservation optimization are discussed. It is believed that the findings from this study will be beneficial in further research on parking reservations.
{"title":"Parking reservation techniques: A review of research topics, considerations, and optimization methods","authors":"Xinying Zhang , Kelly Pitera , Yuanqing Wang","doi":"10.1016/j.jtte.2023.07.009","DOIUrl":"10.1016/j.jtte.2023.07.009","url":null,"abstract":"<div><div>Growing private vehicle use and a limited supply of parking resources have increased competition for parking spaces. Ineffective searching for parking spaces is a significant barrier to smooth traffic flow. Smart technology-generated parking reservations are regarded as an excellent way to increase parking efficiency and lessen traffic. Although there is increased attention on smart parking research and parking reservation optimization, a scoping review is currently lacking. Therefore, the purpose of this paper is to provide a comprehensive review of the research literature related to parking reservations. Out of the original 438 publications identified in this search, 99 were eventually chosen for analysis. The review categorized parking reservations into four research topics: inventory control, allocation decisions, pricing strategies, and performance evaluation. The elements considered in these research themes, modeling techniques, and evaluation criteria are explored in detail. In addition, the challenges and further enhancements of parking reservation optimization are discussed. It is believed that the findings from this study will be beneficial in further research on parking reservations.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"10 6","pages":"Pages 1099-1117"},"PeriodicalIF":7.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143205988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.jtte.2022.09.002
Limin Geng , Hongliang Xiao , Yuxuan Cui , Nan Gao , Qi Li , Hao Chen , Yuantao Xie
Energy shortage and environmental pollution are becoming more serious, biodiesel is regarded as the most promising alternative fuel for diesel engines due to its environmentally friendly and renewable characteristics. In this study, the biodiesel-ethanol blends were used in a diesel engine, and the purpose of the study was to simultaneously control the NOx and soot emissions of the diesel engine by adjusting the injection strategy and EGR rate. A turbocharged, six-cylinder, common rail direct injection (CRDI) engine model was established using GT-Power. The effects of the main-post injection strategy and post injection coupled with exhaust gas recirculation (EGR) on combustion and emission characteristics were investigated at a maximum torque speed and a medium load. The results show that when the main-post injection strategy is employed, the combustion duration of the main injection is shortened with an increase in the main-post injection interval (MPI). When the MPI increased to more than 18 °CA, the heat release of post injection could be observed clearly from the curve of the heat release rate, NOx emissions decreased by 5.70% and 7.12%, respectively, and soot emissions decreased by 25.56% and 30.20%, respectively. Moreover, with the increasing post injection quantity, the combustion duration of the main injection shortened, and the peak heat release rate (PHRR) of the post injection increased. When the fuel quantity for the post injection increased from 2 to 6 mg, NOx emissions decreased from 2.33% to 9.80%, and soot emissions decreased from 16.10% to 34.97%. The effect of post injection quantity on emissions was more significant than that of the MPI. In addition, with increasing EGR rate, the ignition delay is prolonged, the peak cylinder pressure, PHRR, peak combustion temperature and NOx emissions decrease, whereas soot emissions increase gradually. Main-post injection can improve the NOx-soot trade-off, the optimal EGR rate is 22.86% under a post injection quantity of 4 mg and a MPI of 22 °CA.
