Journal of Transportation Engineering-asce最新文献_第9页

Pay Factors Based on Observed Field-Performance Data 基于观察油田性能数据的产油因素

Journal of Transportation Engineering-asce Pub Date : 2016-02-04 DOI: 10.1061/(ASCE)TE.1943-5436.0000839

Prasad Buddhavarapu, J. Prozzi, A. Smit

引用次数: 2

Estimating Truck Aggressiveness Using a Multilinear Fatigue Model and a Viscoelastic Pavement Model 基于多线性疲劳模型和粘弹性路面模型的卡车侵蚀性评估

Journal of Transportation Engineering-asce Pub Date : 2016-02-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000811

F. Homsi, J. Balay, D. Bodin, D. Breysse, S. Yotte

引用次数: 1

Enabling Network-Wide Tolling-Strategy Assessment via Customized Route-Choice Simulation Module 通过自定义路由选择仿真模块实现全网收费策略评估

Journal of Transportation Engineering-asce Pub Date : 2016-02-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000808

Guangning Xu, X. Liu, S. An, Yinhai Wang, Yunteng Lao

引用次数: 1

Impact of Speed Limits and Road Characteristics on Free-Flow Speed in Urban Areas 限速和道路特性对城市自由流速度的影响

Journal of Transportation Engineering-asce Pub Date : 2016-02-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000800

A. Silvano, K. Bang

{"title":"Impact of Speed Limits and Road Characteristics on Free-Flow Speed in Urban Areas","authors":"A. Silvano, K. Bang","doi":"10.1061/(ASCE)TE.1943-5436.0000800","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000800","url":null,"abstract":"The paper documents studies of posted speed limit (PSL) changes on the free-flow speed on urban roads. Before and after field measurements were conducted, changing the existing PSL from 50 to 40 or 60 km/h. The analysis was conducted on the mean free-flow speed difference and speed variability. The data collected were also used for multiple regression analysis, including PSL changes and selected self-explaining road characteristics. The results showed that a decreased PSL caused a small (1.6 km/h) but significant reduction in the mean free-flow speed and speed variance, which might lead to a 10% reduction of severe injury accidents. Furthermore, the PSL reduction had a larger impact on faster drivers and higher road network classes. Conversely, an increased PSL resulted in a 2.6 km/h increase in the mean free-flow speed but no change on speed variability. The regression results indicated that the free-flow speed was heavily influenced by road characteristics, such as carriageway width, road environments, and the presence of on-street parking and sidewalks. Arterial roads presented the largest impact. The PSL had a relatively small impact.","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129628212","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: 24

Determination of Passenger-Car Units on Two-Lane Intercity Highways under Heterogeneous Traffic Conditions 异构交通条件下双车道城际公路乘用车单元的确定

Journal of Transportation Engineering-asce Pub Date : 2016-02-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000809

Mohammad Hosein Mardani Nokandeh, I. Ghosh, S. Chandra

引用次数: 20

Effort allocation in rural road safety analysis under data-limited conditions 数据有限条件下农村道路安全分析的力量分配

Journal of Transportation Engineering-asce Pub Date : 2016-02-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000814

T. Bačkalić, D. Jovanović, S. Bačkalić

{"title":"Effort allocation in rural road safety analysis under data-limited conditions","authors":"T. Bačkalić, D. Jovanović, S. Bačkalić","doi":"10.1061/(ASCE)TE.1943-5436.0000814","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000814","url":null,"abstract":"Traffic safety policy defines plans that are expressed using numerical values for the planned level of improvement. The directing or apportioning of efforts represents the initial step of planned improvements. If a road is observed as a system of sections, the sections should be prioritized, selected, and investigated according to precise enhancement requests. A temporal approach to road safety analysis enables the application of reliability reallocation theory. The individual application of certain reliability reallocation methods may yield results that are unusable for a road authority in some situations. This paper describes a method that is based on a judicious combination of acceptable features of two reliability reallocation methods [the aeronautical radio incorporated (ARINC) and the minimum effort algorithm] in different iterations. This method enables the possibility of setting a precisely expressed goal with a minimal set of input values to obtain quality and applicable results for a decision maker. The presented approach represents an improvement in the field of road safety decision-making support and is transferable to other areas of transportation engineering and effort allocation. Language: en","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116863770","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

