Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 1081-1100 of 4147
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Entropy-STEP Multiobjective Trade-Off Analysis Method for Optimal Transportation Investment Decisions
(American Society of Civil Engineers, 2018)The transportation decision-making process is complicated in that it often involves conflicting interests and expectations of different stakeholders. To ensure achieving sound decisions, various performance criteria in ... -
Modeling the Effects of Speed Limit, Acceleration, and Deceleration on Overall Delay and Traffic Emission at a Signalized Intersection
(American Society of Civil Engineers, 2017)This paper proposes a microscopic spatial-temporal method to capture the vehicle movement trajectories at an isolated intersection. A bi-objective programming model is presented to minimize the overall delay and emission ... -
Modeling Dynamics of Vehicle-Based Performance Measures of High-Occupancy Vehicle and General-Purpose Traffic Systems
(American Society of Civil Engineers, 2018)This study aimed at modeling dynamics of traffic systems with integrated and cointegrated stochastic processes using multiple time series of traffic flows generated by general purpose (GP) and high-occupancy vehicle (HOV) ... -
Concurrent Estimation of Origin-Destination Flows and Calibration of Microscopic Traffic Simulation Parameters in a High-Performance Computing Cluster
(American Society of Civil Engineers, 2018)This paper is aimed at developing an optimization framework for the concurrent calibration of demand and supply parameters in a dynamic traffic assignment (DTA) model. The proposed approach calibrates route choice, along ... -
Variable Speed Limit Control for Delay and Crash Reductions at Freeway Work Zone Area
(American Society of Civil Engineers, 2017)Improving operational efficiency and safety on freeway segments has long been recognized as a priority in traffic communities. This study presents a comprehensive variable speed limit (VSL) control model for reducing both ... -
Analysis of the Impact of Fog-Related Reduced Visibility on Traffic Parameters
(American Society of Civil Engineers, 2018)There are few research studies that addressed the impact of reduced visibility due to fog using real-time data. It is thus meaningful to conduct further investigation that can clearly describe the changes in driving behavior ... -
Effects of Asphalt-Mixture Characteristics and Vehicle Speed on Fuel-Consumption Excess Using Finite-Element Modeling
(American Society of Civil Engineers, 2017)The effects of pavement type on fuel consumption have received considerable attention in recent years, yet the influence of asphalt mixes characteristics and vehicle speed on fuel consumption excess has not been evaluated. ... -
Flexural Behavior of Concrete Crossties under Different Support Conditions
(American Society of Civil Engineers, 2017)Successful mapping of concrete crosstie flexural demands to different railroad track support conditions can lead to an improved understanding of crosstie flexural performance and more representative design requirements. ... -
Transit Signal Priority Experiment in a Connected Vehicle Technology Environment
(American Society of Civil Engineers, 2017)Connected vehicle (CV) technology allows developing next-generation transit signal priority (TSP) that is based on cooperation between signals (change signal timing) and buses (alter speed). In this study, a CV-based TSP ... -
Traffic Volume Benchmarks for Major Arterial Widening versus Expressway Construction: Exploratory Approach
(American Society of Civil Engineers, 2017)There exist several classes of physical interventions to address congestion at arterials, including widening (construction of additional lanes) and upgrading to expressway standards where possible. For each class of ... -
Artificial Neural Network–Based Traffic State Estimation Using Erroneous Automated Sensor Data
(American Society of Civil Engineers, 2017)Capturing real-time traffic system characteristics is a primary step in any intelligent transportation system (ITS) application. The majority of the traffic sensors used to capture real-time data have been developed for ... -
Modeling Link-Level Crash Frequency Using Integrated Geospatial Land Use Data and On-Network Characteristics
(American Society of Civil Engineers, 2017)The primary focus of this paper is to develop models to estimate link-level crash frequency using land use data extracted and integrated through the use of a distance gradient method. The on-network characteristics were ... -
Acceleration and Deceleration Calibration of Operating Speed Prediction Models for Two-Lane Mountain Highways
(American Society of Civil Engineers, 2017)In this study, to calibrate the acceleration/deceleration rates in operating speed prediction models, driving tests were performed on two-lane mountain highways using passenger cars, and continuous longitudinal acceleration ... -
Predicting the Distribution of Vehicle Travel Paths along Horizontal Curves
(American Society of Civil Engineers, 2017)Horizontal curves tend to be associated with a disproportionate number of severe crashes. Roadway departure crashes are the most frequent crash types on horizontal curves and are highly influenced by driver behavior in ... -
Improved Pedestrian Sight-Distance Needs at Railroad-Highway Grade Crossings
(American Society of Civil Engineers, 2017)This paper presents an improved model for pedestrian crossing time that is used to establish preliminary guidelines for lateral clearance needs on railroad-highway grade crossings. The improved model includes new elements ... -
Validation and Sensitivity Analysis of a Developed Midblock Vehicular Delay Model
(American Society of Civil Engineers, 2017)This paper develops and validates a deterministic model that estimates the delay incurred by platoon vehicles due to pedestrian activity at midblock crosswalks on urban street segments. The developed model is validated ... -
Threshold Radius of a Ballasted CWR Curved Track: Curve Classification
(American Society of Civil Engineers, 2017)Different codes and railways specify different maximum curvatures for their track systems. The curve-negotiating capability of the vehicle dictates the absolute minimum radius used on a track system; other factors may also ... -
Modeling Right-Turn Blockage and Approach Capacity at Signalized Intersections with Channelized Right-Turn Lanes
(American Society of Civil Engineers, 2017)Right-turn channelization is used to improve the capacity at busy intersections with a lot of right-turns. However, under heavy traffic conditions the through lane vehicles might backup and block the channelization lane. ... -
Methodology for Determining Weighted Access-Density on Two-Lane Highways: Case Study of the Republic of Serbia
(American Society of Civil Engineers, 2017)Access density is a characteristic of two-lane highway sections whose role and significance in calculating the capacity and level of service in Serbia has not yet been researched. Because of the large number of access ... -
Coordinated Ramp Metering with Equity Consideration Using Reinforcement Learning
(American Society of Civil Engineers, 2017)Reinforcement learning (RL) has been applied to solve ramp-metering problems and attracted increasing attention in recent studies. However, improving traffic efficiency is the main concern of these applications, and the ...