In order to reduce the risks caused by congestion to scenic spot management and tourist safety, a dynamic Bayesian network model based on K-means++ clustering is proposed to realize the prediction of tourist transfer volume between scenic spots. Firstly, the K-means++ method is used to cluster the tourist transfer volume between scenic spots, we select the best number of clustering by the elbow rule, and the grade interval is determined by clustering results. Secondly, we consider the passenger transfer volume and tourist flow as the nodes of the dynamic Bayesian network, which can estimate the probability of tourist transfer from the upstream scenic spots to the target scenic spot, and the tourist volume of the target scenic spot is predicted. Finally, the confusion matrix is used to verify the validity of the proposed model. The case study shows: 1.) The prediction accuracy of the model can reach about 96%, which indicates that the model is suitable for tourist flow prediction. 2.) Compared to ARIMA, SVR, K-means + BN, and K-means + DBN, the proposed model has better prediction accuracy. 3.) The Bayesian network model outperforms deep learning models in interpretability.
{"title":"Prediction model of passenger transfer volume between scenic spots based on clustering and dynamic Bayesian network","authors":"Qiuxia Sun, Guoxiang Chu, Qing Li, Xiuyan Jia","doi":"10.1117/12.2652773","DOIUrl":"https://doi.org/10.1117/12.2652773","url":null,"abstract":"In order to reduce the risks caused by congestion to scenic spot management and tourist safety, a dynamic Bayesian network model based on K-means++ clustering is proposed to realize the prediction of tourist transfer volume between scenic spots. Firstly, the K-means++ method is used to cluster the tourist transfer volume between scenic spots, we select the best number of clustering by the elbow rule, and the grade interval is determined by clustering results. Secondly, we consider the passenger transfer volume and tourist flow as the nodes of the dynamic Bayesian network, which can estimate the probability of tourist transfer from the upstream scenic spots to the target scenic spot, and the tourist volume of the target scenic spot is predicted. Finally, the confusion matrix is used to verify the validity of the proposed model. The case study shows: 1.) The prediction accuracy of the model can reach about 96%, which indicates that the model is suitable for tourist flow prediction. 2.) Compared to ARIMA, SVR, K-means + BN, and K-means + DBN, the proposed model has better prediction accuracy. 3.) The Bayesian network model outperforms deep learning models in interpretability.","PeriodicalId":116712,"journal":{"name":"Frontiers of Traffic and Transportation Engineering","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121586326","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}
As a part of stock, safety stock reduces the possibility of stock shortage and the cost of stock shortage, but the unreasonable setting of safety stock will increase the cost. This paper takes safety stock as the research object, introduces the financial field MI-TVP-SV-VAR model to construct safety stock index, and verifies the feasibility and effectiveness of the index through an example. The research results show that the construction of safety stock index can scientifically guide enterprises to set up safety stock, product production and resource allocation and investment, and help enterprises to make rapid response to market changes.
{"title":"Construction and application of safety stock index based on MI-TVP-SV-VAR model","authors":"Xinghong Li, Zonglei Hu, Huaqiong Liu","doi":"10.1117/12.2652381","DOIUrl":"https://doi.org/10.1117/12.2652381","url":null,"abstract":"As a part of stock, safety stock reduces the possibility of stock shortage and the cost of stock shortage, but the unreasonable setting of safety stock will increase the cost. This paper takes safety stock as the research object, introduces the financial field MI-TVP-SV-VAR model to construct safety stock index, and verifies the feasibility and effectiveness of the index through an example. The research results show that the construction of safety stock index can scientifically guide enterprises to set up safety stock, product production and resource allocation and investment, and help enterprises to make rapid response to market changes.","PeriodicalId":116712,"journal":{"name":"Frontiers of Traffic and Transportation Engineering","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127002309","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}
Changmin Yang, Honggang Li, Jinghui Pei, Bowen Qiao, Jianzhe Chu, Ziyang Ye, Chaoyi Cui
In road construction, the compaction of the large-thickness water-stable layer is mainly done in layers. However, the construction period is long, and the integrity of the water-stable layer after compaction is not good. To determine the maximum false pavement thickness and rolling combination that can be compacted at one time by LSV220 single drum vertical vibratory roller. In this paper, two test sections with a virtual pavement thickness of 100 cm were set up to bury the sensors in layers. Through the sensor and sand filling method, the maximum thickness of the compacted pavement is 47cm, and the combination of rolling is "one static compaction, one Weak vibration, and three Strong vibrations" The BP neural network was constructed using the experimental data was used to predict the compaction by sensor data. The error between the predicted and measured values of this neural network was verified to be 1.44%.
