Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 921-940 of 4147
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Cell Transmission Modeling of Heterogeneous Disordered Traffic
(American Society of Civil Engineers, 2019)Several macroscopic approaches exist for modeling the flow of the vehicular traffic in the developed economies, from kinematic wave models using first-order or higher-order systems of partial differential equations to ... -
New Taxi–Passenger Dispatching Model at Terminal Station
(American Society of Civil Engineers, 2019)The taxi–passenger problem is more and more prominent in terminal stations; passengers usually wait in a long queue for taking a taxi in rush hour, and otherwise taxis wait in a queue for passengers. Nevertheless, there ... -
Experimental Findings about Wide Moving Jams: Case Study in Beijing
(American Society of Civil Engineers, 2019)Wide moving jams (WMJ) have been reported for over a decade in the three-phase theory. However, existing studies about wide moving jams have mostly been based on simulation data or limited empirical data. In addition, wide ... -
Estimation of Route Travel Time Distribution with Information Fusion from Automatic Number Plate Recognition Data
(American Society of Civil Engineers, 2019)Route travel time varies with vehicles and traffic demand. Besides the average route travel time, route travel time reliability in the form of travel time distribution is indispensable. However, the sample size of Complete ... -
Evaluation of Injury Severity for Pedestrian–Vehicle Crashes in Jordan Using Extracted Rules
(American Society of Civil Engineers, 2019)Pedestrian safety is a major concern throughout the world because pedestrians are considered to be the most vulnerable roadway users. This paper sought to identify the main factors in pedestrian-vehicle crashes that increase ... -
Traffic Flow Analysis at Manual Tollbooth Operation under Mixed Traffic Conditions
(American Society of Civil Engineers, 2019)Heterogeneous traffic conditions prevail in all countries across the world, but the degree of heterogeneity is different in developed and developing countries. In the United States, heavy vehicles (trucks and buses) are ... -
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 ... -
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 ... -
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 ... -
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 ... -
Turbo-Roundabout: Case Study of Driver Behavior and Kinematic Parameters of Light and Heavy Vehicles
(American Society of Civil Engineers, 2019)This research compared kinematic and behavior parameters of light and heavy vehicles at turbo-roundabouts. This is of interest because heavy vehicles can influence turbo-roundabout functionality more than that of conventional ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Traffic Flow Analysis at Manual Tollbooth Operation under Mixed Traffic Conditions
(American Society of Civil Engineers, 2019)Heterogeneous traffic conditions prevail in all countries across the world, but the degree of heterogeneity is different in developed and developing countries. In the United States, heavy vehicles (trucks and buses) are ... -
Turbo-Roundabout: Case Study of Driver Behavior and Kinematic Parameters of Light and Heavy Vehicles
(American Society of Civil Engineers, 2019)This research compared kinematic and behavior parameters of light and heavy vehicles at turbo-roundabouts. This is of interest because heavy vehicles can influence turbo-roundabout functionality more than that of conventional ...