Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 2881-2900 of 4147
-
Estimating Expected Price of Vehicles in a Transportation Microsimulation Modeling System
(American Society of Civil Engineers, 2002)Microsimulation modeling is an emerging approach to activity-based travel forecasting. Household automobile-ownership models are being included in microsimulation travel-demand models more. Implicitly, vehicle price is an ... -
Modeling Road Maintenance Management and Financing
(American Society of Civil Engineers, 2002)A great deal of research has been carried out over the past few decades into developing models for estimating road transport costs derived from maintenance investment policies. These existing models attempt to estimate the ... -
Simulation Evaluation of Route-Based Control of Bus Operations
(American Society of Civil Engineers, 2002)In this paper, results of an evaluation of an innovative strategy for minimizing bus bunching are presented. The strategy involves continuous monitoring of bus positions along their route and controlling bus spacing when ... -
Optimum Flexible Pavement Life-Cycle Analysis Model
(American Society of Civil Engineers, 2002)A flexible pavement life-cycle model has been developed to yield an optimum maintenance and rehabilitation plan. The model incorporates into the optimization process both performance and cost associated with a life-cycle ... -
Speech Recognition for On-Site Collection of License Plate Data: Exploratory Application Development and Testing
(American Society of Civil Engineers, 2002)The collection of traffic data in the field, both from manual and automated methods, is vital to the management and maintenance of the transportation infrastructure. Historically, many methods for manual data collection ... -
Comparative Study of Two Techniques of Transit Performance Assessment: AHP and GAT
(American Society of Civil Engineers, 2002)Public transit agencies in the United States have been under mounting pressure to reduce operating costs and subsidies and to improve productivity, ridership, and service levels. Given the growing emphasis on quality and ... -
Feasibility of Using Freeway Service Patrol Trucks as Probe Vehicles
(American Society of Civil Engineers, 2002)This research assessed the feasibility of using trucks in an existing Los Angeles Freeway Service Patrol (FSP) fleet as probe vehicles to measure ambient speed on freeway segments. Floating car speeds were the basis of ... -
Effect on Utilization of Auxiliary through Lanes of Downstream Right-Turn Volume
(American Society of Civil Engineers, 2002)To increase the capacity of through traffic at signalized intersections, additional lanes with limited lengths—called auxiliary lanes—are usually added to the roadway at the intersection. Because of their limited length, ... -
Analysis and Modeling of Measured Delays at Isolated Signalized Intersections
(American Society of Civil Engineers, 2002)Vehicular delay is an excellent tool for evaluating the operation of signalized intersections. This paper presents a methodology for measuring and analyzing stopped delay as well as acceleration and deceleration delay at ... -
Dynamic Bus Arrival Time Prediction with Artificial Neural Networks
(American Society of Civil Engineers, 2002)Transit operations are interrupted frequently by stochastic variations in traffic and ridership conditions that deteriorate schedule or headway adherence and thus lengthen passenger wait times. Providing passengers with ... -
Optimal Vertical Alignment Analysis for Highway Design
(American Society of Civil Engineers, 2002)Critical length of grade control, fixed-elevation points, and nonoverlapping of horizontal and vertical curves are three common requirements in the vertical alignment design of roads. These three forms of constraints are, ... -
Determination of Left-Turn Yellow Change and Red Clearance Interval
(American Society of Civil Engineers, 2002)The yellow change and red clearance intervals for left-turn movements in right-hand-side driving environments are addressed on an analytic basis. Factors such as safety, perception, comfort, driver’s behavior, signal timing, ... -
Variable Power Vehicle Dynamics Model for Estimating Truck Accelerations
(American Society of Civil Engineers, 2002)This paper introduces the concept of a linearly increasing variable power to the basic vehicle dynamics model that has been proposed in the literature. The paper also calibrates the model to typical truck classifications ... -
Analysis of Reflective Crack Control System Involving Reinforcing Grid over Base-Isolating Interlayer Mixture
(American Society of Civil Engineers, 2002)To develop a rigorous, mechanistic design method for asphalt overlays, one must have a method to accurately determine the response of the overlay system to various load conditions. This paper presents a cutting-edge nonlinear ... -
Multiclass Network Toll Design Problem with Social and Spatial Equity Constraints
(American Society of Civil Engineers, 2002)In congestion pricing, apart from the conventional social equity issue between poor and rich drivers who pay the same toll charge, there exists a spatial equity issue in the sense that the changes of the generalized travel ... -
Effects of Runway Deicers on Pavement Materials and Mixes: Comparison with Road Salt
(American Society of Civil Engineers, 2002)Every year, large amounts of pavement deicing chemicals are used for snow and ice control on Canadian highways and airports. Until recently, urea had been the only pavement deicing chemical in use at Canadian airports, but ... -
Integrated Adaptive-Signal Dynamic-Speed Control of Signalized Arterials
(American Society of Civil Engineers, 2002)This paper demonstrates the feasibility of an advanced concept of traffic control for congested urban arterials in an intelligent transportation system (ITS) setting. The core idea of the new concept is to integrate the ... -
Simulation Model for Evaluating and Improving Effectiveness of Freeway Service Patrol Programs
(American Society of Civil Engineers, 2002)Nonrecurrent congestion caused by highway incidents is a major concern for transportation agencies and millions of road users in most metropolitan areas in the United States. As a low-cost approach to incident management, ... -
Estimation of Parameters in Distribution of Headways in Roundabouts
(American Society of Civil Engineers, 2002)Estimation of parameters in the distribution of headways in roundabouts is a cumbersome task. Inherent to data employed are temporal variation together with dependence between successive vehicles. This is a consequence of ... -
Accuracy of Stopped Delay Measured by Stopped-Vehicle Counts Method
(American Society of Civil Engineers, 2002)The stopped delay is a primary factor for measuring the level of service at signalized intersections, and the 1994 Highway Capacity Manual proposed a method for measuring the stopped delay in the field based on direct ...