{"title":"Performance study of vertical vibratory roller compaction of large thickness water stabilized layer","authors":"Changmin Yang, Honggang Li, Jinghui Pei, Bowen Qiao, Jianzhe Chu, Ziyang Ye, Chaoyi Cui","doi":"10.1117/12.2652410","DOIUrl":"https://doi.org/10.1117/12.2652410","url":null,"abstract":"In road construction, the compaction of the large-thickness water-stable layer is mainly done in layers. However, the construction period is long, and the integrity of the water-stable layer after compaction is not good. To determine the maximum false pavement thickness and rolling combination that can be compacted at one time by LSV220 single drum vertical vibratory roller. In this paper, two test sections with a virtual pavement thickness of 100 cm were set up to bury the sensors in layers. Through the sensor and sand filling method, the maximum thickness of the compacted pavement is 47cm, and the combination of rolling is \"one static compaction, one Weak vibration, and three Strong vibrations\" The BP neural network was constructed using the experimental data was used to predict the compaction by sensor data. The error between the predicted and measured values of this neural network was verified to be 1.44%.","PeriodicalId":116712,"journal":{"name":"Frontiers of Traffic and Transportation Engineering","volume":"215 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128018726","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}
In recent years, the civil aviation industry developed rapidly. Many airports have faced reconstruction and expansion. Non-stop construction has a negative impact on the operating efficiency and capacity. A case study of the target 4F airport is carried out to analyze the operation scheme of runway closure under the condition of non-stop construction. Analyze the impact of runway closure on the airport according to the change of airport traffic volume, runway and taxiway operation efficiency and other factors. It has guiding significance for the project. Provide reference for the airport construction and provide reference basis for the subsequent reasonable arrangement of construction sequence.
{"title":"Research on operation scheme and capacity of airport runway under non-stop construction","authors":"Q. Ye, Ping Xue, Xiaobo Zhu, Lei Guo, Junwei Hao","doi":"10.1117/12.2652460","DOIUrl":"https://doi.org/10.1117/12.2652460","url":null,"abstract":"In recent years, the civil aviation industry developed rapidly. Many airports have faced reconstruction and expansion. Non-stop construction has a negative impact on the operating efficiency and capacity. A case study of the target 4F airport is carried out to analyze the operation scheme of runway closure under the condition of non-stop construction. Analyze the impact of runway closure on the airport according to the change of airport traffic volume, runway and taxiway operation efficiency and other factors. It has guiding significance for the project. Provide reference for the airport construction and provide reference basis for the subsequent reasonable arrangement of construction sequence.","PeriodicalId":116712,"journal":{"name":"Frontiers of Traffic and Transportation Engineering","volume":"1154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132132616","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}
Highway construction activities lead to higher carbon emissions and cause climate warming. Therefore, highway construction projects are the key emission reduction in China according to the "double carbon" target. This paper adopts the "bottom-up" measurement method and divides the project into item project, division project and unit project for carbon emission measurement and analysis. A carbon emission database based on MySQL is built to integrate the project quantity quota and carbon emission factors of highway projects. A carbon emission measurement system is developed by MATLAB to intelligently realize the carbon emission measurement and analysis of highway projects. The case analysis shows that the carbon emission measurement system proposed in this paper can better reflect the carbon emission data during the construction period and provide data support for energy saving and emission reduction.
{"title":"An intelligent life-cycle carbon emission measurement system for highway pavement construction","authors":"Xiuge Wang, Xing Yang, Naifu Deng, Yawen Wang","doi":"10.1117/12.2652745","DOIUrl":"https://doi.org/10.1117/12.2652745","url":null,"abstract":"Highway construction activities lead to higher carbon emissions and cause climate warming. Therefore, highway construction projects are the key emission reduction in China according to the \"double carbon\" target. This paper adopts the \"bottom-up\" measurement method and divides the project into item project, division project and unit project for carbon emission measurement and analysis. A carbon emission database based on MySQL is built to integrate the project quantity quota and carbon emission factors of highway projects. A carbon emission measurement system is developed by MATLAB to intelligently realize the carbon emission measurement and analysis of highway projects. The case analysis shows that the carbon emission measurement system proposed in this paper can better reflect the carbon emission data during the construction period and provide data support for energy saving and emission reduction.","PeriodicalId":116712,"journal":{"name":"Frontiers of Traffic and Transportation Engineering","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114607455","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}
In view of the problems such as the imperfect theoretical system and the lack of evaluation system for the development of scenic byway in China, this paper studies and puts forward the basic connotation, main characteristics and spatial structure of scenic byway on the basis of fully drawing lessons from the evaluation and identification standards of scenic byway in the United States and combining with the actual development of scenic byway in China. According to the essential characteristics of scenic byway, this paper puts forward the main evaluation ideas, evaluation dimensions and evaluation index composition of China's scenic byway and uses analytic hierarchy process and fuzzy comprehensive evaluation method to calculate the index weight and overall evaluation score.
