Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 3381-3400 of 4147
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Fractals of Aggregates Correlated with Creep in Asphalt Concrete
(American Society of Civil Engineers, 1996)The influence of shape and surface texture of coarse aggregates on the deformation characteristics of asphalt concrete mixtures was evaluated in the laboratory. Shape and surface texture of aggregates was measured using ... -
Vehicle and Pedestrian Accident Models for Median Locations
(American Society of Civil Engineers, 1995)It has long been recognized that medians are an effective method of increasing vehicular safety and capacity on urban and suburban arterials. Medians can provide an additional lane for through traffic by removing left ... -
Optimal Scheduling of Urban Transit Systems Using Genetic Algorithms
(American Society of Civil Engineers, 1995)Scheduling of urban transit network can be formulated as an optimization problem of minimizing the overall transfer time (TT) of transferring passengers and initial waiting time (IWT) of the passengers waiting to board a ... -
Development of Effective Rockfall Barriers
(American Society of Civil Engineers, 1995)As a part of the construction of Interstate 70 through Glenwood Canyon, in Colorado, three new types of barriers for protection against rockfall were developed through a program of prototype testing, numerical simulation ... -
Evaluating Efficiency of Rock Blasting Using Data-Envelopment Analysis
(American Society of Civil Engineers, 1996)The prime objective of this paper is to demonstrate how a public roads authority charged with reviewing the performances of its agencies can analyze the efficiency with which services are produced. Specifically, we show, ... -
Structural Responses of Transit Buses: Impact of Seat-Belt Loads
(American Society of Civil Engineers, 1995)The objectives of this engineering investigation were to determine the structural responses of typical transit buses under various combinations of seat-belt use and seat type as well as the changes in these responses from ... -
Dynamic Analysis of Infinite Beam on Modified Vlasov Subgrade
(American Society of Civil Engineers, 1995)Analysis of pavement-subgrade system under traffic load has been traditionally done by static method, such as multilayer elastic theory. Although, in some instances, the static analysis method is sufficient and conservative ... -
Mechanistic Evaluation of Rigid Airfield Pavements
(American Society of Civil Engineers, 1995)A structural deterioration relationship is developed using the U.S. Army Corps of Engineers accelerated traffic tests for plain concrete airfield pavements. The relationship predicts the performance of the rigid pavement ... -
High-Speed Ground Transportation Development outside United States
(American Society of Civil Engineers, 1995)This paper surveys the state of high-speed (in excess of 200 km/h) ground-transportation developments outside the United States. Both high-speed rail and Maglev systems are covered. Many vehicle systems capable of providing ... -
Mechanistic Evaluation of Saturated Bases under Concrete Pavements
(American Society of Civil Engineers, 1995)A mechanistic method for predicting the response of concrete pavements overlying a multilayer soil system is proposed. The method incorporates a finite-element discretization of a concrete slab and a variable foundation ... -
Rheological Properties of Rubber-Modified Asphalt
(American Society of Civil Engineers, 1995)The performance of rubber (from used tires) as an asphalt cement modifier was evaluated by performing experiments on the shear-flow properties and creep-rupture behavior of modified asphalt cements. Results indicate that ... -
Evidence on Transferability of Trip-Generation Models
(American Society of Civil Engineers, 1995)Full and partial transfer results of trip-production models among intercity, intracity, and intraregional locations are reported in this paper. Nineteen models were transferred 208 times among the locations. The variety ... -
Pavement Thickness Design for No-Fines Concrete Parking Lots
(American Society of Civil Engineers, 1995)No-fines concrete is made from a uniformly graded coarse aggregate and a cement-water paste. Because of its excellent drainage properties, no-fines concrete is found to be beneficial in areas that receive frequent and ... -
Incorporating Life-Cycle Costs in Highway-Bridge Planning and Design
(American Society of Civil Engineers, 1995)Life-cycle cost analysis has been stressed by various state departments of transportation and applied to a highway bridge-management system (BMS) as a decision-making strategy in maintenance, rehabilitation, or replacement ... -
Parametric Study of Factors Affecting Flexible-Pavement Performance
(American Society of Civil Engineers, 1995)A new whole-life pavement-performance model (WLPPM) that is capable of making deterministic pavement-damage predictions due to realistic traffic and environmental loading has been developed. A vehicle simulation is used ... -
Effect of Heterogeneity of Traffic on Delay at Signalized Intersections
(American Society of Civil Engineers, 1995)The average delay caused to vehicles at signalized intersections is an important criterion in the evaluation of performance at these intersections. Various models have been developed to estimate delay to traffic at signalized ... -
Positive Feedback Model of Multiple-Airport Systems
(American Society of Civil Engineers, 1995)A model for allocating passenger traffic in a multiple-airport system is proposed and tested. The model treats the supply side of the system as endogenous, and represents it implicitly using the principle that as traffic ... -
Contact-Element Model for Dynamic Analysis of Jointed Concrete Pavements
(American Society of Civil Engineers, 1995)A finite-element algorithm is developed to analyze the dynamic response of multiple, jointed concrete pavements to moving aircraft loads. In the finite-element idealization, the pavement-subgrade system is idealized by ... -
Steel Pipe Wrinkling due to Longitudinal Permanent Ground Deformation
(American Society of Civil Engineers, 1995)The behavior and design of a straight buried steel pipe subject to permanent ground deformation (PGD) where the movement is parallel to the pipe axis is considered. The PGD zone is characterized by the amount of movement, ... -
Goal-Programming Methodology for Integrating Pavement and Bridge Programs
(American Society of Civil Engineers, 1995)A goal-programming methodology is presented for integrating the decisions involved in the development of annual pavement and bridge programs. The methodology involves four major steps: (1) identification of multiple objective ...