Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 1721-1740 of 4147
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Improvements and Innovations in Aerial Ropeway Transportation Technologies: Observations from Recent Implementations
(American Society of Civil Engineers, 2013)Real-world applications of conventional public transport technologies in urban areas might not always be feasible due to several factors that are not necessarily attributed to passenger demand, such as the very high capital ... -
Road Surface Wetness Variations: Measurements and Effects for Winter Road Maintenance
(American Society of Civil Engineers, 2013)Road wetness is a critical parameter when it comes to preventing road slipperiness. It has so far been difficult to measure, but new measurement techniques on the market make it useful to investigate the savings opportunities ... -
Performance and Safety Assessment of ATO Systems in Urban Rail Transit Systems in China
(American Society of Civil Engineers, 2013)Automatic train operation (ATO) is an important part of automatic train control (ATC) systems in urban rail transit. Using computers to simulate the complicated circumstances of train movement to test the operations of ... -
Modeling the Effects of Rainfall Intensity on Traffic Speed, Flow, and Density Relationships for Urban Roads
(American Society of Civil Engineers, 2013)The relationships between traffic speed, flow, and density under various rainfall conditions on urban roads in Hong Kong are investigated in this study. The effects of rainfall intensities are examined empirically, ... -
Reliability Analysis of Minimum Pedestrian Green Interval for Traffic Signals
(American Society of Civil Engineers, 2013)The current method of computing the minimum pedestrian green interval for intersection signal timing assumes that the component variables are deterministic. This paper presents a probabilistic method in which the pedestrian ... -
Solving High-Speed Rail Planning with the Simulated Annealing Algorithm
(American Society of Civil Engineers, 2013)High-speed rail (HSR) networks require large investments, and the performance of the infrastructure is affected by varying local environments, while subject to tight layout restrictions. This paper presents a fully integrated ... -
Robust Optimization Model of Bus Transit Network Design with Stochastic Travel Time
(American Society of Civil Engineers, 2013)The design of urban bus transit systems aims to determine a network configuration with a set of bus lines and associated frequencies that achieve the targeted objective. This paper presents a methodology framework to ... -
Principle of Demographic Gravitation to Estimate Annual Average Daily Traffic: Comparison of Statistical and Neural Network Models
(American Society of Civil Engineers, 2013)This paper focuses on the application of the principle of demographic gravitation to estimate link-level annual average daily traffic (AADT) based on land-use characteristics. According to the principle, the effect of a ... -
Influence of Track Support Stiffness of Ballasted Track on Dynamic Wheel-Rail Forces
(American Society of Civil Engineers, 2013)Dynamic wheel-rail force can be limited to high-frequency components owing to imperfections in the wheel-rail contact surface ( -
Optimal Decision Making of Interdependent Tollway Capital Investments Incorporating Risk and Uncertainty
(American Society of Civil Engineers, 2013)A new methodology is proposed to address issues of networkwide effects of highway projects and interdependencies of jointly implementing multiple projects to support optimal investment decisions. Specifically, a multicommodity ... -
Bayesian Dynamic Linear Model with Switching for Real-Time Short-Term Freeway Travel Time Prediction with License Plate Recognition Data
(American Society of Civil Engineers, 2013)This paper presents a Bayesian inference-based dynamic linear model (DLM) with switching based on three-phase traffic flow theory to predict online short-term travel time with plate recognition data. The proposed method ... -
Investigating Seismic Behavior of Ballasted Railway Track in Earthquake Excitation Using Finite-Element Model in Three-Dimensional Space
(American Society of Civil Engineers, 2013)In this paper, a finite-element (FE) model including the track super- and substructure components was developed for seismic analysis of railway track. In the developed model, the beam elements were used to define rails and ... -
Service Condition of Railroad Corridors around the Insulated Rail Joints
(American Society of Civil Engineers, 2013)Railroad corridors contain a large number of insulated rail joints (IRJs) that act as elements (critical to safety) in the circuitries of signaling and broken rail identification systems. IRJs are regarded as sources of ... -
Large Truck–Involved Crashes: Exploratory Injury Severity Analysis
(American Society of Civil Engineers, 2013)In recent years, a growing concern related to large truck accidents has increased owing to the level of injury severity that can be sustained and to the related potential economic impact. Current studies related to large ... -
Analysis of Sight Distance, Crash Rate, and Operating Speed Relationships for Low-Volume Single-Lane Roundabouts in the United States
(American Society of Civil Engineers, 2013)This paper explores the relationship between sight distance parameters, crash rates, and operating speeds at low-volume single-lane roundabouts in the United States. The understanding of the interaction of design, operations, ... -
Evaluating Centralized versus Decentralized Zoning Strategies for Metropolitan ADA Paratransit Services
(American Society of Civil Engineers, 2013)Americans with Disabilities Act (ADA) paratransit systems are dial-a-ride services that provide public transportation to disabled customers. In large metropolitan areas, these services might use zoning strategies to simplify ... -
Mode Choice Behavior of Commuters in Thiruvananthapuram City
(American Society of Civil Engineers, 2013)Travel behavior plays an important role in transportation planning. Mode choice analysis is the process of arriving at a decision about which mode to use under a set of circumstances. Choice of a particular mode by a ... -
Estimating Optimum Timings for Treatments on Flexible Pavements with Surface Rutting
(American Society of Civil Engineers, 2013)The evaluation of the pavement preservation interventions is the most important component of a pavement management system. There is a need for a rational methodology to evaluate pavement preservation alternatives to maximize ... -
Effect of Road Narrowing on Junction Capacity Using Microsimulation
(American Society of Civil Engineers, 2013)Traffic-calming measures have been widely used in urban areas, aiming sometimes to reduce vehicle flow rates but primarily to reduce speed and, hence, the number and severity of traffic accidents. The one-way priority ... -
Track Allocation Optimization in Railway Station: Mean-Variance Model and Case Study
(American Society of Civil Engineers, 2013)Allocating tracks with operation restrictions for trains in a conflict-free way is known as the basic scheduling problem, and it has attracted much attention, especially at the station bottlenecks. First, this paper presents ...