Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 3021-3040 of 4147
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New Statistical Framework for Estimating Carbon Monoxide Impacts
(American Society of Civil Engineers, 2000)The EPA specifies that level-of-service D intersections must undergo detailed microscale carbon monoxide modeling using the recommended software such as CAL3QHCr, which requires an in-depth knowledge of microscale dispersion ... -
Iteratively Specified Tree-Based Regression: Theory and Trip Generation Example
(American Society of Civil Engineers, 2000)Ordinary least-squares (OLS) regression is routinely applied by transportation analysts to forecast energy use, trip attractions, trip productions, automobile emissions, VMT growth, pavement condition, and accident occurrence ... -
Capturing Data and Model Uncertainties in Highway Performance Estimation
(American Society of Civil Engineers, 2000)Infrastructure agencies worldwide develop and continue to refine quantitative decision support systems for performance and investment projections. In the earlier stages of the creation of infrastructure decision support ... -
Modeling Bus Service under Competition and Regulation
(American Society of Civil Engineers, 2000)This paper considers transportation service of a bus route with a capacity constraint. The conventional demand-supply equilibrium model is adopted to determine demand, service quality, and profit of the operator and total ... -
Recycled Content Sign Blanks
(American Society of Civil Engineers, 2000)This paper documents a study of the feasibility of using sign blanks constructed of reclaimed materials in roadside applications instead of conventional high-grade plywood and aluminum. Various types of recycled materials ... -
Recursive Prediction of Traffic Conditions with Neural Network Models
(American Society of Civil Engineers, 2000)This paper presents a recursive traffic flow prediction algorithm using artificial neural networks. The system prediction model is specified based on the understanding of how disturbances in traffic flow are propagated, ... -
Spread Calculation in Composite Gutter Sections
(American Society of Civil Engineers, 2000)A generalized chart is presented to determine the spread in composite gutters given the gutter discharge. The use of this chart eliminates the tedious trial-and-error calculations to determine the spread in routine pavement ... -
Dynamic User-Optimal Departure Time/Route Choice with Hard Time-Windows
(American Society of Civil Engineers, 2000)This paper is a follow-up study to the dynamic user-optimal departure time/route choice problem, by imposing hard time-windows on origin departure times and on destination arrival times. However, by an appropriate network ... -
Fuzzy-Wavelet RBFNN Model for Freeway Incident Detection
(American Society of Civil Engineers, 2000)Traffic incidents are nonrecurrent and pseudorandom events that disrupt the normal flow of traffic and create a bottleneck in the road network. The probability of incidents is higher during peak flow rates when the systemwide ... -
Modified Iowa Formula for Vertical Deflection of Buried Flexible Pipe
(American Society of Civil Engineers, 2000)In this paper, the classical work of Spangler is revisited to derive a modified Iowa formula for estimating vertical deflection of flexible pipe. During the derivation process, the approach suggested by Spangler is faithfully ... -
Enhancements of CORSIM Model in Simulating Transit Operations
(American Society of Civil Engineers, 2000)A CORSIM-based microscopic simulation model is developed, which provides transit planners and operators with the ability to simulate bus operations on transit routes. Several modules in CORSIM for processing bus operations ... -
Evaluation of Traffic Parameters from Real Trajectories by Use of PCA
(American Society of Civil Engineers, 2000)This paper shows how principal components analysis (PCA) can be used to analyze a large set of real trajectories of vehicles on a bend. PCA gives an opportunity to reduce the mathematical and numerical operations necessary ... -
Forecasting Traffic Generation in Public Housing Estates
(American Society of Civil Engineers, 2000)The development of public housing has major traffic impacts on road networks, particularly in already congested cities. Hong Kong, being one of the most congested cities in the world, has a significant amount of public ... -
Ground Temperature in Porous Pavement during Freezing and Thawing
(American Society of Civil Engineers, 2000)Porous pavements are widely used for local disposal of storm water. This paper presents the results of a full-scale study of ground temperatures in porous pavement during periods with prolonged freezing conditions and ... -
Multiobjective Optimization for Pavement Maintenance Programming
(American Society of Civil Engineers, 2000)Pavement maintenance planning and programming requires optimization analysis involving multiobjective considerations. Traditionally single-objective optimization techniques have been employed by pavement researchers and ... -
Implementing Actuated Control of Diamond Interchanges
(American Society of Civil Engineers, 2000)The design of signal timings for diamond intersections is well documented in the literature, and there are a variety of software packages to assist one in generating timing plans. However, the actual implementation of ... -
Modeling Pedestrian Dynamics in Montreal's Underground City
(American Society of Civil Engineers, 2000)This study is an examination of the daily dynamics and system stability of pedestrian movement within an extensive, indoor walkway system. Temporal and spatial stability in the distribution of pedestrians was established ... -
Phosphate Waste in Mixtures to Improve Their Deformation
(American Society of Civil Engineers, 2000)The objective of this research is to investigate the deformation behavior of asphalt concrete mixtures containing four phosphate waste fillers (12.7-mm reject, 4.5-mm reject, slime, and phosphogypsum) as compared to the ... -
Environmentally Sensitive Design of Transportation Facilities
(American Society of Civil Engineers, 2000) -
Results of Car Following Analyses Using Global Positioning System
(American Society of Civil Engineers, 2000)One of the key elements in the evolution of traffic flow theory has been the development of the car following theory. Applications of this research can be seen in traffic simulation models, such as CORSIM, that use car ...