Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 2001-2020 of 4147
-
Nonlinear Mixed-Effects Model for the Evaluation and Prediction of Pavement Deterioration
(American Society of Civil Engineers, 2012)Pavement deterioration models are important inputs for pavement management systems (PMS). These models are based on the study of performance data, and they provide the evolution law of pavement deterioration. Performance ... -
Formulation, Structure, and Analysis of a Model to Optimize Staffing Levels at Border Checkpoints
(American Society of Civil Engineers, 2011)This paper formulates, structures, and analyzes a model to optimize the staffing levels at a border checkpoint from the perspective of a person in charge of staffing, accounting for both wage costs for staff and border ... -
Design of Optimal Perpetual Pavement Structure
(American Society of Civil Engineers, 2012)In this study, combinations of layer, stiffness, and thickness that produce an optimal perpetual pavement are determined for implementation on New Mexico State highways. Using a number of trial designs in the Mechanistic-Empirical ... -
Optimization of a Prestressed Concrete Railroad Crosstie for Heavy-Haul Applications
(American Society of Civil Engineers, 2011)In response to rising energy costs, there is increased demand for efficient and sustainable transportation of people and goods. One source of such transportation is the railroad. To accommodate the increased demand, railroads ... -
Category of Derailment Mechanism and Prevention for High-Speed Vehicle
(American Society of Civil Engineers, 2011)Vehicle derailment is difficult to explore because accidents are caused by many factors. In this paper, derailment behaviors are divided into three categories: friction-type derailment, structure-type derailment, and ... -
Dealing with Error Recovery in Traffic Flow Prediction Using Bayesian Networks Based on License Plate Scanning Data
(American Society of Civil Engineers, 2011)This paper deals with the error recovery problem when scanned license plate data are used to predict traffic flows. The aim is to reduce the effects of errors owing to lost plates or mistaken transcription, to improve ... -
Temperature Gradient and Curling Stresses in Concrete Pavement with and without Open-Graded Friction Course
(American Society of Civil Engineers, 2011)Curling stresses of concrete pavement can be very damaging, and reducing the temperature swings would be very beneficial. This study includes a field instrumentation effort with pavement temperature sensors to quantify the ... -
Impact Quantification of Wide-Base Tire Loading on Secondary Road Flexible Pavements
(American Society of Civil Engineers, 2011)There is a need to evaluate the damage caused by the new generation of wide-base tires on low-volume secondary roads because of their increased use on trucks. In this study, a three-dimensional (3D) finite-element (FE) ... -
Sustainability Enhancement Tool for State Departments of Transportation Using Performance Measurement
(American Society of Civil Engineers, 2011)The goal of this paper was to develop a performance measurement–based approach for transportation agencies, such as state departments of transportation, to evaluate and enhance sustainability. This research proposes a ... -
Analysis of Freeway Travel Time Variability Using Bluetooth Detection
(American Society of Civil Engineers, 2011)Travel time has long been an important performance measure for assessing traffic conditions and the extent of highway congestion. However, recently, more and more attention has been given to understanding the uncertainty ... -
Optimal Train Operation for Minimum Energy Consumption Considering Track Alignment, Speed Limit, and Schedule Adherence
(American Society of Civil Engineers, 2011)Developing an optimal train speed profile for energy-efficient train operation is significant in both theory and applications but very difficult and complex to achieve. An optimization method that minimizes energy consumption ... -
Design Implications of Walking Speed for Pedestrian Facilities
(American Society of Civil Engineers, 2011)Pedestrians walk differently on different types of facilities. Walking speeds are governed not only by the width of the facility but also by age and gender, land uses, temporal variations, cell phone usage, carrying baggage ... -
Conditional Quantile Analysis for Crash Count Data
(American Society of Civil Engineers, 2011)Crashes are important evidence for identifying deficiencies existing in highway systems, but they are random and rare. The investigation of the nature of the problem normally draws on crashes collected over a multiyear ... -
Climate Change and Sustainable Transportation: The Case of California
(American Society of Civil Engineers, 2011)California has adopted innovative legislation to tackle climate change. Energy-efficient buildings, lower-emissions industrial processes, and more fuel-efficient transportation vehicles operating on cleaner fuels are among ... -
Comprehensive Decision Support Framework for Strategic Railway Capacity Planning
(American Society of Civil Engineers, 2011)The potential growth of railway traffic is expected to be substantial worldwide; hence, railway companies and agencies are looking for better tools to allocate their capital investments to capacity planning in the best ... -
Precision Test of Cracking Surveys with the Automated Distress Analyzer
(American Society of Civil Engineers, 2011)In the last few years, there have been rapid developments and advances of technologies for pavement cracking surveys for both data acquisition and data interpretation. Although the high-speed and objective means of automated ... -
Mode of Flashing for Malfunctioning Traffic Signals
(American Society of Civil Engineers, 2011)This paper presents the analysis of traffic operations at 34 instances of yellow/red malfunction flash and nine instances of red/red malfunction flash in the Atlanta area. Malfunction flash occurs when a traffic signal’s ... -
Pavement Condition Assessment Using Fuzzy Logic Theory and Analytic Hierarchy Process
(American Society of Civil Engineers, 2011)This paper integrates the advantages of the analytic hierarchy process (AHP) and fuzzy logic theory and develops a new approach for pavement condition assessment and project prioritization. Roughness, deflection, surface ... -
Determining Peak Hour Factors for Capacity Analysis
(American Society of Civil Engineers, 2011)Considering the peaking effect over a short time period is important because queuing might build up and take substantial time to discharge. Traditionally, the peak-hour factor has been used to quantify such a peaking effect. The -
Analytical Method for Estimating the Impact of Transit Signal Priority on Vehicle Delay
(American Society of Civil Engineers, 2011)Transit agencies seeking to improve transit service delivery are increasingly considering the deployment of transit signal priority (TSP). However, the impact of TSP on transit service and on the general traffic stream is ...