Vehicle speed and acceleration profile study for metered on-ramps in California 加州计量匝道车辆速度和加速度剖面研究

Journal of Transportation Engineering-asce Pub Date : 2016-02-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000817

Guangchuan Yang, Hao Xu, Z. Tian, Zhongren Wang

{"title":"Vehicle speed and acceleration profile study for metered on-ramps in California","authors":"Guangchuan Yang, Hao Xu, Z. Tian, Zhongren Wang","doi":"10.1061/(ASCE)TE.1943-5436.0000817","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000817","url":null,"abstract":"Ramp metering has been proven as an effective freeway-management strategy; however, one of the critical challenges in design and operation of ramp metering is the lack of up-to-date design guidance for acceleration lanes. This paper aims to investigate the actual acceleration characteristics for metered on-ramps with various geometric features and also figure out speed profiles to guide the design of acceleration-lane length. A piecewise-constant acceleration model, which assumes vehicles making uniformly accelerated motion within each short space or time interval, was employed to model vehicle acceleration characteristics. The approach of using distance versus speed profiles for acceleration-length design was also introduced. RESULTS show that acceleration rate at metered on-ramps is not constant; vehicles usually accelerate at a higher acceleration rate when speed is lower and vice versa. It was observed that taper ramps usually produce higher acceleration rates than ramps with an auxiliary lane, and existing acceleration length would also affect drivers' acceleration behavior. Finally, this study pointed out that the acceleration performance data documented in the AASHTO Green Book, which are now widely employed by several state DOTs in the United States as acceleration length design guidance for metered on-ramps, is approximately 1.7 times greater than the value measured at typical taper-type metered on-ramp in California. Language: en","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124309976","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: 23

Nonlinear Safety Analysis of a Running Road Vehicle under a Sudden Crosswind 突然侧风作用下道路车辆行驶的非线性安全分析

Journal of Transportation Engineering-asce Pub Date : 2016-02-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000813

Bin Wang, You‐lin Xu, Yongle Li

引用次数: 11

Effectiveness Analyses of Flexible Pavement Preventive Maintenance Treatments with LTPP SPS-3 Experiment Data 基于LTPP SPS-3试验数据的柔性路面预防性养护处理效果分析

Journal of Transportation Engineering-asce Pub Date : 2016-02-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000818

Hongren Gong, Qiao Dong, Baoshan Huang, Xiaoyang Jia

引用次数: 28

Random Regret Minimization and Random Utility Maximization in the Presence of Preference Heterogeneity: An Empirical Contrast 偏好异质性下的随机后悔最小化与随机效用最大化:实证对比

Journal of Transportation Engineering-asce Pub Date : 2016-01-19 DOI: 10.1061/(ASCE)TE.1943-5436.0000827

D. Hensher, W. Greene, Chinh Q. Ho

{"title":"Random Regret Minimization and Random Utility Maximization in the Presence of Preference Heterogeneity: An Empirical Contrast","authors":"D. Hensher, W. Greene, Chinh Q. Ho","doi":"10.1061/(ASCE)TE.1943-5436.0000827","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000827","url":null,"abstract":"Random regret minimization (RRM) interpretations of discrete choices are growing in popularity as a complementary modeling paradigm to random utility maximization (RUM). While behaviorally very appealing in the sense of accommodating the regret of not choosing the best alternative, studies to date suggest that the differences in willingness to pay estimates, choice elasticities, and choice probabilities compared to RUM are small. However, the evidence is largely based on a simple multinomial logit (MNL) form of the RRM model. This paper revisits this behavioral contrast and moves beyond the multinomial logit model to incorporate random parameters, revealing the presence of preference heterogeneity. The important contribution of this paper is to see if the extension of RRM-MNL to RRM-mixed logit in passenger mode choice widens the behavioral differences between RUM and RRM. The current paper has identified a statistically richer improvement in fit of mixed logit compared to multinomial logit under RRM (and RUM) but found small differences overall between the empirical outputs of RUM and RRM, with no basis of an improved model fit between these two nonnested model forms. The inclusion of both model forms should continue to inform the likely range of behavioral outputs during investigation of a broader range of process heuristics designed to capture real world behavioral response.","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129073115","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: 25