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Detection of Delamination in the HMA Layer of Runway Pavement Structure Using Asphalt Strain Gauges 用沥青应变计检测跑道路面结构HMA层的分层
Journal of Transportation Engineering-asce Pub Date : 2016-11-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000869
Karissa Cook, N. Garg, Amarjit Singh, Murphy Flynn
{"title":"Detection of Delamination in the HMA Layer of Runway Pavement Structure Using Asphalt Strain Gauges","authors":"Karissa Cook, N. Garg, Amarjit Singh, Murphy Flynn","doi":"10.1061/(ASCE)TE.1943-5436.0000869","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000869","url":null,"abstract":"AbstractAsphalt pavement distresses like surface shoving and slippage cracking can be found at airports in areas where aircraft brake and turn, such as high-speed exits, as a result of the high surface-shear forces. Slippage failure is typically caused by the deterioration of bonding between asphalt layers (delamination), or a lack of shear resistivity within the surface-layer asphalt mix. High pavement temperatures have also been shown to contribute to slippage failures in asphalt concrete pavements. At the intersection of Runway 4 R-22 L and High-Speed Taxiway N (HST-N) at Newark Liberty International Airport (EWR), interlayer delamination was determined to be the cause of shoving and slippage cracking on the pavement surface. In 2012, asphalt strain gauges were installed during a scheduled repaving of the runway and taxiway. This paper details the components of an asphalt strain gauge instrumentation system, and analyzes the strain responses collected from the gauges installed at EWR. By identifying la...","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130263455","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
Evaluating Operational Implications of Reduced Lane and Shoulder Widths on Freeways 评估缩短高速公路车道及路肩宽度对营运的影响
Journal of Transportation Engineering-asce Pub Date : 2016-11-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000884
K. Fitzpatrick, K. Dixon, Raul E. Avelar
{"title":"Evaluating Operational Implications of Reduced Lane and Shoulder Widths on Freeways","authors":"K. Fitzpatrick, K. Dixon, Raul E. Avelar","doi":"10.1061/(ASCE)TE.1943-5436.0000884","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000884","url":null,"abstract":"AbstractAs the demand for additional capacity on urban freeways continues to increase, there is a need to better understand how to optimize the lane and shoulder configurations so as to improve capacity without adversely impacting operating speed. The overall objective for this research effort was to identify the operational implications of using reduced lane and shoulder widths on freeways. The operational analysis found speeds 3.5  km/h (2.2 mph) higher for a 3.7 m (12 ft) lane as compared to a 3.4 m (11 ft) lane. The authors developed an equation that can be used to predict speeds per lane for freeway locations with boundary conditions similar to those present in the study database.","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126514886","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: 7
Correlated Random-Effects Bivariate Poisson Lognormal Model to Study Single-Vehicle and Multivehicle Crashes 研究单车和多车碰撞的相关随机效应双变量泊松对数正态模型
Journal of Transportation Engineering-asce Pub Date : 2016-11-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000882
Xiaoxiang Ma, Suren Chen, Feng Chen
{"title":"Correlated Random-Effects Bivariate Poisson Lognormal Model to Study Single-Vehicle and Multivehicle Crashes","authors":"Xiaoxiang Ma, Suren Chen, Feng Chen","doi":"10.1061/(ASCE)TE.1943-5436.0000882","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000882","url":null,"abstract":"AbstractDeveloping crash-prediction models remains one of the primary approaches for studying traffic safety. Most of the current studies on single-vehicle (SV) and multivehicle (MV) crashes have only focused on the effects of exposure and geometric features of roadways and the effects of weather and traffic conditions are rarely incorporated. To provide more insightful observations, detailed weather and traffic data are adopted in this study. As a result of adopting detailed data, multiple daily observations are generated for SV and MV crashes on each roadway segment, forming a multivariate panel data set that poses some methodological challenges. A new approach to analyze SV and MV crashes is proposed by developing a bivariate Poisson lognormal model with correlated segment-specific random effects. The proposed model can characterize both the multivariate and panel nature of the data, and readily address the following three types of serial correlations within the multivariate panel data used in this stu...","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116115635","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: 21
Modeling the Postflood Short-Term Behavior of Flexible Pavements 洪水后柔性路面短期行为建模
Journal of Transportation Engineering-asce Pub Date : 2016-10-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000873
M. Sultana, G. Chai, T. Martin, S. Chowdhury
