Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 3541-3560 of 4147
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Deficiencies of Travel‐Forecasting Methods Relative to Mobile Emissions
(American Society of Civil Engineers, 1993)This paper examines the ability of conventional travel‐forecasting models to respond to forecasting needs created by the Clean Air Act Amendments (CAAA) of 1990 and the air‐quality lawsuit brought against the Metropolitian ... -
Automating Urban Freeways: Financial Analysis for User Groups
(American Society of Civil Engineers, 1993)The automation of urban freeways is intended to reduce travel time costs, reduce direct (distance) costs, improve the safety of travel, create smoother vehicle operation, increase freeway lane capacity, and improve the ... -
Estimating Freeway Demand Patterns and Impact of Uncertainty on Ramp Controls
(American Society of Civil Engineers, 1993)An important application of advanced technology to transportation engineering involves the development of advanced traffic management systems (ATMS). Any proposed traffic‐management action is essentially a forecast that ... -
Closure to “<i>Procedures for Estimating Accident Reductions on Two‐Lane Highways</i>” by Rahim F. Benekohal and Asma M. Hashmi (January/February, 1992, Vol. 118, No. 1)
(American Society of Civil Engineers, 1993) -
Vehicle Impact Simulation
(American Society of Civil Engineers, 1993)Improvement in impact simulation between vehicles and roadside safety hardware is investigated. The use DYNA3D, a nonlinear, explicit, three‐dimensional, public‐domain, finite‐element code for vehicle impact numerical ... -
Analytical Framework for Minimizing Freeway‐Incident Response Time
(American Society of Civil Engineers, 1993)Freeway‐incident‐management (FIM) programs are receiving growing attention, since they have the potential of generating substantial savings for highway users. The goal of any incident‐management program is the minimization ... -
Discussion of “<i>Procedures for Estimating Accident Reductions on Two‐Lane Highways</i>” by Rahim F. Benekohal and Asma M. Hashmi (January/February, 1992, Vol. 118, No. 1)
(American Society of Civil Engineers, 1993) -
Visibility Near Intersection Partially Obscured by Vegetation
(American Society of Civil Engineers, 1993)A technique has been developed to quantify the visibility of vehicles to drivers approaching, or stopped at, an intersection where vegetation intermittently blocks their clear line of sight. The technique yields visibility ... -
Optimal Dimensions of Bus Service Zones
(American Society of Civil Engineers, 1993)Multiple period optimization models are developed that may be applied to several types of bus transit systems including feeder routes to transfer terminals, radial routes to activity centers, and zonal service operations. ... -
Yearly Variation of Directional Distribution of Highway Traffic
(American Society of Civil Engineers, 1993)Investigated in this technical note is the yearly variation of directional distribution of traffic on rural highways. A total of 60 sites located in the province of Alberta, Canada, are investigated. Two measures of ... -
Analysis of Concave Curling in Concrete Slabs
(American Society of Civil Engineers, 1993)A concrete pavement curls to a concave configuration when it is subjected to a negative temperature gradient, which results when the temperature at its bottom surface is higher than at its top surface. A gap may occur ... -
Real‐Time Traffic Diversion Model: Conceptual Approach
(American Society of Civil Engineers, 1993)The development of advanced traffic‐management systems as a major component of intelligent vehicle/highway systems is targeted to address the complex problem of urban traffic congestion. The strategy includes real‐time ... -
Optimal Control of Freeway Corridors
(American Society of Civil Engineers, 1993)Hierarchical traffic control that adapts to exogenous changes, optimizes system performance, and reduces local disturbances is one of the most effective advanced traffic management system methods for relieving congestion ... -
Microcomputer Model for Design and Location of Runway Exits
(American Society of Civil Engineers, 1993)An interactive microcomputer program referred to as runway exit design interactive model (REDIM) has been developed to optimally locate and design high‐speed runway exits at airports. The model uses kinematic equations to ... -
Priority Rating of Highway Maintenance Needs by Neural Networks
(American Society of Civil Engineers, 1993)The present paper illustrates the feasibility of using neural network models for priority assessment of highway pavement maintenance needs. Since neural networks are developed to mimic the decision‐making process of human ... -
Section 15 Patronage Reporting for Barrier‐Free Transit Service
(American Society of Civil Engineers, 1993)In order to qualify for federal operating assistance, transit operators in the United States are required to report annual unlinked passenger miles carried on bus and fixed guideway systems. In order to ensure fair ... -
Evaluating the Capacity of Freeway Weaving Sections
(American Society of Civil Engineers, 1993)The research described in this paper employed simulation modeling and empirical observations in an effort to: (1) Identify the traffic flow phenomena that characterize freeway weaving section capacity; and (2) determine ... -
Primitive‐Based Classification of Pavement Cracking Images
(American Society of Civil Engineers, 1993)Collection and analysis of pavement distress data are receiving attention for their potential to improve the quality of information on pavement condition. We present an approach for the automated classificaton of asphalt ... -
Duration and Frequency of Seasonal Traffic Counts
(American Society of Civil Engineers, 1993)Presented in this paper is an investigation of areawide seasonal traffic counts (STC) that are undertaken by all state highway agencies throughout the United States and in several other countries. The current practice of ...