{"title":"Numerical study of effect of post injection coupled with EGR on combustion and emission performances of CRDI engine fueled with biodiesel-ethanol blends","authors":"Limin Geng , Hongliang Xiao , Yuxuan Cui , Nan Gao , Qi Li , Hao Chen , Yuantao Xie","doi":"10.1016/j.jtte.2022.09.002","DOIUrl":"10.1016/j.jtte.2022.09.002","url":null,"abstract":"<div><div>Energy shortage and environmental pollution are becoming more serious, biodiesel is regarded as the most promising alternative fuel for diesel engines due to its environmentally friendly and renewable characteristics. In this study, the biodiesel-ethanol blends were used in a diesel engine, and the purpose of the study was to simultaneously control the NO<sub><em>x</em></sub> and soot emissions of the diesel engine by adjusting the injection strategy and EGR rate. A turbocharged, six-cylinder, common rail direct injection (CRDI) engine model was established using GT-Power. The effects of the main-post injection strategy and post injection coupled with exhaust gas recirculation (EGR) on combustion and emission characteristics were investigated at a maximum torque speed and a medium load. The results show that when the main-post injection strategy is employed, the combustion duration of the main injection is shortened with an increase in the main-post injection interval (MPI). When the MPI increased to more than 18 °CA, the heat release of post injection could be observed clearly from the curve of the heat release rate, NO<sub><em>x</em></sub> emissions decreased by 5.70% and 7.12%, respectively, and soot emissions decreased by 25.56% and 30.20%, respectively. Moreover, with the increasing post injection quantity, the combustion duration of the main injection shortened, and the peak heat release rate (PHRR) of the post injection increased. When the fuel quantity for the post injection increased from 2 to 6 mg, NO<sub><em>x</em></sub> emissions decreased from 2.33% to 9.80%, and soot emissions decreased from 16.10% to 34.97%. The effect of post injection quantity on emissions was more significant than that of the MPI. In addition, with increasing EGR rate, the ignition delay is prolonged, the peak cylinder pressure, PHRR, peak combustion temperature and NO<sub><em>x</em></sub> emissions decrease, whereas soot emissions increase gradually. Main-post injection can improve the NO<sub><em>x</em></sub>-soot trade-off, the optimal EGR rate is 22.86% under a post injection quantity of 4 mg and a MPI of 22 °CA.</div></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"10 6","pages":"Pages 1174-1186"},"PeriodicalIF":7.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143205752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-01DOI: 10.1016/j.jtte.2023.09.001
Laijun Wang, Qi Ding, Dongxuan Wei
The paired approach is a kind of efficiency approach to closely spaced parallel runways (CSPRs), and the point merge system has the powerful interval management function, which is effective to realize the converge of traffic flows from different approach directions. In order to improve the operation efficiency of the airport terminal area, a model of paired approach sequencing based on point merge is proposed to investigate the problem of increasing the operation capacity of the closely spaced parallel runways. Taking the minimum average flight delay time as the objective, the flight distance on sequencing legs, wake turbulence separation and paired approach safety separation as constraints, the genetic algorithm is used to optimize the paired approach sequencing of arrival flights. Taking the closely parallel runways of Shanghai Hongqiao International Airport run south as an example, the point merge program is designed and the effect of model was analyzed. The results show that after optimization, the average delay time and average landing time are reduced by 40.6% and 51.8% respectively, the capacity of the closely spaced parallel runways are 1.1 times higher than the actual, the flight uptime rate can reach 100%. It is concluded that the proposed model is feasible, which can effectively reduce delay times and alleviate congestion in terminal areas.
{"title":"Based on point merge for paired approach sequencing on closely spaced parallel runways","authors":"Laijun Wang, Qi Ding, Dongxuan Wei","doi":"10.1016/j.jtte.2023.09.001","DOIUrl":"https://doi.org/10.1016/j.jtte.2023.09.001","url":null,"abstract":"<div><p>The paired approach is a kind of efficiency approach to closely spaced parallel runways (CSPRs), and the point merge system has the powerful interval management function, which is effective to realize the converge of traffic flows from different approach directions. In order to improve the operation efficiency of the airport terminal area, a model of paired approach sequencing based on point merge is proposed to investigate the problem of increasing the operation capacity of the closely spaced parallel runways. Taking the minimum average flight delay time as the objective, the flight distance on sequencing legs, wake turbulence separation and paired approach safety separation as constraints, the genetic algorithm is used to optimize the paired approach sequencing of arrival flights. Taking the closely parallel runways of Shanghai Hongqiao International Airport run south as an example, the point merge program is designed and the effect of model was analyzed. The results show that after optimization, the average delay time and average landing time are reduced by 40.6% and 51.8% respectively, the capacity of the closely spaced parallel runways are 1.1 times higher than the actual, the flight uptime rate can reach 100%. It is concluded that the proposed model is feasible, which can effectively reduce delay times and alleviate congestion in terminal areas.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"10 5","pages":"Pages 934-946"},"PeriodicalIF":7.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71770356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-01DOI: 10.1016/j.jtte.2023.09.002
Jianqiang Fan , Xiaosha Meng , Jiaxin Tian , Conghui Xing , Chao Wang , Jacob Wood
The transportation sector is one of the major sources of global carbon emissions. In this study, a bibliometric analysis was conducted using CiteSpace and VOSviewer for articles published in the field of transportation carbon emissions (TCEs) between 1997 and 2023. From this analysis, our research shows that: (a) the number of articles on TCEs has grown rapidly since 2010; (b) China, the United States, and the United Kingdom are important research forces, with the Helmholtz Association of German having the highest number of publications; (c) Transportation Research Part D: Transport and Environment is the most cited journal in this field; (d) the current research hotspots mainly focus on theory and methodological approaches, low-carbon travel, green supply chain management, and carbon emission drivers; (e) while, scenario analysis, data envelopment analysis, and vehicle routing problem are popular keywords that have been used in the research field of TCEs in recent years. Finally, using current research trends, our study also proposes a series of future research endeavors for the field of TCEs.
