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Vessel traffic flow forecasting with the combined model based on support vector machine 基于支持向量机的组合模型船舶交通流量预测
2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232151
W. Haiyan, Wang Youzhen
{"title":"Vessel traffic flow forecasting with the combined model based on support vector machine","authors":"W. Haiyan, Wang Youzhen","doi":"10.1109/ICTIS.2015.7232151","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232151","url":null,"abstract":"The research of vessel traffic flow prediction is important basis of waterway planning, design and vessel navigation management. Vessel traffic model is a nonlinear, uncertain and complex dynamics system, which hardly can be expressed using some precise mathematical models. Forecasting models all have limitations to reflect the overall traffic flow situations. This article introduces three single forecasting models of vessel traffic flow with RBF neural network, Grey forecasting and auto-regression. And then combining the three models with the support vector machine (SVM) is to make the combination forecasting. Based on the vessel traffic flow dates of the Yangtze River, the result of combination forecasting is as the final predicted value. Kinds of forecasting method fusion which are fit with the vessel traffic flow forecasting, can reduce the uncertainty of single prediction methods and increase the accuracy and robustness of the prediction.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114992336","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: 14
Research on bottleneck effect of tunnel in steep uphill of city highway 城市公路陡坡隧道瓶颈效应研究
2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232065
Shui Yishui, Li Fang, Chen Wei
{"title":"Research on bottleneck effect of tunnel in steep uphill of city highway","authors":"Shui Yishui, Li Fang, Chen Wei","doi":"10.1109/ICTIS.2015.7232065","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232065","url":null,"abstract":"In the steep uphill area of a tunnel in the city highway, because of the brightness environment coupled with gravity causes the drivers slowing down the speed unwarily. This will makes the average speed of vehicles reduce. Based on METANET model shows that this section can be equivalent to reducing lane bottleneck road, with traffic flow increases, the degree of congestion has catastrophe. The simulation by vissim and the data analysis by matlab shows that when less traffic on road, such bottlenecks have much smaller impact on traffic flows, and when traffic flow increases, this will cause serious traffic congestion suddenly. Meanwhile the bottleneck effect of steep uphill in tunnel has relationship with the proportion of vehicles which have significant reduction of the speed.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133356496","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: 1
The research on detection and management for mattress construction in inner-river waterway 内河航道垫层施工检测与管理研究
2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232118
Geng Xiongfei, Zhou Junhua, Chen Xianqiao
{"title":"The research on detection and management for mattress construction in inner-river waterway","authors":"Geng Xiongfei, Zhou Junhua, Chen Xianqiao","doi":"10.1109/ICTIS.2015.7232118","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232118","url":null,"abstract":"Since sand under water occurs siltation and leads to clogging issue, it has become a serious security problem to ships in inner-river. Therefore, it is very important to lay mattress in waterway to cure sediment and ensure the normal depth. However, due to the underwater flow speed, laying mattress is very difficult. The Mattress is often in offset position, and this could result in exposing riverbed and making waterway construction failed. It is necessary to study technologies for measuring the quality of mattress construction. But water in Yangtze River is turbidity, it is difficult to get accurate signal about the constructing under the water by using normal method. In this paper, a valid solution is proposed for this problem. water sink drain laying information is obtained by using side-scan sonar, and the images of mattress construction underwater is formed with these signal characteristics. Also an integrated management information system is designed to manage the mattress projects, construction units, the engineering vessels, testing procedure and test results. The application result shows that the relevant technology and management system proposed in this paper is effective.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132087542","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
Study on modeling of marine propulsion system coupled with bearing hydrodynamic lubrication 船舶推进系统轴承流体动力润滑耦合建模研究
2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232169
Weizhong Tan, Qianwen Huang, Cong Zhang, Xin-ping Yan
{"title":"Study on modeling of marine propulsion system coupled with bearing hydrodynamic lubrication","authors":"Weizhong Tan, Qianwen Huang, Cong Zhang, Xin-ping Yan","doi":"10.1109/ICTIS.2015.7232169","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232169","url":null,"abstract":"This paper is based on the multi-body dynamic coupling theory and finite element theory. A multi-body dynamic model of the slow-speed ship propulsion shafting system coupled with bearing hydrodynamic lubrication is built by Adams, Matlab and Ansys. The influence of hydrodynamic lubrication is mainly manifested in oil film pressure distribution and bearing reaction force. The oil film pressure distribution on the sliding bearing which is used to calculate the bearing reaction force is obtained based on the position and velocity of the shaft center by Matlab. The motion parameters of shaft center obtained from Adams verify the validity of simulation method and practicability of the model with hydro-bearings. By contracting with the simulation results of the bearing reaction forces, the simulation result obtained from the dynamic model of ship propulsion shafting coupled with bearing hydrodynamic lubrication is more reasonable which means it is necessary to consider the influence of oil film on simulation of ship propulsion shafting.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116805914","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
SLP-based layout optimization of logistics workshop facilities of huai'an courier post 基于slp的淮安快递物流车间设施布局优化
2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232123
Y. Zheng, B. Zhan
