Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 1301-1320 of 4147
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Evaluation and Comparison of Real-Time Laser and Electric Sand-Patch Pavement Texture-Depth Measurement Methods
(American Society of Civil Engineers, 2016)In order to measure the texture depth of asphalt pavement automatically and accurately, a data set generated by a real-time laser pavement texture meter (RLPTM) was realized, and a calculation method was developed. Three ... -
Evaluation of 3D Automated Systems for the Measurement of Pavement Surface Cracking
(American Society of Civil Engineers, 2016)Pavement management systems rely on accurate distress measurements to support transportation agency officials in making decisions on budget planning and allocation as well as on the design of maintenance and rehabilitation ... -
Decision Support Systems for Real-World High-Speed Rail Planning
(American Society of Civil Engineers, 2016)The selection of the macrolocation of new high-speed rail (HSR) systems during the planning stage affects the associated infrastructure costs. The process is influenced by the complex interaction between the HSR alignment, ... -
k-Nearest Neighbor Model for Multiple-Time-Step Prediction of Short-Term Traffic Condition
(American Society of Civil Engineers, 2016)One of the most critical functions of an intelligent transportation system (ITS) is to provide accurate and real-time prediction of traffic condition. This paper develops a short-term traffic condition prediction model ... -
Random Effect Models to Predict Operating Speed Distribution on Rural Two-Lane Highways
(American Society of Civil Engineers, 2016)This paper presents the results obtained from the estimation of free-flow speed on two-lane rural highways. The data used for the analysis were collected in Northwest Italy using video cameras and a laser speed gun. The ... -
Roundabout System Capacity Estimation and Control Strategy with Origin-Destination Pattern
(American Society of Civil Engineers, 2016)This study investigates the roundabout as a system in which the interaction of inflow, outflow, and circular flow are analyzed. Developed based on the concept of Macroscopic Fundamental Diagram (MFD), the macroscopic ... -
Modeling the Effects of Rainfall Intensity on the Heteroscedastic Traffic Speed Dispersion on Urban Roads
(American Society of Civil Engineers, 2016)The heteroscedasticity refers to a collection of random variables with a subpopulation that have different dispersions from others. The variable dispersion could be quantified by measures of statistical dispersion such as ... -
Robust Deflection Indices from Traffic-Speed Deflectometer Measurements to Predict Critical Pavement Responses for Network-Level Pavement Management System Application
(American Society of Civil Engineers, 2016)Traffic-speed deflectometers (TSD) are used in several countries to evaluate the pavement structural condition at the network level. Fatigue and rutting strains are commonly used as pavement critical responses in ... -
Challenges in Developing a Transportation Sustainability Rating System That Meets the Preferences of a Department of Transportation
(American Society of Civil Engineers, 2016)Increasingly, sustainability is a key indicator for planning transportation projects. As a result, evaluating the applicability of various transportation sustainability rating systems (TSRS) for adoption is important for ... -
Measuring the Sustainability of Shared-Use Paths: Development of the GreenPaths Rating System
(American Society of Civil Engineers, 2015)The application of sustainable performance measures continues to increase with the development of sustainable rating systems such as leadership in energy and environmental design (LEED), as well as transportation-focused ... -
Field Evaluations of an Adaptive Traffic Signal—Using Private-Sector Probe Data
(American Society of Civil Engineers, 2016)This study evaluated the in-service performance of the InSync adaptive signal control (ASC) system utilizing field data collected from the private sector travel time vendor INRIX. A total of six corridors in Virginia were ... -
Dynamic Interaction of Vehicle and Discontinuous Slab Track Considering Nonlinear Hertz Contact Model
(American Society of Civil Engineers, 2016)This paper develops a new two-dimensional numerical model of vehicle/discontinuous slab track dynamic interaction. The vehicle is simulated as a multibody system with 10 degrees of freedom. The slab track is represented ... -
Reliability Analysis of Left-Turn Sight Distance at Signalized Intersections
(American Society of Civil Engineers, 2016)The current method for the analysis of sight distance for left-turn vehicles at signalized intersections assumes that all component variables are deterministic. This paper presents a probabilistic approach based on such ... -
Safety Effectiveness of Centerline Plus Shoulder Rumble Strips on Two-Lane Rural Roads
(American Society of Civil Engineers, 2016)The combined application of centerline and shoulder rumble strips is intended to reduce the frequency of crashes by alerting drivers that they are about to leave the traveled lane. To date, this combination treatment has ... -
Simulation of Bicycle-Riding Smoothness by Bicycle Motion Analysis Model
(American Society of Civil Engineers, 2015)This study focuses on the development of equipment for measuring riding smoothness along bicycle routes. In addition, a bicycle motion analysis model was also developed and verified for conducting effective and efficient ... -
Thornthwaite Moisture Index Modeling to Estimate the Implication of Climate Change on Pavement Deterioration
(American Society of Civil Engineers, 2016)The objectives of this study are to simulate the Thornthwaite moisture index (TMI) for zones within the Atlantic provinces of Canada (APC) during three 30-year periods in the 21st century and to estimate the interactive ... -
Safety Performance Function Development for Analysis of Bridges
(American Society of Civil Engineers, 2015)Bridges are an integral infrastructure component and, as such, have been the subject of extensive research efforts related to structural performance. However, there has been little study on the traffic safety performance ... -
Improvement of Axle Load Spectra Characterization by a Mixture of Three Distributions
(American Society of Civil Engineers, 2015)Traffic is one of the most important variables used in pavement design methods. There are currently two methods for characterizing wheel load repetitions: equivalent single axle load (ESAL) and load spectra, which is a ... -
Methodology to Improve the AASHTO Subgrade Resilient Modulus Equation for Network-Level Use
(American Society of Civil Engineers, 2015)Falling weight deflectometer (FWD) testing is commonly used to estimate subgrade resilient modulus ( -
Application of Maximum Entropy Sampling Design to Traveler Information System Data-Quality Evaluations
(American Society of Civil Engineers, 2015)Evaluation of travel-time data quality from traveler information systems (TISs) is a critical need for many transportation agencies. To measure data quality, observations of ground-truth travel time must be collected on ...