{"title":"A review of transportation carbon emissions research using bibliometric analyses","authors":"Jianqiang Fan , Xiaosha Meng , Jiaxin Tian , Conghui Xing , Chao Wang , Jacob Wood","doi":"10.1016/j.jtte.2023.09.002","DOIUrl":"https://doi.org/10.1016/j.jtte.2023.09.002","url":null,"abstract":"<div><p>The transportation sector is one of the major sources of global carbon emissions. In this study, a bibliometric analysis was conducted using CiteSpace and VOSviewer for articles published in the field of transportation carbon emissions (TCEs) between 1997 and 2023. From this analysis, our research shows that: (a) the number of articles on TCEs has grown rapidly since 2010; (b) China, the United States, and the United Kingdom are important research forces, with the Helmholtz Association of German having the highest number of publications; (c) Transportation Research Part D: Transport and Environment is the most cited journal in this field; (d) the current research hotspots mainly focus on theory and methodological approaches, low-carbon travel, green supply chain management, and carbon emission drivers; (e) while, scenario analysis, data envelopment analysis, and vehicle routing problem are popular keywords that have been used in the research field of TCEs in recent years. Finally, using current research trends, our study also proposes a series of future research endeavors for the field of TCEs.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"10 5","pages":"Pages 878-899"},"PeriodicalIF":7.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71770357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-01DOI: 10.1016/j.jtte.2023.05.004
Jingyu Li , Weihua Zhang , Zhongxiang Feng , Lulu Liu , Haoxue Guan
With the continuous development of information technology, the information environment while driving is constantly being enriched, and driver information processing and application are also dynamically evolving. Analysing information processing and application can better provide information services and is particularly important for traffic safety. Based on VOSviewer bibliometric software, this paper explores the research hotspots and future development trends of the driver information processing and application fields using the Web of Science (WoS) core collection as the data source. The results show that the field has a long history and has grown steadily in recent years. The United States, China and Germany are the top three countries in terms of the number of published articles. “Situational awareness and visual load”, “route selection under variable information signs”, “en-route information and behaviour” and “new information technology attitudes” are important knowledge bases for driver information processing and application. En-route information sources, human-computer interaction, and autonomous vehicle information are the research trends of the driver information processing and application field. The results of this research can help people comprehensively and systematically understand the current situation of driver information processing and application research, provide directions for future driver information processing and application research, and promote the engineering application of such research.
随着信息技术的不断发展，驾驶过程中的信息环境不断丰富，驾驶员信息处理和应用也在动态演进。分析信息处理和应用可以更好地提供信息服务，对交通安全尤为重要。基于VOSviewer文献计量软件，以Web of Science（WoS）核心集合为数据源，探讨了驾驶员信息处理和应用领域的研究热点和未来发展趋势。研究结果表明，该领域历史悠久，近年来稳步发展。美国、中国和德国是发表文章数量排名前三的国家。“情景意识和视觉负荷”、“可变信息标志下的路线选择”、“途中信息和行为”以及“新信息技术态度”是驾驶员信息处理和应用的重要知识库。途中信息源、人机交互、自动驾驶汽车信息是驾驶员信息处理和应用领域的研究趋势。该研究的结果可以帮助人们全面、系统地了解驾驶员信息处理和应用研究的现状，为未来的驾驶员信息处理与应用研究提供方向，促进此类研究的工程应用。
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Pub Date : 2023-10-01DOI: 10.1016/j.jtte.2023.04.007
Lei Han , Zhigang Du , Haoran Zheng , Fuqiang Xu , Jialin Mei
In order to fully understand the research progress of human factors and traffic safety in curve driving, from the perspective of driver-vehicle-road-environment dynamic traffic system, this paper explored the current research status and development trend of human factors of curve driving, and displayed the development process and structural relationship of human factors research of curve driving by using scientific knowledge map. Through the core collection database of Web of Science, 1408 English literatures related to human factors research of curve driving published from 2012 to 2022 (as of October 1, 2022) were obtained, and the literatures in this field were sorted and analyzed based on the VOSviewer visualization software. The results show that China, Tongji University and Accident Analysis and Prevention are the country, institution and journal with the largest contribution rate in the field of human factors research on curve driving. Co-citation analysis shows that the research contents in this field are divided into 5 clusters: driver's visual characteristics, risk of collision, vehicle dynamics characteristics, the influence of traffic engineering facilities on driving behavior, selection of driving speed. The co-occurrence analysis of keywords shows that the topics of curve geometry design and vehicle dynamics, driving behavior and risk, driving speed and safety, behavior prediction and intervention measures are the current research hotspots in the research field. It is found that the development trend of traffic safety improvement in curves is to construct a continuous, consistent, multi-level visual reference frame conforming to driving expectation through visual guiding technology, and summarizes the technical concept of linear visual guidance. This study can provide a reference for the study of human factors of curve driving.