{"title":"Research on evaluation ideas and index construction of China's scenic byway","authors":"Xing-dong Yang, Fuqin Yue, Y. Liu, Pu Fan","doi":"10.1117/12.2652407","DOIUrl":"https://doi.org/10.1117/12.2652407","url":null,"abstract":"In view of the problems such as the imperfect theoretical system and the lack of evaluation system for the development of scenic byway in China, this paper studies and puts forward the basic connotation, main characteristics and spatial structure of scenic byway on the basis of fully drawing lessons from the evaluation and identification standards of scenic byway in the United States and combining with the actual development of scenic byway in China. According to the essential characteristics of scenic byway, this paper puts forward the main evaluation ideas, evaluation dimensions and evaluation index composition of China's scenic byway and uses analytic hierarchy process and fuzzy comprehensive evaluation method to calculate the index weight and overall evaluation score.","PeriodicalId":116712,"journal":{"name":"Frontiers of Traffic and Transportation Engineering","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123867647","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}
Qizheng Song, Hang Yi, Youliang Huang, J. Mu, Zirui Wang, Yan Guo, Huaqiong Liu
In recent years, the process of expressway construction has been accelerating, and operators need to carry out daily maintenance of the expressway. At the same time, expressway belongs to fast driving space. High speed driving will create a blind area of vision for operators, seriously threaten the life safety of maintenance operators, and cause great damage to the life and property safety of road maintenance personnel, maintenance operators and drivers. Based on this, the team designed and developed an active safety warning robot and intelligent road cone for accompanying maintenance operation. The robot body integrates a number of technical equipment such as visible light camera, audible and visual alarm and collision early warning radar. The robot can not only push the early warning information, but also accept the collapse signal of intelligent road cone and push the multi-sensory early warning signal. The intelligent road cone is equipped with RFID chip and balance sensor, which can push the early warning signal according to the collapse. The early warning system can effectively solve the early warning problems for the safety of operators and social vehicles when out of control vehicles break into the maintenance area in the process of expressway maintenance.
{"title":"Automatic safety warning system for concomitant maintenance operations","authors":"Qizheng Song, Hang Yi, Youliang Huang, J. Mu, Zirui Wang, Yan Guo, Huaqiong Liu","doi":"10.1117/12.2652753","DOIUrl":"https://doi.org/10.1117/12.2652753","url":null,"abstract":"In recent years, the process of expressway construction has been accelerating, and operators need to carry out daily maintenance of the expressway. At the same time, expressway belongs to fast driving space. High speed driving will create a blind area of vision for operators, seriously threaten the life safety of maintenance operators, and cause great damage to the life and property safety of road maintenance personnel, maintenance operators and drivers. Based on this, the team designed and developed an active safety warning robot and intelligent road cone for accompanying maintenance operation. The robot body integrates a number of technical equipment such as visible light camera, audible and visual alarm and collision early warning radar. The robot can not only push the early warning information, but also accept the collapse signal of intelligent road cone and push the multi-sensory early warning signal. The intelligent road cone is equipped with RFID chip and balance sensor, which can push the early warning signal according to the collapse. The early warning system can effectively solve the early warning problems for the safety of operators and social vehicles when out of control vehicles break into the maintenance area in the process of expressway maintenance.","PeriodicalId":116712,"journal":{"name":"Frontiers of Traffic and Transportation Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129949254","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}
With the in-depth study of underground logistics system, the design and application of its transportation tools have become the key. This paper will discuss the innovative application of intelligent equipment -shuttle vehicle in the underground logistics system, construct the three-level network and operation platform of the underground logistics system, and study the new mode of underground logistics system based on shuttle vehicle, so as to play a driving role in the research of underground logistics.