{"title":"Modeling the Postflood Short-Term Behavior of Flexible Pavements","authors":"M. Sultana, G. Chai, T. Martin, S. Chowdhury","doi":"10.1061/(ASCE)TE.1943-5436.0000873","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000873","url":null,"abstract":"The January 2011 flood in Queensland caused severe damage to road infrastructures, which presented new challenges for the efficient management of the roads. To date, no deterioration model can accurately predict the impact of floods on pavements. To understand the impact of the January 2011 flood on the structural performance of flood-affected pavements, falling weight deflectometer (FWD) deflection data on flood-affected roads managed by the Brisbane City Council (BCC) and Roads and Maritime Services, New South Wales (RMS, NSW), Australia, were collected and examined. This paper proposes a deterministic model that expresses structural strength of pavements as a function of time. The model predicts the short-term behavior of a flexible pavement immediately after flooding. A comparison of before- and after-flood data, and flooded and nonflooded sections of the same road, indicates a consistent trend of decrease in strength due to its sustained submergence under flood water. The literature review indicates that structural strength deterioration was also observed for the pavements in New Orleans and Louisiana following Hurricanes Katrina and Rita in 2005. However, a trend of strength gain and even, in some cases, strength loss was also observed in the BCC data, which were collected 2 and 4 years postflood. The flood-affected pavements lost their structural strength faster than the predicted deterioration rate for which the road was designed. Importantly, the proposed model would facilitate the pavement engineers to quantify the postflood rapid deterioration of the structural strength. The model is sufficiently robust and can be adapted to other regions by calibrating for the local condition.","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126016094","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: 19
Accounting for Temperature Susceptibility of Asphalt Stiffness When Designing Bonded Concrete Overlays of Asphalt Pavements 沥青路面粘结混凝土覆盖层设计中沥青刚度温度敏感性的考虑
Journal of Transportation Engineering-asce Pub Date : 2016-10-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000861
S. Sachs, J. Vandenbossche, Zichang Li, M. Barman
{"title":"Accounting for Temperature Susceptibility of Asphalt Stiffness When Designing Bonded Concrete Overlays of Asphalt Pavements","authors":"S. Sachs, J. Vandenbossche, Zichang Li, M. Barman","doi":"10.1061/(ASCE)TE.1943-5436.0000861","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000861","url":null,"abstract":"AbstractA bonded concrete overlay of asphalt (BCOA), also known as whitetopping, is a thin concrete overlay placed upon a distressed asphalt pavement. The asphalt-resilient modulus is kept constant in current BCOA design procedures. This practice results in an underestimation of the damage as compared to when the hourly temperature variation of the asphalt is considered. The framework to establish an equivalent asphalt modulus involves generating a database of hourly middepth asphalt temperatures. This database should include hourly temperatures for different BCOA structures and a large range of geographical locations representing different climatic conditions. The hourly middepth asphalt temperatures are then used to generate hourly asphalt moduli using master curves. Through fatigue equivalency, the equivalent asphalt moduli are calculated for each month. In order to establish the relationship between the asphalt modulus and middepth temperature, the United States was divided into seven different zones ...","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127178570","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: 6
Interface Damage Assessment of Railway Slab Track Based on Reliability Techniques and Vehicle-Track Interactions 基于可靠性技术和车轨相互作用的铁路板条轨道界面损伤评估
Journal of Transportation Engineering-asce Pub Date : 2016-10-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000871
Sheng-yang Zhu, C. Cai, W. Zhai
{"title":"Interface Damage Assessment of Railway Slab Track Based on Reliability Techniques and Vehicle-Track Interactions","authors":"Sheng-yang Zhu, C. Cai, W. Zhai","doi":"10.1061/(ASCE)TE.1943-5436.0000871","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000871","url":null,"abstract":"AbstractThe interface damage as one of the most critical damage issues in railway slab tracks is evaluated in this work on the basis of reliability techniques and vehicle-track interactions. First, a coupled dynamics model of a vehicle and the slab track is developed involving nonlinear spring-damper elements for simulation of the interface damage. Furthermore, considering the random nature of the damage length, the damage height, the rail pad stiffness, and the elastic modulus of cement asphalt (CA) mortar layer, explicit mathematical expressions between the input stochastic variables and output dynamic responses are obtained on the basis of the combination of the response surface method (RSM) and the dynamic simulations of vehicle-track system. Subsequently, Monte Carlo (MC) simulations are performed for the probability analysis by directly using the response surface functions. Finally, by adopting the amplification factor (AF) of the dynamic response as the control indices, the damage assessment criter...","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133764229","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: 35
Incorporating Pavement Skid Resistance and Hydroplaning Risk Considerations in Asphalt Mix Design 沥青混合料设计中路面防滑和打滑风险的考虑
Journal of Transportation Engineering-asce Pub Date : 2016-10-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000872
L. Chu, T. Fwa