为了全面了解曲线驾驶中人因与交通安全的研究进展，本文从驾驶员-车辆-道路-环境动态交通系统的角度，探讨了曲线驾驶人因的研究现状和发展趋势，并运用科学知识图谱展示了曲线驾驶人因研究的发展过程和结构关系。通过Web of Science的核心收藏数据库，获得了2012年至2022年（截至2022年10月1日）发表的1408篇与曲线驱动人为因素研究相关的英文文献，并基于VOSviewer可视化软件对该领域的文献进行了排序和分析。结果表明，我国、同济大学和《事故分析与预防》是曲线驾驶人因研究领域贡献率最高的国家、机构和期刊。共引分析表明，该领域的研究内容分为5个集群：驾驶员的视觉特征、碰撞风险、车辆动力学特征、交通工程设施对驾驶行为的影响、驾驶速度的选择。关键词共现分析表明，曲线几何设计与车辆动力学、驾驶行为与风险、驾驶速度与安全、行为预测与干预措施是当前研究领域的热点。研究发现，弯道交通安全改善的发展趋势是通过视觉引导技术构建一个符合驾驶期望的连续、一致、多层次的视觉参考框架，并总结出线性视觉引导的技术概念。本研究可为弯道驾驶的人为因素研究提供参考。
{"title":"Reviews and prospects of human factors research on curve driving","authors":"Lei Han , Zhigang Du , Haoran Zheng , Fuqiang Xu , Jialin Mei","doi":"10.1016/j.jtte.2023.04.007","DOIUrl":"https://doi.org/10.1016/j.jtte.2023.04.007","url":null,"abstract":"<div><p>In order to fully understand the research progress of human factors and traffic safety in curve driving, from the perspective of driver-vehicle-road-environment dynamic traffic system, this paper explored the current research status and development trend of human factors of curve driving, and displayed the development process and structural relationship of human factors research of curve driving by using scientific knowledge map. Through the core collection database of Web of Science, 1408 English literatures related to human factors research of curve driving published from 2012 to 2022 (as of October 1, 2022) were obtained, and the literatures in this field were sorted and analyzed based on the VOSviewer visualization software. The results show that China, Tongji University and Accident Analysis and Prevention are the country, institution and journal with the largest contribution rate in the field of human factors research on curve driving. Co-citation analysis shows that the research contents in this field are divided into 5 clusters: driver's visual characteristics, risk of collision, vehicle dynamics characteristics, the influence of traffic engineering facilities on driving behavior, selection of driving speed. The co-occurrence analysis of keywords shows that the topics of curve geometry design and vehicle dynamics, driving behavior and risk, driving speed and safety, behavior prediction and intervention measures are the current research hotspots in the research field. It is found that the development trend of traffic safety improvement in curves is to construct a continuous, consistent, multi-level visual reference frame conforming to driving expectation through visual guiding technology, and summarizes the technical concept of linear visual guidance. This study can provide a reference for the study of human factors of curve driving.</p></div>","PeriodicalId":47239,"journal":{"name":"Journal of Traffic and Transportation Engineering-English Edition","volume":"10 5","pages":"Pages 808-834"},"PeriodicalIF":7.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71770353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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