Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 2181-2200 of 4147
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Load Transfer Characteristics of Dowel Bar System in Jointed Concrete Pavement
(American Society of Civil Engineers, 2009)In a jointed concrete pavement, the dowel bar system and the aggregate interlock are two mechanisms for transferring wheel loads from one panel to the adjacent panel. The aggregate interlocking load transfer mechanism is ... -
Diesel Particulate Matter Number Emissions: Evaluation of Existing Modal Emission Modeling Approaches
(American Society of Civil Engineers, 2010)Recent health and exposure studies have indicated that emissions and air quality standards of particulate matters (PM) numbers could be beneficial since they account for the more harmful ultrafine particles that have ... -
Detection of Vehicles with Studded Tires Using Acoustic Emission Sensors Mounted to Highway Bridges
(American Society of Civil Engineers, 2010)Transportation agencies expend large amounts of money annually to maintain highway wearing surfaces. Wear depends mainly on axle weight, vehicle speed, temperature, surface type, and the type of tires mounted on vehicles. ... -
Stochastic Dilemma Hazard Model at High-Speed Signalized Intersections
(American Society of Civil Engineers, 2010)Dilemma zone (DZ) is an area where drivers can neither stop comfortably nor cross safely when they are presented with a yellow indication at an intersection. The DZ problem is a leading cause for crashes at high-speed ... -
Older Drivers’ Perception and Acceptance of In-Vehicle Devices for Traffic Safety and Traffic Efficiency
(American Society of Civil Engineers, 2010)A multitude of new technologies (ranging from guidance systems to speed-limit exceeding systems and to fatigue detection systems) are emerging, many of which are either explicitly targeted to older drivers or expected to ... -
Concept and Spatial Analysis Method of Urban Environmental Traffic Capacity
(American Society of Civil Engineers, 2009)A method to determine the intensity of traffic is a key issue for the control of air pollution from urban transport in order to meet air quality requirements. In this study, by combining the definitions of environmental ... -
Calibration and Verification of SHAKER, a Deterministic Toll Plaza Simulation Model
(American Society of Civil Engineers, 2010)A great deal of research has been conducted on Central Florida toll roads to better understand the characteristics of the tolling operation. In this paper, the use of the toll plaza queuing model SHAKER is calibrated to ... -
Traffic Interactions between Motorized Vehicles and Nonmotorized Vehicles near a Bus Stop
(American Society of Civil Engineers, 2009)This paper studies traffic features in a mixed traffic flow composed of motorized vehicles and nonmotorized vehicles near a bus stop within a completely different framework. Our work has taken the nonlane based behaviors ... -
Annualized Road Works Cost Estimates for Unpaved Roads
(American Society of Civil Engineers, 2009)Providing locally elected officials with reasonable information about the cost of maintaining and improving an unpaved road network is part of the job for those directly responsible for maintaining such a network. This ... -
Estimation of Waviness of the Longitudinal Road Profile from Straightedge Measurement
(American Society of Civil Engineers, 2009)The paper presents a method for estimation of power spectral density (PSD) parameters (unevenness index and waviness) of a longitudinal road profile in the short wavelength band from data collected by straightedge (SE) ... -
Use of Soft Computing Applications to Model Pervious Concrete Pavement Condition in Cold Climates
(American Society of Civil Engineers, 2009)Development of an adequate performance model based on an appropriate condition index has been a major challenge for engineers particularly in case of a new type of design such as pervious concrete pavement structures (PCPSs) ... -
Highway Work Zone Risk Factors and Their Impact on Crash Severity
(American Society of Civil Engineers, 2009)Numerous factors may contribute to high-severity crashes in highway work zones. Identifying these factors and then alleviating their impact is a challenging task that traffic engineers and researchers have to confront. In ... -
Determinants of Speeding Behavior of Drivers in Al Ain (United Arab Emirates)
(American Society of Civil Engineers, 2009)Speeding behavior is a complex problem that requires a full understanding of drivers’ attitudes and beliefs. Such understanding could lead to effective design and robust interventions to improve the speeding behavior of ... -
Saskatchewan Field Case Study of Triaxial Frequency Sweep Characterization to Predict Failure of a Granular Base across Increasing Fines Content and Traffic Speed Applications
(American Society of Civil Engineers, 2009)Approximately one-third of the Saskatchewan provincial highway system is comprised of granular base structures with a thin asphaltic or double seal surfacing. Unfortunately, significant portions of the Saskatchewan thin ... -
Integrated Short-Term and Long-Term MCDM Model for Solving Location Selection Problems
(American Society of Civil Engineers, 2009)Location selection problems have become one of most popular and important issues in the transportation and logistics systems. The purpose of this paper is to propose an integrated short-term and long-term multiple-criteria ... -
Estimation of Temperature Stress and Low-Temperature Crack Spacing in Asphalt Pavements
(American Society of Civil Engineers, 2009)This paper presents an analytical approach for estimation of temperature stress in asphalt pavements. Nonlinear variation of temperature with respect to time as well as across the depth of the asphalt layer is considered. ... -
Critical Assessment of Pavement Distress Segmentation Methods
(American Society of Civil Engineers, 2010)Image segmentation is the crucial step in automatic image distress detection and classification (e.g., types and severities) and has important applications for automatic crack sealing. Although many researchers have developed ... -
Simulation of Dynamic Effects of Vehicles on Pavement Using a 3D Interaction Model
(American Society of Civil Engineers, 2009)The present study formulated a three-dimensional (3D) vehicle-pavement coupled model to simulate the pavement dynamic loads induced by the vehicle-pavement interaction where both the vehicle vibration and pavement deformation ... -
Detecting Unsafe Roadways with Spatial Statistics: Point Patterns and Geostatistical Models
(American Society of Civil Engineers, 2010)A detection scheme that uses classical and spatial statistics has been developed to identify roadways with the most severe safety needs. It is based on the null hypothesis that all roadways have the same crash risk, that ... -
Validated Mechanistic Model for Geogrid Base Reinforced Flexible Pavements
(American Society of Civil Engineers, 2009)A mechanistic response model was recently developed at the University of Illinois to analyze geogrid base reinforced flexible pavements designed for low to moderate traffic volumes with a relatively thin hot-mix asphalt ...