{"title":"Incorporating Pavement Skid Resistance and Hydroplaning Risk Considerations in Asphalt Mix Design","authors":"L. Chu, T. Fwa","doi":"10.1061/(ASCE)TE.1943-5436.0000872","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000872","url":null,"abstract":"AbstractAn analytical framework and procedure is proposed in this paper to incorporate pavement skid resistance requirements in asphalt mix design, as part of the overall asphalt pavement design process. The concept is introduced with the aim to overcome the inadequacy of current pavement design procedures, asphalt mix design in particular, in addressing pavement-related highway functional safety requirements. Central to the concept is the use of a theoretically derived finite-element simulation model to generate the skid resistance performance curve (i.e., skid resistance–speed relationship for a given water film thickness) of a pavement surface mix design, based on the input of two skid resistance values measured at different test speeds. Three highway functional safety requirements are addressed, namely the minimum safe terminal skid resistance, the maximum braking distance allowed, and the minimum hydroplaning speed. The proposed framework comprises three main components: (1) a laboratory-accelerated ...","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123494231","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: 32
Using Profit-Maximizing Capacity Framework and Models for Railway Capacity Management 利用利润最大化运力框架和模型进行铁路运力管理
Journal of Transportation Engineering-asce Pub Date : 2016-10-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000879
Y. Lai, Yi Lin
{"title":"Using Profit-Maximizing Capacity Framework and Models for Railway Capacity Management","authors":"Y. Lai, Yi Lin","doi":"10.1061/(ASCE)TE.1943-5436.0000879","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000879","url":null,"abstract":"AbstractThe booming demand for rail services presents a challenge to railway capacity worldwide. Rail infrastructure managers are facing critical issues regarding how to efficiently utilize track resources and possibly optimize the allocation of track capacity. The traditional definition of rail capacity is usually based on the maximum number of trains that can be operated in a section of track in a given period. The unit (trains/h or trains/day) does not reflect the train types or consider the revenue generated by each train. To overcome these limitations, this research proposed a new concept, profit-maximizing capacity (PMC), and established corresponding framework and models to maximize the profit generated from capacity according to demand and system characteristics. Computational results from the case studies demonstrate that the optimal usage of the rail infrastructure can be obtained through the use of PMC framework and models. Compared to the conventional capacity management strategy, the develope...","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128021406","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
Mapping Overweight Vehicle Permits for Pavement Engineering Applications 测绘路面工程应用的超重车辆许可证
Journal of Transportation Engineering-asce Pub Date : 2016-10-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000875
N. Coley, H. Titi, V. Latifi
{"title":"Mapping Overweight Vehicle Permits for Pavement Engineering Applications","authors":"N. Coley, H. Titi, V. Latifi","doi":"10.1061/(ASCE)TE.1943-5436.0000875","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000875","url":null,"abstract":"AbstractOversize-overweight (OSOW) permit programs allow carriers to move large, heavy, and often high-value freight on state and federal highways. This study analyzed six years of Wisconsin single-trip overweight permits and two years of Iowa single-trip overweight permits to visualize routing trends, identify heavily travelled highway segments, and provide support for mechanistic-empirical pavement design guide (MEPDG) analyses and pavement reliability research. The methodology used custom visual basic for applications (VBA) scripts for text parsing and route processing with results linked to a geographic information system (GIS) database. The results allowed for visualization of permit traffic, geospatial queries of permit routes, origin-destination analyses, and identification of heavily-used permit vehicle corridors. These results have numerous applications for highway design, bridge engineering, freight trend analysis, and highway system planning. Additionally, the methodology supports the generatio...","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129032818","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: 7
Dynamic Forces at Square and Inclined Rail Joints: Field Experiments 方形和倾斜轨道节点的动力:现场实验
Journal of Transportation Engineering-asce Pub Date : 2016-09-01 DOI: 10.1061/(ASCE)TE.1943-5436.0000866
Shervan Ataei, S. Mohammadzadeh, A. Miri
{"title":"Dynamic Forces at Square and Inclined Rail Joints: Field Experiments","authors":"Shervan Ataei, S. Mohammadzadeh, A. Miri","doi":"10.1061/(ASCE)TE.1943-5436.0000866","DOIUrl":"https://doi.org/10.1061/(ASCE)TE.1943-5436.0000866","url":null,"abstract":"AbstractInsulated rail joints (IRJs) are widely used in signaling and broken rail identification systems. Track deterioration adjacent to IRJ is frequent due to excessive dynamic forces generated at IRJs by the repetitive passage of the ongoing traffic. Hence, they exhibit low service life and are considered high-risk elements and maintained through high standards. With a view to increase operational speed and the annual operational throughput, many improved structural designs have been proposed, of which inclined IRJs are the focus of this paper. To compare noise, vibration, and adjacent sleepers’ vertical displacement of square and 30° and 45° cut joints, a series of field tests have been carried out in the Tehran-Karaj urban metro track. Results show that sleepers in the vicinity of 45° cut joint have less vertical displacements compared to that of 30° and square cut joints. Peak root-mean square (RMS) values of acceleration signatures of 30 and 45° cut joints are almost half the value for square joint...","PeriodicalId":305908,"journal":{"name":"Journal of Transportation Engineering-asce","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116639798","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: 13
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