Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 3081-3100 of 4147
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Commuter Cyclist Accident Patterns in Toronto and Ottawa
(American Society of Civil Engineers, 2000)In this study, self-reported cyclist collision and fall information from a mail-back questionnaire was analyzed for a sample of 2,945 adult cyclists who commute to work/school in Toronto and Ottawa. Analysis focused on ... -
Various Volume Definitions with Conflicts at Unsignalized Intersections
(American Society of Civil Engineers, 2000)This paper presents data for 15 four-leg unsignalized intersections. The data concerning traffic volume and conflicts of four levels of severity grades were collected by the use of a video camera. The main objective of ... -
Numerical Methodology in Fatigue Analysis: Basic Formulation
(American Society of Civil Engineers, 1999)Numerical simulation of fatigue crack growth in pavements could provide a simple and fast method to assess the resistance of the pavement to crack initiation and propagation under applied traffic loads. Such studies are ... -
Capsule-Hoist System for Vertical Transport of Minerals
(American Society of Civil Engineers, 1999)In the capsule hoist system, cylindrical capsules, loaded with minerals, are inserted into the lower end of a vertical water-filled shaft. The capsules having low mass density are lifted due to natural buoyant forces. These ... -
Design-Build Contract Award Methods for Transportation Projects
(American Society of Civil Engineers, 1999)A nationwide survey of state Departments of Transportation (DOTs) found that 15 states are using design-build (DB) to procure highway construction projects. Analysis of their methods yielded three different systems to ... -
Gray Evaluation Method of Concrete Pavement Comprehensive Condition
(American Society of Civil Engineers, 1999)Evaluation of pavement condition is important in a pavement management system. In the existing evaluation methods, systematic analysis and regression modeling analysis are often used. But the former relies more on experienced ... -
Superelevation, Side Friction, and Roadway Consistency
(American Society of Civil Engineers, 1999) -
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(American Society of Civil Engineers, 1999) -
Phase Transitions in Nonequilibrium Traffic Theory
(American Society of Civil Engineers, 2000)This paper uses the center difference scheme of Lax-Friedrichs to numerically solve a newly developed continuum traffic flow theory and the kinematic theory of Lighthill and Whitham, and Richards, and it studies the ... -
Modeling of Required Preview Sight Distance
(American Society of Civil Engineers, 2000)Poor coordination of horizontal and vertical alignments can create locations where the available sight distance drops below the required sight distance. Therefore, current design guides have recommended a number of guidelines ... -
Individual Vehicle Speed Estimation Using Single Loop Inductive Waveforms
(American Society of Civil Engineers, 1999)Travel time is the reciprocal of speed and is a useful measure of road congestion and traffic system performance. Travel time is also a basic traffic variable that is used in many intelligent transportation system strategies ... -
Evaluation of Freeway Lane Control for Incident Management
(American Society of Civil Engineers, 1999)This paper presents and discusses the results and implications of an empirical study on the impact of the lane control signals (LCS) on resulting traffic patterns in the case of freeway lane closures. Effectiveness of LCS ... -
Aspects of Road Safety Audits
(American Society of Civil Engineers, 1999)The procedure of road safety audit (RSA), which originated in Great Britain and is now being spread in several countries around the world, can be incorporated in the framework of designing, constructing, and operating road ... -
Assessing Expected Accuracy of Probe Vehicle Travel Time Reports
(American Society of Civil Engineers, 1999)The use of probe vehicles to provide estimates of link travel times has been suggested as a means of obtaining travel times within signalized networks for use in advanced travel information systems. Past research in the ... -
Spectral Basis Neural Networks for Real-Time Travel Time Forecasting
(American Society of Civil Engineers, 1999)This paper examines how real-time information gathered as part of intelligent transportation systems can be used to predict link travel times for one through five time periods ahead (of 5-min duration). The study employed ... -
Modeling Congestion on Urban Roads and Assessing Level of Service
(American Society of Civil Engineers, 1999)A unified methodology has been proposed for the quantification of congestion, incorporating the volume and operational characteristics of traffic movement. The level of congestion has been modeled to relate to the causal ... -
Using Conditional Probability to Find Driver Age Effect in Crashes
(American Society of Civil Engineers, 1999)Conditional probabilities were used to explore the potential relationships between driver age and factors related to crash involvement including crash location, manner of collision, roadway character, speed of vehicles ... -
Cost-Effectiveness Evaluation of Hoosier Helper Freeway Service Patrol
(American Society of Civil Engineers, 1999)Hoosier Helper is an Indiana Department of Transportation sponsored roving freeway service patrol, providing free assistance to motorists stranded on portions of Interstate 80-94 and Interstate 65 in Northwest Indiana, ... -
Multistage Optimization of Reconstruction Sequence of Highways
(American Society of Civil Engineers, 1999)A method to determine the optimal groups of road segments to be simultaneously treated during road widening programs is described. This methodology specifically addresses a prioritizing system and the closure strategy ... -
Three-Slab Model for Concrete Pavements
(American Society of Civil Engineers, 1999)This paper derives an analytical solution for a three-slab system resting on a Pasternak foundation. Joint transfer between slabs is considered in the analysis. The basic equations are based on Reissner's thick-plate theory, ...