Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 2441-2460 of 4147
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Highway User Travel Time Evaluation
(American Society of Civil Engineers, 2007)Improved highway networks result in net benefits to society, of which the reduction in travel time is one of the most important. Similarly, the delay in travel due to construction and maintenance operations represents a ... -
Structural Response of Concrete Pavements under Moving Truck Loads
(American Society of Civil Engineers, 2007)While there has been a great deal of research conducted on concrete pavement performance and deterioration under static loads, only very limited research has been carried out on its dynamic response. Furthermore, opinions ... -
Unified Approach to Thrust Restraint Design
(American Society of Civil Engineers, 2007)The design of thrust blocks for water pipelines and sewer force mains vary from one pipe material or standard to another just like the design of pipe wall thickness. This creates tremendous confusion among consulting ... -
Deterioration Analysis of Flexible Pavements under Overweight Vehicles
(American Society of Civil Engineers, 2007)In this paper, the influence of overloading on the operational life of flexible pavements is discussed, leading to the development of a deterioration model for pavement and a ticketing formulation for overweight vehicles. ... -
Effects of Pressure and Aging in SATS Test
(American Society of Civil Engineers, 2007)The saturation aging tensile stiffness (SATS) test has been developed to quantify the moisture damage of a range of U.K. asphalt mixtures. In order to combine the effects of moisture and aging, the test is undertaken at ... -
Effectiveness of Blank-Out Overhead Dynamic Advance Warning Signals at High-Speed Signalized Intersections
(American Society of Civil Engineers, 2007)Advance warning signals are installed upstream of high-speed signalized intersections to warn motorists of impending signal changes. A new advance warning signal design was tested on an approach to a high-speed signalized ... -
Effect of Gradation on Nonlinear Stress-Dependent Behavior of a Sandy Flexible Pavement Subgrade
(American Society of Civil Engineers, 2007)The development of a simple method to estimate in situ resilient modulus properties of sandy subgrade soils is described in this paper based on gradation properties, granular base to asphalt concrete pavement thickness ... -
G-EMME/2: Automatic Calibration Tool of the EMME/2 Transit Assignment Using Genetic Algorithms
(American Society of Civil Engineers, 2007)This research presents an automatic procedure for calibrating transit-assignment model parameters. The calibration process targets the optimal set of parameter values by ensuring that the assignment output volumes match ... -
Modeling Crossing Behavior and Accident Risk of Pedestrians
(American Society of Civil Engineers, 2007)This paper presents a methodology for modeling pedestrians’ crossing behavior along an urban trip, as well as an algorithm for the estimation of accident risk along the trip. For that purpose, existing models are exploited ... -
Willingness-to-Pay and Preference Heterogeneity for Rural Bus Attributes
(American Society of Civil Engineers, 2007)This paper presents estimations of willingness-to-pay (WTP) values in the context of rural bus service in a developing country. Using stated choice data collected from rural bus users, WTP values are estimated by developing ... -
Environmental Effects on the Predicted Service Life of Flexible Pavements
(American Society of Civil Engineers, 2007)Mechanistic-empirical pavement design methods for flexible pavements are based on the assumption that pavement life is inversely related to the magnitude of the traffic-induced pavement strains. These strains vary with the ... -
Wet-Pavement Hydroplaning Risk and Skid Resistance: Modeling
(American Society of Civil Engineers, 2007)The risk of hydroplaning and reduction of skid resistance are two major safety concerns in wet weathering traffic operations on highways and runways. The writers earlier developed an analytical computer model to simulate ... -
Impact of Left-Turn Phasing on Older and Younger Drivers at High-Speed Signalized Intersections
(American Society of Civil Engineers, 2007)The study reports on research that evaluated the impact of different types of left-turn phasing on older and younger drivers at high-speed signalized intersections. Using Poisson regression, the likelihood that a driver ... -
Overview of the First Ten Years of the Minnesota Road Research Project
(American Society of Civil Engineers, 2007)The Minnesota Department of Transportation began construction on the Minnesota Road Research Project (MnROAD) in 1991 and opened the full-scale pavement research facility to live traffic in 1994. Since the time of its ... -
New Algorithm for Calculating 3D Available Sight Distance
(American Society of Civil Engineers, 2007)The importance of considering three-dimensional (3D) sight distance in geometric design has been demonstrated by several researchers. However, little progress has been made in the use of 3D analysis in the design of highways. ... -
Proposed Method to Determine the Flow Number in Bituminous Mixtures from Repeated Axial Load Tests
(American Society of Civil Engineers, 2007)Researchers report the number of cycles corresponding to the lower strain rate in a permanent deformation test, known as flow number (FN), as a good asphalt mix stability indicator; however, its variability has limited its ... -
Effect of Weigh-in-Motion System Measurement Errors on Load-Pavement Impact Estimation
(American Society of Civil Engineers, 2007)Weigh-in-motion (WIM) technology has found increasing application in the highway and transportation areas for traffic data collection for the purpose of highway capacity analysis, aiding enforcement and, most recently, ... -
Use of Superpave Gyratory Compaction Data for Rutting Prediction
(American Society of Civil Engineers, 2006)This paper presents the estimation results of an improved nonlinear rutting progression model for asphalt concrete mixes. Rutting is modeled as a function of traffic, temperature, and mix characteristics, including voids ... -
Concerns about Methodology Used in Real-World Experiments on Transport and Transport Safety
(American Society of Civil Engineers, 2007)Real-world experiments in which some experimental units (e.g., people or roadway sites or vehicles) are randomized to treatment and others to no treatment are increasingly regarded as practicable and desirable. This is the ... -
Discussion of “Multiobjective Vehicle Routing and Scheduling Problem with Time Window Constraints in Hazardous Material Transportation” by Qiang Meng, Der-Horng Lee, and Ruey Long Cheu
(American Society of Civil Engineers, 2006)