2015 International Conference on Transportation Information and Safety (ICTIS)最新文献_第8页

Annual average daily traffic estimation from short traffic counts 根据短流量计算估计年平均每日流量

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232071

Luo Zongfan, Zhong Ming

{"title":"Annual average daily traffic estimation from short traffic counts","authors":"Luo Zongfan, Zhong Ming","doi":"10.1109/ICTIS.2015.7232071","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232071","url":null,"abstract":"Highway agencies have gathered traffic data for a wide range of engineering and management purposes since the early days. Traffic summary statistics, such as annual average daily traffic (AADT) and design hourly volume (DHV), estimated from such data are the foundation of decision-makings related to the planning, design, operation and management of highway transportation system. Traditional factoring method is recommended by the Federal Highway Administration (FHWA) Traffic Monitoring Guide (TMG 2001) [4] for estimating AADTs from short-period or sample traffic counts. Several studies in the past have attempted to rationalize duration and schedules of sample traffic counts that are shorter than 24 hours in length. This study focuses on reliability of AADT estimates from 1-day, 2-day, 3-day and 5-day traffic counts. The results of this study reveal that shorter counts (1 or 2-day counts) conducted between Monday and Wednesday) may produce AADT estimates as good as the estimates from longer counts (5-day counts). The analysis and findings of this study on the adequacy of short period traffic counts from the perspective of AADT estimation will help highway agencies rationalize their traffic counting program, especially when they have a tight budget.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"21 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":"127628563","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: 4

Individual driver safety awareness assessment using simulating experiment data 基于模拟实验数据的个体驾驶员安全意识评估

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232121

Gao Song, Yan Lixin, Qi Yuqian

{"title":"Individual driver safety awareness assessment using simulating experiment data","authors":"Gao Song, Yan Lixin, Qi Yuqian","doi":"10.1109/ICTIS.2015.7232121","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232121","url":null,"abstract":"Driver safety awareness level has important influence on traffic safety, in order to extract and analyze the factors and events which have a significant effect on driver safety awareness while driving. This research uses virtual reality technology to design and implement several kinds of typical virtual traffic scenarios for safety consciousness level evaluation, and sets the assessment scenarios of intersection as an example, carries out 80 groups of driving simulation experiments, collects several experimental data including driver status, vehicle status and traffic environment, etc. On this basis, logistic regression model is used to consider the three factors, namely human-vehicle - road, and establish the driving safety awareness level evaluation model under the typical traffic scene. It is found that the driver experience has important influence on its security level of consciousness. The results show that the area under the ROC curve is 0.918, which shows that the established bi-level logistic model in terms of driver safety awareness evaluation and forecast has good adaptability and practicability.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"4 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":"117082987","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

Reliability model based on stress-strength interference for marine propulsion shafting 基于应力-强度干涉的船舶推进轴系可靠性模型

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232107

Shuai Chen, C. Yuan, Xin-ping Yan

引用次数: 0

A new device to reduce false alarm rate of emergency position indicating radio beacons 一种降低应急无线电位置指示信标误报率的新装置

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232122

Teng-da Sun, Xue Yang

引用次数: 2

The estimation of passenger car equivalent for highway under oversaturated conditions 过饱和条件下公路乘用车当量的估计

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232073

Liao Shuguang, Wang Ke

引用次数: 1

A bus progression model based on the control of bus dwell time at stops and running speed 基于车站停留时间和运行速度控制的公交线序模型

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232063

Xiang Yun, W. Baojie, Wang Wei, Wang Hao

引用次数: 1

Drivers' right-angle collision avoidance behaviors at non-signalized intersection — A driving simulator based study 无信号交叉口驾驶员直角避碰行为——基于驾驶模拟器的研究

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232173

Xiaomeng Li, Xuedong Yan, Y. Zhang, Yun Wang

{"title":"Drivers' right-angle collision avoidance behaviors at non-signalized intersection — A driving simulator based study","authors":"Xiaomeng Li, Xuedong Yan, Y. Zhang, Yun Wang","doi":"10.1109/ICTIS.2015.7232173","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232173","url":null,"abstract":"Safety at non-signalized intersections is of significant importance to transportation safety study due to the large number of such intersections in transportation network and the complexity of traffic movements at these locations also leads to large numbers of conflicts. This study designed a collision scenario by using driving simulator to investigate the drivers' behavior performance at non-signalized intersection when encountered with a potential right-angle collision and evaluate the behavior mechanism in the collision avoidance process. Experiment results indicated most drivers decelerated to avoid the collision while others accelerated. The drivers' lane position preference was changed from right to left side of the lane center after the conflict. The drivers' braking response time not only influenced the key variables in the collision avoidance significantly, such as the average deceleration and the position after deceleration, but also had a significant effect on the collision avoidance result, which was indicated by the minimum distance between the simulator and the conflict vehicle. Besides, slight gender difference was found in the experiment. Female drivers had larger lane position change than male drivers in the collision avoidance and they were also closer to the conflict vehicle than male drivers after the collision avoidance.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"103 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":"116932848","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

Prediction models of freeway traffic incident delay 高速公路交通事故延误预测模型

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232054

Haozhe Cong, Jun Liu, Mengxue Wu

引用次数: 0

Evaluation of the wear state for diesel engine based on RIMER with the uncertain information 不确定信息下基于RIMER的柴油机磨损状态评估

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232087

Xiaojian Xu, Xin-ping Yan, C. Sheng, Jiangbin Zhao

{"title":"Evaluation of the wear state for diesel engine based on RIMER with the uncertain information","authors":"Xiaojian Xu, Xin-ping Yan, C. Sheng, Jiangbin Zhao","doi":"10.1109/ICTIS.2015.7232087","DOIUrl":"https://doi.org/10.1109/ICTIS.2015.7232087","url":null,"abstract":"Literature review indicates that a large amount of failures are caused by abnormal wear of the diesel engine components. Therefore, it is essential to evaluate the wear state of the diesel engine. A large amount of oil information can be attained based on the ferrography analysis which can be well applied in the evaluation of the wear state for the diesel engine. Considering the uncertainty and vagueness of the information, an evaluation model of the wear state for the diesel engine was constructed based on the belief rule-base inference methodology using the evidential reasoning approach (RIMER), combining the expert experience with experimental data. In this paper, an EQD xx-xx diesel engine was selected as the research object and the oil information acquired from ferrographic analysis was acquired by the 1000h reliability test. To avoid the combinational explosion problem of the belief rule-base, feature selection with the interaction information was conducted to reduce the number of the antecedent attributes initially. By considering the difference of multi-experts experience, an initial BRB model was constructed to evaluate the wear state of the diesel engine. The study demonstrates that the model constructed by RIMER can accurately reflect the wear state of the diesel engine and take full use of uncertain information to improve the accuracy of the wear state evaluation.","PeriodicalId":389628,"journal":{"name":"2015 International Conference on Transportation Information and Safety (ICTIS)","volume":"6 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":"114580797","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

Design of a pulsing scheme for BeiDou pseudolites signals 北斗伪卫星脉冲信号的设计

2015 International Conference on Transportation Information and Safety (ICTIS) Pub Date : 2015-06-25 DOI: 10.1109/ICTIS.2015.7232181

Wu Di, Lu Hongyang, Chen Wei, Yang Xi

引用次数: 2