{"title":"Application of shuttle vehicle in urban underground logistics system","authors":"Yuan-yi Xia, Z. Fu, Huaqiong Liu","doi":"10.1117/12.2652774","DOIUrl":"https://doi.org/10.1117/12.2652774","url":null,"abstract":"With the in-depth study of underground logistics system, the design and application of its transportation tools have become the key. This paper will discuss the innovative application of intelligent equipment -shuttle vehicle in the underground logistics system, construct the three-level network and operation platform of the underground logistics system, and study the new mode of underground logistics system based on shuttle vehicle, so as to play a driving role in the research of underground logistics.","PeriodicalId":116712,"journal":{"name":"Frontiers of Traffic and Transportation Engineering","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116330125","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}
When the scale of logistics network of regional logistics enterprises reaches a certain level, the competition of network must turn to fine management, otherwise the cost of operation management will increase, and the efficiency of operation will decrease. The construction of management performance-oriented evaluation system is an effective means for enterprises to carry out directional management reform to reduce cost and increase efficiency. The enterprise management performance evaluation system is constructed based on PCA-DEA model. PCA was used to reduce dimension and determine performance evaluation indexes, and DEA data envelopment analysis was used to analyze and evaluate logistics nodes and find the improvement points. Finally, the optimization strategy of reducing cost and increasing efficiency is put forward based on the point of increasing efficiency.
{"title":"Regional logistics enterprise performance management cost reduction and efficiency evaluation system","authors":"Yuyao Zhao, Haoming Ma, Huaqiong Liu","doi":"10.1117/12.2652371","DOIUrl":"https://doi.org/10.1117/12.2652371","url":null,"abstract":"When the scale of logistics network of regional logistics enterprises reaches a certain level, the competition of network must turn to fine management, otherwise the cost of operation management will increase, and the efficiency of operation will decrease. The construction of management performance-oriented evaluation system is an effective means for enterprises to carry out directional management reform to reduce cost and increase efficiency. The enterprise management performance evaluation system is constructed based on PCA-DEA model. PCA was used to reduce dimension and determine performance evaluation indexes, and DEA data envelopment analysis was used to analyze and evaluate logistics nodes and find the improvement points. Finally, the optimization strategy of reducing cost and increasing efficiency is put forward based on the point of increasing efficiency.","PeriodicalId":116712,"journal":{"name":"Frontiers of Traffic and Transportation Engineering","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127125468","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}
Under the background of the continuous progress of 5G, big data, Internet and other technologies, the construction of smart port is the future development trend of the port industry. How to effectively measure the smart development level of port is the key problem to be solved in the research. According to the influencing factors of smart port development, this paper establishes an evaluation index system of smart port development level from six indicators and uses entropy weight TOPSIS method as a comprehensive evaluation method. Shanghai Port is selected as the research object for in-depth empirical research to evaluate and analyze the development level of smart port. In terms of results, the smart development level of Shanghai Port generally shows an upward trend, which has experienced three stages: slow improvement, rapid improvement and small decline. Among them, innovation capacity has the greatest impact on the development level of smart port. The evaluation results of this paper can provide some ideas for the future smart development of the port.
{"title":"Evaluation of smart port development level based on entropy weight TOPSIS method","authors":"Cuilian Liu, Siqi Zhan, Lina Heng","doi":"10.1117/12.2652585","DOIUrl":"https://doi.org/10.1117/12.2652585","url":null,"abstract":"Under the background of the continuous progress of 5G, big data, Internet and other technologies, the construction of smart port is the future development trend of the port industry. How to effectively measure the smart development level of port is the key problem to be solved in the research. According to the influencing factors of smart port development, this paper establishes an evaluation index system of smart port development level from six indicators and uses entropy weight TOPSIS method as a comprehensive evaluation method. Shanghai Port is selected as the research object for in-depth empirical research to evaluate and analyze the development level of smart port. In terms of results, the smart development level of Shanghai Port generally shows an upward trend, which has experienced three stages: slow improvement, rapid improvement and small decline. Among them, innovation capacity has the greatest impact on the development level of smart port. The evaluation results of this paper can provide some ideas for the future smart development of the port.","PeriodicalId":116712,"journal":{"name":"Frontiers of Traffic and Transportation Engineering","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129036613","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}
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