Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 3421-3440 of 4147
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Estimation of Lane Distribution of Truck Traffic for Pavement Design
(American Society of Civil Engineers, 1995)For structural analysis of pavement design and pavement evaluation, there is often a need to compute critical-lane traffic loading from directional traffic-volume input. The accurate estimation of the lane distribution of ... -
Standardized Elastic Moduli of Pavement Layers for Overlay Design
(American Society of Civil Engineers, 1995)The application of elastic theory to the design of overlays on existing pavement requires that a modulus of elasticity be assigned to the existing structural system. Estimates of elastic modulus are obtained from dynamic ... -
Accidents on Suburban Highways—Tennessee's Experience
(American Society of Civil Engineers, 1995)As part of a larger effort to develop guidelines for the design of arterial roads in areas undergoing suburbanization, a safety analysis of median design was undertaken using Tennessee data. The two median designs investigated ... -
Short-Term Prediction of Traffic Volume in Urban Arterials
(American Society of Civil Engineers, 1995)This paper attempts to develop time-series models for forecasting traffic volume in urban arterials. The Box-Jenkins approach is used to estimate the time-series models. A 1-min data set representing traffic volume on five ... -
Development of Wheelchair-Lift Prototype for Transit Buses
(American Society of Civil Engineers, 1995)This paper describes the concept, design, and prototype fabrication of an innovative four-bar mechanism-based wheelchair-lift system, which can allow a wheelchair-, scooter-, or walker-bound passenger to be lifted from ... -
Elasticity-Based Rural Traffic Forecasting Models
(American Society of Civil Engineers, 1995) -
Commingled Plastic Guardrail Post
(American Society of Civil Engineers, 1995)There has been an increased interest in the use of recyclable materials due to environmental and economic concerns. As a result, the use of recycled materials in roadside safety features is being explored. In the present ... -
Prediction of Heavy-Vehicle Weight Distributions
(American Society of Civil Engineers, 1995)A new methodology for predicting heavy-vehicle weight distributions and pavement loadings in terms of the governing weight limits and the intensity of enforcement is presented. Gross vehicle weight (GVW) predictive models ... -
Comparative Assessment of AHP and MAV in Highway Planning: Case Study
(American Society of Civil Engineers, 1995)A comparative analysis is made between the analytic hierarchy process (AHP) and the multiattribute value (MAV) functions, using the MAV theory as the basis of reference, in the evaluation of transportation projects. The ... -
Evaluating Steady-State Assumption for Highway Queueing System
(American Society of Civil Engineers, 1995)Stochastic queueing methods are often applied to highway systems to estimate performance characteristics such as delay and queue length. Inherent in stochastic queueing methods is the assumption that the system in question ... -
Methodology to Review Cost-Effective Highway Sign Retroreflective Sheeting Policy
(American Society of Civil Engineers, 1995)Kansas State University conducted research for the Kansas Department of Transportation to evaluate their retroreflective sheeting policy. This paper presents a recommended methodology for conducting a life-cycle cost ... -
Unit Curve for Design of Highway Transitions
(American Society of Civil Engineers, 1995)Calculations required for the design of a transition (spiral) curve are often facilitated by the use of tables that give the elements of the curve for selected values of length and minimum radius of the transition. The use ... -
Adjustment Factors for Heavy Vehicles at Signalized Intersections
(American Society of Civil Engineers, 1995)The objective of this paper is to investigate the effects of heavy vehicles in through lanes and in left-turn lanes. Headway samples of 1,320 passenger cars and 722 heavy vehicles were measured in the field. Average headways ... -
Quality-of-Service Model of Intercity Air-Travel Demand
(American Society of Civil Engineers, 1995)An econometric model is estimated for intercity passenger demand using postderegulation data. The model incorporates some quality-of-service measures as explanatory variables. These include flight frequency during peak and ... -
Space Standards for Sizing Air-Terminal Check-in Areas
(American Society of Civil Engineers, 1995)The appropriateness of the current space standards (occupancy rates) for airline check-in area design is discussed. Based on a study of passenger walking patterns at the two international airports in Montreal, it is suggested ... -
Mechanical Method to Evaluate Safety Factors in Buried Pipes
(American Society of Civil Engineers, 1995)The method presented studies the real behavior of a buried pipes system and its interaction with the surrounding soil. A mechanical system is used to apply a nondestructive loading from the inside of the structure, allowing ... -
High-Speed Ground Transportation is Coming to America—Slowly
(American Society of Civil Engineers, 1995)Over the past four decades, the United States has invested heavily in highways and airport improvements, and in general has opted not to develop intercity passenger rail service. Over the same period, by contrast, Europe ... -
Future of Airline Hubbed Networks: Some Policy Implications
(American Society of Civil Engineers, 1995)By hubbing at a few airports, airlines can maintain high levels of aircraft utilization and take advantage of the economies of aircraft size. Passengers also benefit in the form of increased frequency of service. However, ... -
Vehicle Kinematics and Its Application to Highway Design
(American Society of Civil Engineers, 1995)This paper presents a mathematical model for computing the path of any one point on a wheeled vehicle, which may be a bus, an articulated truck, or a wheeled robot, and the steering angle necessary for a reference point ... -
Viscoelastic Approach to Rutting in Flexible Pavements
(American Society of Civil Engineers, 1995)Permanent deformation (rutting) in bituminous pavements is treated as a linear viscoelastic flow phenomenon and is calculated using the linear elastic layered pavement model VESYS, reported by Kenis in 1978, supplied with ...