Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 1681-1700 of 4147
-
Concept of Stream Equivalency Factor for Heterogeneous Traffic on Urban Arterial Roads
(American Society of Civil Engineers, 2013)Mixed traffic flow is often converted to equivalent flow in passenger car units (PCUs) by multiplying the number of each category of vehicles in the traffic stream by their respective PCU factors and then adding them up. ... -
Permanent Deformation Predictive Equations Applicable to Mechanistic-Empirical Flexible Pavement Design
(American Society of Civil Engineers, 2013)Flexible pavement design is increasingly utilizing mechanistic-empirical (M-E) based design methods. To date, research has resulted in the development of two primary prediction models for permanent deformation on the basis ... -
Calculation of Shrinkage Stress in Early-Age Concrete Pavements. II: Calculation of Shrinkage Stress
(American Society of Civil Engineers, 2013)This paper focuses on modeling of the shrinkage stress in concrete pavements that experience nonlinear shrinkage strain through the depth of the slab. A closed form of an analytical solution of shrinkage stress is developed. ... -
Real-Time Bus Arrival Time Prediction: Case Study for Jinan, China
(American Society of Civil Engineers, 2013)Providing real-time bus arrival information can help to improve the service quality of a transit system and enhance its competitiveness among other transportation modes. Taking the city of Jinan, China, as an example, this ... -
Tangent-to-Curve Transition on Two-Lane Rural Roads Based on Continuous Speed Profiles
(American Society of Civil Engineers, 2013)In the road geometric design process, speed variation along the road segment is one of the most popular criteria to evaluate road consistency, hence the importance of estimating operating speed and its variations. Most of ... -
Safety Effects of Median Treatments Using Longitudinal Channelizers: Empirical Bayesian Before-and-After Study
(American Society of Civil Engineers, 2013)A new median treatment technique using longitudinal channelizers has been used in Florida as an alternative to the traditional permanent concrete barrier. However, the effects of the new technique on roadway safety and its ... -
Closure to “Traffic Signal Optimization with Greedy Randomized Tabu Search Algorithm” by Ta-Yin Hu and Li-Wen Chen
(American Society of Civil Engineers, 2013) -
Cumulative Travel-Time Responsive Real-Time Intersection Control Algorithm in the Connected Vehicle Environment
(American Society of Civil Engineers, 2013)This paper presents a cumulative travel-time responsive (CTR) real-time intersection control algorithm that takes full advantage of connected vehicles (CVs). The potential benefits of the proposed CTR algorithm under varying ... -
Effects of Bicycle Boxes on Bicyclist and Motorist Behavior at Intersections in Austin, Texas
(American Society of Civil Engineers, 2013)Provision of bicycle facilities at intersections is often inadequate and can lead to unsafe interactions between motorists and bicyclists. The bicycle box is a tool intended to improve the predictability of bicyclist ... -
Local Calibration of MEPDG for Flexible Pavements in New Mexico
(American Society of Civil Engineers, 2013)Local calibration of the mechanistic-empirical pavement design guide (MEPDG) is performed by determining the pavement-performance model coefficients to minimize the difference between the measured and predicted distresses ... -
Stress and Deflection Parametric Study of High-Speed Railway CRTS-II Ballastless Track Slab on Elevated Bridge Foundations
(American Society of Civil Engineers, 2013)Ballastless track slab system (BTS) of China Rail Transit Summit type-II (CRTS-II) is primarily used in China’s Beijing-Shanghai high-speed railway. As a new structural form, CRTS-II has not been extensively tested, and ... -
Hybrid Technique for Calibrating Network-Level Performance Models of Continuously Reinforced Concrete Pavements
(American Society of Civil Engineers, 2013)Pavement performance models exist in various forms to cater to the pavement management agencies’ needs and resources. Well-calibrated models are needed to accurately predict future pavement conditions and to forecast and ... -
System Reliability Analysis of Flexible Pavements
(American Society of Civil Engineers, 2013)The uncertainty in material properties and traffic characterization in the design of flexible pavements has led to significant efforts in recent years to incorporate reliability methods and probabilistic design procedures ... -
Development and Evaluation of Methods for Constructing Breakdown Probability Models
(American Society of Civil Engineers, 2013)The term -
Availability Approach to Optimizing Railway Track Renewal Operations
(American Society of Civil Engineers, 2013)This paper proposes a multiobjective optimization approach for planning railway ballast, rail, and sleeper renewal operations. The objective is to support an informed decision that considers not only the railway track ... -
Impact of Traffic Overload on Road Pavement Performance
(American Society of Civil Engineers, 2013)Traffic on a road pavement is characterized by a large number of different vehicle types, and these can be considered in pavement design by using truck factors to transform the damage they apply to the pavement to the ... -
Critical Traffic Control Locations for Emergency Evacuation
(American Society of Civil Engineers, 2013)Proper traffic control and guidance are imperative to reduce fatalities and property damage. When resources are scarce during emergency evacuation for any natural or artificial disasters, it is crucial to identify the most ... -
Multiobjective Pavement-Preservation Decision Making with Simulated Constraint Boundary Programming
(American Society of Civil Engineers, 2013)An optimization model is designed to guide pavement agencies to make decisions under multicriteria decision circumstances. In this paper, a multiobjective optimization model is illustrated to enable pavement-management ... -
Factors Influencing the Severity of Crashes Caused by Motorcyclists: Analysis of Data from Alabama
(American Society of Civil Engineers, 2013)The number of motorcycle crashes in Alabama more than doubled from 1999 to 2008, while the number of fatal motorcycle crashes tripled during the same period. Most work on motorcycle crash severity has been based on analysis ... -
Shared Roadway Implementation Guidance
(American Society of Civil Engineers, 2013)Shared roadways have automobiles and bicycles operating in the same traveled way, which may negatively affect traffic operations; there is limited guidance on appropriate shared roadway implementation. To provide guidance ...