Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 3361-3380 of 4147
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Discussion and Closure: Geometric Design of Compound Horizontal Curves
(American Society of Civil Engineers, 1996) -
Methodological Framework for Air-Travel Demand Forecasting
(American Society of Civil Engineers, 1996)Air-transport demand forecasting constitutes an important determinant of airport planning, design, and operations. Errors in forecasting can be very costly. Underestimating demand may lead to increased congestion, delay, ... -
Pipeline Beam Models Using Stiffness Property Deformation Relations
(American Society of Civil Engineers, 1996)This paper first reviews the large displacement formulation of the soil-beam pipeline interaction problem. It then demonstrates that two methods of integration, namely, one-dimensional integration of section-property-deformation ... -
Uniform Criteria for Level-of-Service Analysis of Freeways
(American Society of Civil Engineers, 1996)For level-of-service analysis, the 1994 -
Negative Binomial Analysis of Intersection-Accident Frequencies
(American Society of Civil Engineers, 1996)Traffic accidents at urban intersections result in a huge cost to society in terms of death, injury, lost productivity, and property damage. Unfortunately, the elements that effect the frequency of intersection accidents ... -
Closed-Form Back-Calculation of Rigid-Pavement Parameters
(American Society of Civil Engineers, 1996)This paper describes the development of a solution of surface deflections for the problem of infinite-slab-on-elastic foundation and its use in back-calculation analysis. Numerical integration is employed to compute the ... -
Evaluation of Road Maintenance Automation
(American Society of Civil Engineers, 1996)Automated road maintenance can produce direct and indirect cost savings; improvements in safety, quality, working environment, and productivity; and reduction of vehicle emissions and energy consumption due to expedited ... -
Travel Modeling with and without Feedback to Trip Distribution
(American Society of Civil Engineers, 1996)Many regional agencies model travel demand without feeding assigned travel times back to the trip distribution step. This method saves time and money but is likely to be biased in favor of build alternatives because it ... -
Delay Estimation and Optimal Length for Four-Lane Divided Freeway Workzones
(American Society of Civil Engineers, 1996)Vehicle delay is one of the most serious impacts of highway workzones on existing traffic operations. The present study provides a comprehensive and detailed estimation of traffic delay due to a freeway workzone where the ... -
Human Factors in Highway Geometric Design
(American Society of Civil Engineers, 1996)Research of human factors in highway engineering may be seen to include two main areas: the effect of geometric design on driver behavior, and the consideration of driver behavior variability. A critical review of pertinent ... -
Different Travel Patterns: Interzonal, Intrazonal, and External Trips
(American Society of Civil Engineers, 1996)Intrazonal and external trips are usually excluded from the modeling process because they are difficult to measure. The exclusion of such types of trips generally affects the accuracy of a calibrated distribution model. ... -
Grading Design of Side Slopes Fitting Roadside Topography
(American Society of Civil Engineers, 1996)Preparing the grading plan of the side slopes on a highway section is an effective way to obtain an overall three-dimensional view of the entire design area, and a design fitting the roadside topography. Flattening the ... -
Stiffness Reductions of Flexible Pavements due to Cumulative Fatigue Damage
(American Society of Civil Engineers, 1996)A new asphalt layer modulus degradation model for use with flexible-pavement analysis procedures is described. The model is capable of determining the reduction in stiffness of the asphaltic material in a flexible pavement ... -
Trip Characteristics of Travelers without Vehicles
(American Society of Civil Engineers, 1996)A knowledge of the rip characteristics of different groups of travelers in an urban area is of great use in planning land use and transport-related facilities. Travelers in households without vehicles (not even bicycles) ... -
Design of Multistage Pumping Main
(American Society of Civil Engineers, 1996)Long-distance pipelines transporting fluids against gravity and frictional resistance involve multistage pumping. Equations for the optimal diameter and the pumping head for a single-stage pumping main are available. ... -
Prototype Knowledge-Based System for Corrective Maintenance of Pavements
(American Society of Civil Engineers, 1995)Corrective maintenance of pavements involves identifying the existing problems and selecting the most effective remedial measure to correct the deficiencies. Regular inspection and minor repairs ensure a satisfactory level ... -
Three-Dimensional Category Analysis Using Probabilistic Approach
(American Society of Civil Engineers, 1995)Category analysis is a method to find the average response of trips made by a particular category of analysis unit such as a person or household. Conventional analysis is done by household categories whereby the causal ... -
Modeling Damage to Rigid Pavements Caused by Subgrade Pumping
(American Society of Civil Engineers, 1996)The efficient utilization of construction and maintenance resources requires the ability to effectively predict and model subgrade pumping in rigid concrete pavements. A review of the evolution of a rigid pavement pumping ... -
Framework for PMS Using Mechanistic Distress Submodels
(American Society of Civil Engineers, 1996)A framework for a pavement-management system is presented, which employs mechanistic performance submodels to predict pavement behavior. These performance submodels predict the development of pavement distresses in terms ... -
Resilient Characteristics of Dune Sand
(American Society of Civil Engineers, 1995)Resilient-modulus tests were performed on a laboratory compacted dune sand following the standard test procedure described in the 1982