Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 2421-2440 of 4147
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Reducing Treatment Selection Bias for Estimating Treatment Effects Using Propensity Score Method
(American Society of Civil Engineers, 2007)Treatment selection bias leads to an inaccurate estimation of treatment effects as applied to specific sites or problem locations. Treatment selection bias is a major source of inconsistency in the results obtained from ... -
Passing Opportunities at Slow-Vehicle Bays
(American Society of Civil Engineers, 2007)Recently ways of assessing the need for and providing for improved passing opportunities on rural two-lane (single-carriageway) highways has been investigated in New Zealand. This paper focuses on studies of the performance ... -
Generalized Capacity Estimation Model for Weaving Areas
(American Society of Civil Engineers, 2007)Weaving areas are one of the major highway facilities that have long been investigated by researchers. Their capacities are currently estimated based on the density -
Estimating the Effects of Traffic Congestion on Fuel Consumption and Vehicle Emissions Based on Acceleration Noise
(American Society of Civil Engineers, 2007)While significant progress has occurred in quantifying congestion costs within the sphere of traffic engineering, little progress has been made to incorporate such costs into network-level highway evaluation systems. The ... -
Subgrade Design Parameters from Samples Prepared with Different Compaction Methods
(American Society of Civil Engineers, 2007)The standard and modified Proctor compaction tests have been widely used for evaluation of design properties and compaction characteristics of subgrade soils. However, different types of compaction roller equipment, each ... -
Dynamic Prediction Model of As-Built Roughness in Asphaltic Concrete Pavement Construction
(American Society of Civil Engineers, 2007)This paper develops a dynamic prediction model of a highway pavement contractor’s quality-based performance using a panel (longitudinal) data analysis. This panel data modeling uses as-built roughness measurements and ... -
Field Evaluation of Roundabout Turning Movement Estimation Procedures
(American Society of Civil Engineers, 2007)Tracking vehicles through roundabouts is laborious. Because of this, turning movement volumes are usually estimated using a variety of methods. This paper identifies and evaluates practical methods of estimating turning ... -
Investigation of the Performance of Wireless Location Technology-Based Traffic Monitoring Systems
(American Society of Civil Engineers, 2007)As transportation agencies seek to better manage and operate the transportation system, there is an increasing need for traffic condition data across the roadway network. Wireless location technology (WLT)-based traffic ... -
Bayesian Time-Series Model for Short-Term Traffic Flow Forecasting
(American Society of Civil Engineers, 2007)The seasonal autoregressive integrated moving average (SARIMA) model is one of the popular univariate time-series models in the field of short-term traffic flow forecasting. The parameters of the SARIMA model are commonly ... -
Review of The Future of Automated Freight Transport: Concepts, Design, and Implementation by Rob Konings, Hugo Priemus, and Peter Nijkamp
(American Society of Civil Engineers, 2007) -
Relating Axle Load Spectra to Truck Gross Vehicle Weights and Volumes
(American Society of Civil Engineers, 2007)Axle load spectra have been used to develop the mechanistic-empirical pavement design guide (M-E PDG). Use of these load spectra provides a more direct and rational approach for the analysis and design of pavement structures ... -
Using a New Zealand Performance Specification to Evaluate U.S. Chip Seal Performance
(American Society of Civil Engineers, 2007)This paper reports the results of a chip seal research project in Texas where the researchers are using both quantitative and qualitative means to evaluate chip seal performance on rural roads. The team is making specific ... -
Discussion of “3D Calculation of Stopping-Sight Distance from GPS Data” by Girish Nehate and Malgorzata Rys
(American Society of Civil Engineers, 2007) -
Applicability of the International Roughness Index as a Predictor of Asphalt Pavement Condition1
(American Society of Civil Engineers, 2007)This note establishes the relationship between the surface distress of an asphalt pavement and its roughness, as conveyed respectively by the pavement condition index (PCI) and the international roughness index (IRI). The ... -
Review of Transportation Decision Making: Principles of Project Evaluation and Programming by Kumares C. Sinha and Samuel Labi
(American Society of Civil Engineers, 2007) -
Reviewers
(American Society of Civil Engineers, 2007) -
Applicability of Various Capacity Models for Single-Lane Roundabouts in Izmir, Turkey
(American Society of Civil Engineers, 2007)Although many traffic circles have been designed in Turkey, in recent years few studies have been made on the capacity and performance of roundabouts. In practice, two major problems at intersections need to be solved: ... -
Peaking Deflections of Flexible Pipe during Initial Backfilling Process
(American Society of Civil Engineers, 2007)Most thermoplastic pipes exhibit peaking behavior during the initial backfilling process. It is shown with the actual field data that the peaking deflections can be beneficial for minimizing the long-term deflections of ... -
Bayesian Degradation Modeling in Accelerated Pavement Testing with Estimated Transformation Parameter for the Response
(American Society of Civil Engineers, 2007)We discuss Bayesian degradation models that were developed for flexible pavements based on accelerated pavement testing with the heavy vehicle simulator. The models are fitted to data from the Florida Department of ... -
Lateral Vision Angles in Roadway Geometric Design
(American Society of Civil Engineers, 2007)One of the main safety factors in merging areas and at skewed intersections is lateral visibility. Two field studies have been conducted to investigate both the vision angles from rear-view mirrors and the dimensions of ...