Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 941-960 of 4147
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Influence of Calibration Factors on Crash Prediction on Rural Two-Lane Two-Way Roadway Segments
(American Society of Civil Engineers, 2019)Calibration factors are applied in the Highway Safety Manual predictive method for rural two-lane, two-way roadway segments to adjust the estimate for local conditions. This research aims to evaluate and recommend improvements ... -
Cooperative Merging Strategy for Connected Vehicles at Highway On-Ramps
(American Society of Civil Engineers, 2019)As traffic demands increase rapidly on highways, effective merging strategies are necessary to cooperate with intelligent vehicles and improve traffic operations. Existing merging algorithms for connected vehicles rarely ... -
Estimating Queue Length for Contraflow Left-Turn Lane Design at Signalized Intersections
(American Society of Civil Engineers, 2019)An unconventional left-turn treatment called contraflow left-turn lane (CLL) design has been increasingly used in China to relieve traffic congestion associated with left-turn movements at signalized intersections. This ... -
Modeling Speed and Comfort Threshold on Horizontal Curves of Rural Two-Lane Highways Using Naturalistic Driving Data
(American Society of Civil Engineers, 2019)Modeling efforts for driver behavior parameters on horizontal curves have mostly focused only on the 85th percentile value. However, predicting whole distributions would help improve alignment design by allowing reliability-based ... -
Applying Probabilistic Model to Quantify Influence of Rainy Weather on Stochastic and Dynamic Transition of Traffic Conditions
(American Society of Civil Engineers, 2019)This study used a time-varying Markov chain (TMC) assumption to develop an empirical probabilistic model that evaluates the influence of rainy weather and traffic volume on the dynamic transition of traffic conditions. The ... -
Cell Transmission Model for Mixed Traffic Flow with Connected and Autonomous Vehicles
(American Society of Civil Engineers, 2019)The cell transmission model (CTM) is important for solving macroscopic traffic problems. Although some studies have been conducted for multiclass CTM, a simplified CTM for traffic flow mixed with connected and autonomous ... -
Analysis of Pedestrian Conflict with Right-Turning Vehicles at Signalized Intersections in India
(American Society of Civil Engineers, 2019)The interaction between pedestrians and right-turning vehicles at a signalized intersection is a usual scenario in urban locations in which both have to share a common space on the road. Due to the rapid growth of vehicular ... -
Deterministic and Stochastic Freeway Capacity Analysis Based on Weather Conditions
(American Society of Civil Engineers, 2019)In this paper, a fundamental diagram is calibrated for observed traffic data on a freeway segment using triangular regression analysis and the fixed capacity of the freeway is derived. Stochastic capacity analysis is then ... -
Review of Methods for Estimation of Passenger Car Unit Values of Vehicles
(American Society of Civil Engineers, 2019)Estimation of passenger car unit (PCU) values is very important for traffic capacity analysis and other relevant applications such as level of service (LOS) measures, determination of saturation flow rate, signal design ... -
Driver Response to Variable Speed Limits on I-66 in Northern Virginia
(American Society of Civil Engineers, 2019)Variable speed limits (VSLs) are components of active traffic management (ATM) systems that are increasingly being used as safety and operational treatments in urban areas. Studies have shown safety and operational benefits ... -
Dynamic Four-Step Planning Model of Empty Repositioning Trips for Personal Autonomous Vehicles
(American Society of Civil Engineers, 2019)Autonomous vehicles (AVs) offer new technologies that could revolutionize travel, such as greater link capacity and innovative intersection controls. One such traveler behavior is the potential for empty repositioning ... -
Reviewers
(American Society of Civil Engineers, 2019) -
Rail Pad Stiffness and Classification System
(American Society of Civil Engineers, 2019)The aim of this paper is to design rail pad stiffness in terms of a general desirability range and to suggest a classification system. The design is based on an analysis of the effect of rail pad stiffness on key track ... -
Large-Scale Full-Coverage Traffic Speed Estimation under Extreme Traffic Conditions Using a Big Data and Deep Learning Approach: Case Study in China
(American Society of Civil Engineers, 2019)For both travelers and traffic operation centers, especially under extremely large traffic volumes, full-coverage traffic state monitoring of a major corridor is urgently needed. In the present paper, a traffic speed ... -
Simultaneous Bus Transit Route Network and Frequency Setting Search Algorithm
(American Society of Civil Engineers, 2019)A simultaneous bus route network design and frequency setting model is formulated as the weighted sum multiobjective genetic algorithm optimization. It aims to search for a near-optimum set of routes and corresponding ... -
Real-Time Visualization Method for Estimating 3D Highway Sight Distance Using LiDAR Data
(American Society of Civil Engineers, 2019)Light detection and ranging (LiDAR) data provide a rather precise depiction of the real three-dimensional (3D) road environment and have been used by some researchers to produce more precise available sight distance (ASD) ... -
Optimal Variable Speed Limit Control in Connected Autonomous Vehicle Environment for Relieving Freeway Congestion
(American Society of Civil Engineers, 2019)This study presents an optimal variable speed limit (VSL) strategy in a connected autonomous vehicle (CAV) environment for a freeway corridor with multiple bottlenecks. The VSL control was developed by using an extended ... -
Analysis of Bus Speed Using a Multivariate Conditional Autoregressive Model: Contributing Factors and Spatiotemporal Correlation
(American Society of Civil Engineers, 2019)Bus speed indicates the performance of bus systems. Exploring the impact of contributing factors to bus speed can provide public transit agencies insights into developing improvement strategies. Bus speed observations can ... -
Ranking Urban Catchment Areas according to Service Condition of Walk Environment
(American Society of Civil Engineers, 2019)The article presents a method for ranking various catchment areas of an urban area according to their current service condition of the walk environment and their improvement needs. The study proposes a rationally appealing ... -
Modeling Lane-Choice Behavior to Optimize Pricing Strategy for HOT Lanes: A Support Vector Regression Approach
(American Society of Civil Engineers, 2019)High-occupancy toll (HOT) lanes can better utilize road resources by allowing low-occupancy vehicle (LOV) drivers to pay a toll and use high-occupancy vehicle (HOV) lanes. In such a system, the toll price plays a key role ...