2019 5th International Conference on Transportation Information and Safety (ICTIS)最新文献_第10页

Examining Usage Patterns of Public Biking Behavior Based on IC Card Data: Comparison Before and After the Usage of Free-floating Shared Bikes 基于IC卡数据的公共骑行行为使用模式研究——自由浮动共享单车使用前后对比

2019 5th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2019-07-01 DOI: 10.1109/ICTIS.2019.8883792

Zhuanzhuan Shi, Hong Chen

{"title":"Examining Usage Patterns of Public Biking Behavior Based on IC Card Data: Comparison Before and After the Usage of Free-floating Shared Bikes","authors":"Zhuanzhuan Shi, Hong Chen","doi":"10.1109/ICTIS.2019.8883792","DOIUrl":"https://doi.org/10.1109/ICTIS.2019.8883792","url":null,"abstract":"Construction and operation of public bike-sharing have played a central role in improving urban transportation system and facilitating residents’ travel. This research examines usage patterns of biking behavior by analyzing extensive smart card data from public bike-sharing system in Ningbo, China. Existing studies consider usage patterns of a bike-sharing scheme mainly basing it on trip and weather data and therefore, few studies have taken into account how free-floating shared bikes affect public bicycles. Hypothesis testing and multinomial logistic regression model were adopted to examine trends and explore differences between the two datasets. This research found that trip frequency presents habitual patterns with an obvious morning and evening peak and that usage frequency of public bikes decreased after the emergence of free-floating shared bikes, especially in peak periods of weekdays. Concurrently, it’s found that customers tend to spend significantly longer time on public bicycle trips than before emergence of free-floating shared bikes. Results indicate that free-floating shared bikes and public bicycles have competitive relationship in peak period. The findings of this research will therefore provide a good explanation of how bicycles serve residents and provide support for public bike system operational decisions.","PeriodicalId":325712,"journal":{"name":"2019 5th International Conference on Transportation Information and Safety (ICTIS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127597909","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: 2

Research on G-LBS System for Intermodal Transport Mobile Equipment Based on Satellite 基于卫星的移动设备多式联运G-LBS系统研究

2019 5th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2019-07-01 DOI: 10.1109/ICTIS.2019.8883678

Jieyin Lyu, S. Zhou, R. Huang, Shijian Chen, Hao Liu, Xiangmo Zhao

引用次数: 0

Simulations of Traffic Control Managements on PM2.5 Emissions Reduction 交通管制管理对减少PM2.5排放的模拟

2019 5th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2019-07-01 DOI: 10.1109/ICTIS.2019.8883601

Yuhong Chen, Chaozhe Jiang, Chao Wen, Hao Wu, Youhua Tang

引用次数: 1

Efficacy Evaluation of Maritime AtoN by Fuzzy AHP Approach 基于模糊层次分析法的海事AtoN效能评价

2019 5th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2019-07-01 DOI: 10.1109/ICTIS.2019.8883786

Ziyi Nie, Zhonglian Jiang, X. Chu, Zhen Yu

引用次数: 1

A Low-cost Driver and Passenger Activity Detection System based on Deep Learning and Multiple Sensor Fusion 基于深度学习和多传感器融合的低成本驾驶员和乘客活动检测系统

2019 5th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2019-07-01 DOI: 10.1109/ICTIS.2019.8883750

Bozhao Qi, Wei Zhao, Xiaohan Wang, Shen Li, Troy Runge

引用次数: 7

Study on Flight Crew’s Team Situation Awareness Based on Team and Task Process 基于团队与任务过程的机组团队态势感知研究

2019 5th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2019-07-01 DOI: 10.1109/ICTIS.2019.8883854

Yanqing Wang, Chaoqun Liu

{"title":"Study on Flight Crew’s Team Situation Awareness Based on Team and Task Process","authors":"Yanqing Wang, Chaoqun Liu","doi":"10.1109/ICTIS.2019.8883854","DOIUrl":"https://doi.org/10.1109/ICTIS.2019.8883854","url":null,"abstract":"In this paper, we conducted a study on flight crew’s team situation awareness(TSA) during the approaching landing phase, the purpose of this study is to improve the TSA of the flight crew and to ensure the flight safety. A method of measuring flight crew’s team situation awareness based on situation awareness and team shared model was proposed and the visual landing experiment was designed based on simulated flight experiment platform. The individual situation awareness (ISA), mutual awareness (MA) and shared mind (SM) which includes team dimension and task dimension of flight crew were measured during the experiments, and their safety performance was obtained by expert scoring method. The results showed that there was no significant difference in ISA between high and low performance groups, there was a low positive correlation between safety performance and ISA, and the correlation coefficient was 0.423; However there were significant differences in MA, team process and task process between high and low performance groups, there were a moderate positive correlation between safety performance and these 3 indicators, and the correlation coefficient were 0.695, 0.753 and 0.739 respectively. Taking communication and information integrity as independent variables, and those 4 indicators as dependent variables, two-factor analysis of variance was conducted. The results showed that the main effects of communication and information integrity were significant, the interaction between them was not significant. To sum up, in addition to improving the individual SA of pilots, it is more important to ensure the integrity of flight data and increase the level of crew’s mutual awareness and team shared mind through the effective communication of the crew, it is significant to improve team situation awareness and ensure flight safety.","PeriodicalId":325712,"journal":{"name":"2019 5th International Conference on Transportation Information and Safety (ICTIS)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128064838","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

Research on multi-AGV path planning in automated container terminal 自动化集装箱码头中多agv路径规划研究

2019 5th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2019-07-01 DOI: 10.1109/ICTIS.2019.8883847

