Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 2041-2060 of 4147
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Development of Maglev Guideway Loading Model
(American Society of Civil Engineers, 2011)Magnetic levitation (maglev) has already captured the demanding eyes of worldwide transportation networks. However, there is hardly any report of practical algorithms for systematic calculations of loading on guideways of ... -
CTCS-2I: New Train Control System Suitable for Trains with Speeds up to 350 km/h
(American Society of Civil Engineers, 2011)This paper presents a new Chinese Train Control System (CTCS), the CTCS-2I, for trains traveling up to -
Centerline Rumble Strips: Study of External Noise
(American Society of Civil Engineers, 2011)Centerline rumble strips (CLRS) are patterns installed on the center of undivided, two-lane highways. Their main function is to alert drivers by producing noise and vibration. This treatment has been demonstrated to be ... -
Vehicle Dynamic Safety in Measured Rough Pavement
(American Society of Civil Engineers, 2011)Dynamic vehicle behavior is used to identify safe traffic speed limits. The proposed methodology is based on the vehicle vertical wheel contact force response excited by measured pavement irregularities on the frequency ... -
Behavioral Model to Understand Household-Level Hurricane Evacuation Decision Making
(American Society of Civil Engineers, 2011)Hurricanes are one of the most costly natural disasters in the United States and have increased in frequency in the last few years. The critical role of evacuation, particularly for the vulnerable communities, has been ... -
Gap Acceptance at Priority-Controlled Intersections
(American Society of Civil Engineers, 2011)Critical gap is the threshold by which drivers in the minor stream judge whether to accept a gap. If the gap is larger than critical gap, drivers accept it and enter the intersection; otherwise, drivers reject the gap and ... -
Analysis and Evaluation of Double-Ended Flat-Shunted Yard Performance Employing Two Yard Crews
(American Society of Civil Engineers, 2011)The yards are facilities that reassemble inbound freight train cars into outbound freight trains. These facilities play an essential role for providing the freight transportation service by rail, however, they are nonrevenue ... -
Analysis and Modeling of Crossing Behavior at Urban Intersections in China
(American Society of Civil Engineers, 2011)Crossing behaviors at intersections are conventionally described through the gap acceptance theory; however, many gap-forcing behaviors exist at Chinese urban intersections. In this study, gap-forcing behaviors were analyzed ... -
Mechanistic-Empirical IRI Model Accounting for Potential Bias
(American Society of Civil Engineers, 2011)The roughness prediction models in the International Roughness Index (IRI) currently incorporated into the Mechanistic-Empirical Pavement Design Guide (M-E PDG) have been developed by means of ordinary least squares (OLS). ... -
Analysis of Dynamic Behavior for Slab Track of High-Speed Railway Based on Vehicle and Track Elements
(American Society of Civil Engineers, 2011)Slab tracks are used worldwide in high-speed railways. The slab may be cast in situ, resulting in a continuous length of concrete, or it may be constructed in discrete precast sections laid end to end. According to structural ... -
Development and Validation of Arrival-Based Uniform Delay Models for Oversaturated Signalized Intersections
(American Society of Civil Engineers, 2011)This paper developed new uniform delay models for multiregime oversaturated traffic conditions at signalized intersection. Separate models were developed for each AT and then general models were obtained. The models directly ... -
Evaluation of Usability of IntelliDrive Probe Vehicle Data for Transportation Systems Performance Analysis
(American Society of Civil Engineers, 2011)This paper assesses various issues associated with the use of IntelliDrive probe vehicle data generated according to existing protocols. These evaluations are conducted using a virtual IntelliDrive probe vehicle data ... -
Uncertainty in Rail-Track Geometry Degradation: Lisbon-Oporto Line Case Study
(American Society of Civil Engineers, 2011)This paper analyzes rail-track geometry degradation and uncertainty related to the phenomenon on the basis of the inspection of car records from recently upgraded sections of the Lisbon-Oporto line. Statistical analysis ... -
Development of Accident Modification Factors for Rural Frontage Road Segments in Texas Using Generalized Additive Models
(American Society of Civil Engineers, 2011)The objective of this study consists of assessing the application of generalized additive models (GAMs) for estimating accident modification factors (AMFs). GAMs are a new type of models that have been recently introduced ... -
Specification of Obstacles in the Longitudinal Road Profile by Median Filtering
(American Society of Civil Engineers, 2011)Separation of large obstacles from longitudinal road profiles using median filtering is presented. Detailed testing of this method confirms its ability to remove large obstacles without corrupting the random component of ... -
Dielectric Modeling of Asphalt Mixtures and Relationship with Density
(American Society of Civil Engineers, 2011)The paper is aimed at investigating the dielectric response of the dense-graded hot-mix asphalt mixture (HMA) using an open-ended coaxial probe technique over a wide frequency range. The effects of asphalt content, air ... -
Setting Speed Limits on Rural Two-Lane Highways by Modeling the Relationship between Expert Judgment and Measurable Roadside Characteristics
(American Society of Civil Engineers, 2011)Over recent years it has been assumed that posted speed limits should consider an integrated set of requirements such as the built-in road environment and the presence and characteristics of its users. In the present paper ... -
Methodology to Identify Optimal Placement of Point Detectors for Travel Time Estimation
(American Society of Civil Engineers, 2011)The purpose of this research was to develop a decision support methodology to identify the optimal locations of a finite set of point detectors on a freeway corridor to minimize the error in travel time estimation. The ... -
Innovative Algorithm to Solve Axisymmetric Displacement and Stress Fields in Multilayered Pavement Systems
(American Society of Civil Engineers, 2011)This paper presents an innovative algorithm to calculate the displacement and stress fields within a multilayered pavement system using layered elastic theory and Hankel and Laplace integral transforms. In particular, a ... -
Predicting Pavement Marking Retroreflectivity Using Artificial Neural Networks: Exploratory Analysis
(American Society of Civil Engineers, 2011)Providing adequate nighttime visibility to roadway users is an important consideration for state and local transportation agencies. Driving at night is less dangerous when pavement markings are easily discernable. ...