{"title":"SLP-based layout optimization of logistics workshop facilities of huai'an courier post","authors":"Y. Zheng, B. Zhan","doi":"10.1109/ICTIS.2015.7232123","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232123","url":null,"abstract":"In this paper, under the condition of huai'an postal-delivery logistics facilities layout and the basic principle of SLP method, draw a SLP method research steps, and according to the principle and research further steps to huai'an postal-delivery logistics existing operation process and facility layout of survey and mapping, finally it is concluded that the reasonable solution.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114573819","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: 3
A research on AIS-based embedded system for ship collision avoidance 基于ais的船舶避碰嵌入式系统研究
2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232141
Dejun Chen, Xuechao Wan, Chuyan Dai, J. Mou
{"title":"A research on AIS-based embedded system for ship collision avoidance","authors":"Dejun Chen, Xuechao Wan, Chuyan Dai, J. Mou","doi":"10.1109/ICTIS.2015.7232141","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232141","url":null,"abstract":"This paper uses the data provided by AIS as the sources of information and combines the actual needs for ship collision avoidance perception. Considering the major factor for ship collision impact, a mathematical model of risk evaluation is established for embedded system, and a new design of AIS-based embedded system for ship collision avoidance is proposed. By utilizing an ARM platform, the system has realized many decision support functions, such as intelligent analysis, forewarning prompt, operation suggestion, and data backtracking, displaying and human-computer interaction. The results shows that the system can satisfy the demand of auxiliary decision support for ship collision avoidance operation.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134112458","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: 28
Test method research of wet grip performance of C1 tire C1轮胎湿抓性能试验方法研究
2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232210
Rongliang Liang, Lin Yuan
{"title":"Test method research of wet grip performance of C1 tire","authors":"Rongliang Liang, Lin Yuan","doi":"10.1109/ICTIS.2015.7232210","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232210","url":null,"abstract":"The test method for C1 tire wet grip performance based on European ECE R117 is analyzed, combined with the characteristics of China domestic proving ground, the test and evaluation process and test ability for C1 tire wet grip performance has already been established, which has great reference significance for the formulation standard for the test evaluation and classification of tire performance.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124685326","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
Study on decision-making process for choosing an appropriate high speed transit 合适的高速交通选择决策过程研究
2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232185
Ruiqing Cai, Chao Zhao
{"title":"Study on decision-making process for choosing an appropriate high speed transit","authors":"Ruiqing Cai, Chao Zhao","doi":"10.1109/ICTIS.2015.7232185","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232185","url":null,"abstract":"In recent years, High Speed Transit (HST) has been implemented to improve the level of service of public transit systems, ease traffic congestion and decrease greenhouse emissions in urban areas. Light rail transit (LRT) and bus rapid transit (BRT) are often deemed as favorable alternatives, but there has been the debate about which one is more appropriate. The informed decision cannot be made without simultaneously considering the relative merits of LRT and BRT, local objectives, travel demand, available funding and others factors. To assist in decision making of choosing an appropriate HST solution for an urban city, this paper firstly conducted literature review to compare the key features of BRT and LRT. Their impacts on the decision-making process were also analyzed. Then the paper examined how the decision was made in two selected cities: Guangzhou and Ottawa. Finally, a step by step decision-making process for choosing an appropriate HST system was suggested. Two questions were answered in this paper: (1) what is involved in deciding the best solution? (2) How can the final decision be reached?","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"44 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124885569","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
Study on the canal fleet transportation organization based on shore's power supply 基于岸上供电的运河船队运输组织研究
2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232109
Qiang-ying Cheng, Jiaqi Yang
{"title":"Study on the canal fleet transportation organization based on shore's power supply","authors":"Qiang-ying Cheng, Jiaqi Yang","doi":"10.1109/ICTIS.2015.7232109","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232109","url":null,"abstract":"The pollution of the navigable waters brought by canal shipping can't be ignored, so it has become a widely concerned issue to reduce ship emissions so as to weaken their impact on canal water resources. In our country, canal ship with external shore-based cables still in the research stage, but it has very big development perspective. Based on this, primarily select the fleet transport organization of the Grand Canal based on shore-based electric propulsion, set the fleet operational indicators and economic indicators, then decide the primary scheme making use of the systematic decision.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130163477","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
Urban dynamic multipath selection algorithm based on road network hierarchy 基于路网层次的城市动态多路径选择算法
2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232127
Zhu Liyun, Sun Jianping
{"title":"Urban dynamic multipath selection algorithm based on road network hierarchy","authors":"Zhu Liyun, Sun Jianping","doi":"10.1109/ICTIS.2015.7232127","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232127","url":null,"abstract":"Route choice model algorithm is one of the core technologies for traveler dynamic navigation and traffic simulation model. This article puts forward an urban dynamic multipath selection algorithm with optimal aggregate utility based on trunk network hierarchy. Using utility optimization algorithm, the traveler's preferences for high-grade roads and other behavioral characteristics like driving turn evasion are included in the model algorithm, so as to reflect, as accurately as possible, the driver's judgment of travel routes in real-word and more reliable route planning. Finally, a verification test is made with Beijing's central areas as target areas. The results are found to be satisfactory.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130216569","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
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