Mengting Yu, Zhiling He, Dawei Li, Liang Yin

引用次数: 0

Level of Service of Multi-Lane highway Section under fluctuated traffic flow condition: a state-dependent Discrete-Event Simulation framework 波动交通流条件下多车道公路路段服务水平:一种状态相关离散事件仿真框架

2019 5th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2019-07-01 DOI: 10.1109/ICTIS.2019.8883848

Afaq Khattak

{"title":"Level of Service of Multi-Lane highway Section under fluctuated traffic flow condition: a state-dependent Discrete-Event Simulation framework","authors":"Afaq Khattak","doi":"10.1109/ICTIS.2019.8883848","DOIUrl":"https://doi.org/10.1109/ICTIS.2019.8883848","url":null,"abstract":"Multi-lane highways have moderate to high capacity and designed to provide a balance between traffic mobility and accessibility. The assessment of Level of Service (LOS) of multi-lane highways is traditionally based on the Highway Capacity Manual (HCM). However, the HCM method does not takes into account randomness in vehicular flow as well as state-dependent speed of vehicles on multi-lane highways, which do not depict actual conditions. To aid the traffic and highway designers as well as to capture the randomness in the vehicular arrival flow and state-dependent speed, a Discrete-Event Simulation (DES) framework using the Phase-Type Distribution is developed. The Phase-Type distribution takes into account randomness in the vehicular flow. The LOS computation under different settings of design parameters shows that the vehicular arrival rate, Squared Coefficient of Variation (SCV) in the inter-arrival time and number of lanes significantly affects the LOS of multi-lane highways. The length of multi-lane section also has an influence on the LOS, which is ignored by the HCM. The proposed DES framework will assist the traffic and highway designers to make smart choices in LOS computation.","PeriodicalId":325712,"journal":{"name":"2019 5th International Conference on Transportation Information and Safety (ICTIS)","volume":"22 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130383396","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

A Bayesian Network Model for Real-time Crash Prediction Based on Selected Variables by Random Forest 基于随机森林选择变量的实时碰撞预测贝叶斯网络模型

2019 5th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2019-07-01 DOI: 10.1109/ICTIS.2019.8883694

Mingxian Wu, Donghui Shan, Zuo Wang, Xiaoduan Sun, Jianbei Liu, Ming Sun

{"title":"A Bayesian Network Model for Real-time Crash Prediction Based on Selected Variables by Random Forest","authors":"Mingxian Wu, Donghui Shan, Zuo Wang, Xiaoduan Sun, Jianbei Liu, Ming Sun","doi":"10.1109/ICTIS.2019.8883694","DOIUrl":"https://doi.org/10.1109/ICTIS.2019.8883694","url":null,"abstract":"To reduce crash risk through managing real-time traffic flow is an effective way to improve highway safety. Populating crash data with the high-resolution (in space and time) traffic data to investigate the relationship between crash risk and traffic conditions can help the active traffic management (ATM) to predict crash risk in real-time. To improve the accuracy of the existing real-time crash prediction methods, this paper proposes a Bayesian network (BN) model with the variables selected by the random forest (RF). The study used the traffic and crash data from I-5 segment (13.8-miles-long) in Los Angeles, where the traffic data (flow, speed, occupancy and etc.) were recorded by sensors. The RF was used to rank the explanatory variables based on the Gini index, which yields the most significant variables for the crash prediction. Different from the previous studies, the gradient change of traffic data along distance is recognized as an important variable. The developed BN-RF model is evaluated by ROC curve. The results indicate that traffic conditions at two five-minute intervals prior to a crash is very sensitive to the crash risk prediction. A sudden speed change (speed magnitude in a short time and distance), characterized as one unit, makes the distribution of crash posterior probability at least 0.045 higher compared to the marginal value. The most important finding is that the proposed BN-RF model for the real-time crash prediction can accurately predict 70.46% of crashes with a 16.07% of false alarm rate, which is better than that of previous studies.","PeriodicalId":325712,"journal":{"name":"2019 5th International Conference on Transportation Information and Safety (ICTIS)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114986195","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: 5

Estimating Space Rents and Land Values in Alberta 估算艾伯塔省的空间租金和土地价值

2019 5th International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2019-07-01 DOI: 10.1109/ICTIS.2019.8883578

J. Hunt, A. Silva, J. Abraham

{"title":"Estimating Space Rents and Land Values in Alberta","authors":"J. Hunt, A. Silva, J. Abraham","doi":"10.1109/ICTIS.2019.8883578","DOIUrl":"https://doi.org/10.1109/ICTIS.2019.8883578","url":null,"abstract":"Values of residential rents were established from direct observations of rents and related estimates of market prices as part of the development of a spatial economic model of Alberta using the PECAS modelling system. The estimates of market prices were drawn from available valuation data used in municipal tax assessments. The observations of market rents were gathered from online lists of offers. These were used to estimate the parameters of an equation that both (a) relates rent to purchase price and (b) explains how rents are impacted by spatially varying factors considered in PECAS. A Bayesian approach was used in estimation in order to incorporate prior knowledge from previous PECAS work and specify expected relationships to support results for certain types of development in areas where the data were limited. This provided a form of non-linear hedonic model using estimates of zonal-level base rents and the influences of parcel-level attributes adjusting these rents, including structure type, building quality and proximities to specific features. PECAS is designed to both explain these zonal-level base rents and also respond to them, indicating (a) how supply and demand interact to establish these rents, (b) how the demand for space is influenced by zonal-level attributes – such as neighbourhood school quality, proportion of green space and crime rate – along with accessibilities provided by the transportation system together with the spatial distribution of development, and (c) how the supply of space is adjusted by developer actions in the construction, renovation and/or renewal of space as capital investments.","PeriodicalId":325712,"journal":{"name":"2019 5th International Conference on Transportation Information and Safety (ICTIS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130764771","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