Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 2681-2700 of 4147
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Dynamic Wavelet Neural Network Model for Traffic Flow Forecasting
(American Society of Civil Engineers, 2005)Accurate and timely forecasting of traffic flow is of paramount importance for effective management of traffic congestion in intelligent transportation systems. In this paper, a novel nonparametric dynamic time-delay ... -
Improvements to G4(RW) Strong-Post Round-Wood, W-Beam Guardrail System
(American Society of Civil Engineers, 2005)Strong-post round-wood W-beam guardrail, G4(RW), is a common longitudinal barrier used in Texas. Recent crash tests on the system demonstrate its effectiveness in containing and redirecting a -
Modeling Vehicle Emissions in Hot-Stabilized Conditions Using a Simultaneous Equations Model
(American Society of Civil Engineers, 2005)The purpose of this study is to incorporate the correlation between different types of emissions into microscale vehicle emissions models. Simultaneous equations models were calibrated for two vehicle categories classified ... -
Planning Urban Highway Reconstruction with Traffic Demand Affected by Construction Schedule
(American Society of Civil Engineers, 2005)This paper introduces an integrated approach to the development of construction and traffic management plans for the reconstruction of high-volume urban freeways. The Devore project, which rebuilds a 4.2 km stretch of the ... -
Effectiveness of Steel Reinforcing Nettings in Combating Fatigue Cracking in New Flexible Pavement Systems
(American Society of Civil Engineers, 2005)This paper investigates the effectiveness of steel paving mesh as reinforcement for hot-mix asphalt (HMA) in new flexible pavement systems. Two sections of the Virginia Smart Road were instrumented and constructed incorporating ... -
Crash Reconstruction Technique for Longitudinal Barriers
(American Society of Civil Engineers, 2005)A procedure for reconstructing run-off-road accidents into longitudinal W-beam guardrail systems was developed by estimating energy dissipation during an impact. Correlations were developed between the vehicle’s departure ... -
Repetitive Loading Effects on Cast Iron Pipelines with Cast-in-Place Pipe Lining Systems
(American Society of Civil Engineers, 2004)This paper focuses on the response of circumferentially cracked cast iron (CI) pipeline with the cast-in-place pipe (CIPP) lining system by evaluating stresses, relative displacements, and rotations generated by repetitive ... -
Comparative Analysis of Household Activity Matching Approaches in Transportation Analysis and Simulation System
(American Society of Civil Engineers, 2004)Transportation Analysis and Simulation System ( -
Use of Soil Stiffness Gauge in Thermoplastic Pipe Installation
(American Society of Civil Engineers, 2004)The soil stiffness gauge is a new tool for measuring the stiffness of a soil layer quickly in the field. It is anticipated that this type of portable device will be utilized in a variety of geotechnical projects in the ... -
Queuing and Statistical Analysis of Freeway Bottleneck Formation
(American Society of Civil Engineers, 2004)A modified approach to treat traffic flow parameters (flow, density, and speed) has been introduced in this paper. A queuing analysis has been conducted on traffic flow data on Interstate 94 in the Minneapolis–St. Paul ... -
Effect of On-Ramp Geometric and Operational Factors on Vehicle Activity
(American Society of Civil Engineers, 2005)The microscopic vehicle activity levels for a random sample of 7,288 vehicles were measured and analyzed for cars and trucks on 26 entrance ramps in Louisville, Ky. Approximately 12.3 million distance measurements were ... -
Effectiveness of Safety Vests in Nighttime Highway Construction
(American Society of Civil Engineers, 2004)Many state agencies are shifting towards nighttime construction/maintenance especially on urban highways. While nighttime construction/maintenance has many advantages, it also has disadvantages compared to daytime construction. ... -
Computer Simulation of Recycled Content Guardrail Post Impacts
(American Society of Civil Engineers, 2004)Guardrail posts made of recycled plastics are becoming candidates for use in roadside safety features due to the nature of exhibiting properties that are useful in absorbing energy. Relatively few studies have specifically ... -
Transit Network Design with Variable Demand
(American Society of Civil Engineers, 2005)This paper shows the iterative approach to solving transit network design problem, particularly with variable transit demand under a given fixed total demand. Although recent studies, which use a simplified combinatorial ... -
Impact of Reduced Vertical Separation Minimum Implementation on Airport System Infrastructures
(American Society of Civil Engineers, 2004)This paper explores the impact of the reduced vertical separation minimum (RVSM) implementation on the airside of a large-airport system infrastructure. The hypothesis is that the frequencies of aircraft operations at the ... -
Understanding Drivers’ Route Choice Under Long-Term Pretrip and Short-Term En-Route Traffic Information Using Generalized Estimating Equations
(American Society of Civil Engineers, 2004)This paper addresses two drivers’ route choice paradigms by modeling the factors that affect drivers’ compliance with a long-term pretrip advised route and modeling drivers’ usage of en-route short-term traffic information. ... -
Truck Safety Factors on Urban Arterials
(American Society of Civil Engineers, 2004)Despite the high percentage of large truck trips on Interstate roadways, only 24% of fatal truck crashes occurred on these roadways. About 59% of large truck fatal crashes occurred on undivided highways that do not have ... -
Evaluation of Buried Piping Restrained Against Thrust
(American Society of Civil Engineers, 2004)It is common practice to resist hydraulic thrusts in buried piping by the use of restrained joints. The most common design method currently in use for restraint design was proposed by Roger Carlsen and is currently ... -
Impact of Sign Orientation on On-Premise Commercial Signs
(American Society of Civil Engineers, 2005)Storefront signs are often the end point of the information system travelers use to navigate the street and highway system to arrive at commercial destinations. To test the supposition that larger parallel signs would be ... -
Truck Performance Curves Reflective of Truck and Pavement Characteristics
(American Society of Civil Engineers, 2004)The paper utilizes a linearly increasing variable power vehicle dynamics model to develop the