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Showing 1 to 16 of 16 for “"Weigh-in-Motion (WIM)"”.
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Review of South African live load models for traffic loading on bridge and culvert structures using weigh-in-motion (WIM) data
This thesis uses the axle weights and axle spacings of heavy vehicles recorded by weigh-in-motion (WIM) sensors to calculate the load effects on single lane, simply supported structures spanning up to 30m. The main objective was to compare the load effects caused by the recorded vehicles with those …
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Correlation Of Acoustic Emission Parameters With Weight And Velocity Of Moving Vehicles
The thesis is motivated by the goal of doing initial investigation and experimentation for the development of Weigh-in-Motion (WIM) system using acoustic emission phenomenon. A great deal of research is going on for measuring the weight of moving vehicles. Weigh-in-motion of commercial vehicles is …
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Utah Commercial Motor Vehicle Weigh-in-Motion Data Analysis and Calibration Methodology
In preparation for changes in pavement design methodologies and to begin to assess the effectiveness of the weigh-in-motion (WIM) system in Utah, the Utah Department of Transportation (UDOT) contracted with a Brigham Young University (BYU) research team to conduct an evaluation of their commercial …
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Operational effects of weigh-in-motion systems in weight enforcement
The effects of weigh-in-motion (WIM) systems on traffic operations and weight enforcement were compared and evaluated. The systems studied included high speed WIM, medium speed WIM and conventional static scales alone. The major measurements of effectiveness were traffic delay, queue, and the …
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Field and Modeling Framework for Evaluating Truck Weigh Station Operations
Weigh-in-Motion (WIM) systems improve the capacity of weigh station operations significantly by screening trucks while traveling at high speeds and only requiring trucks within a threshold of a maximum permissible gross of axle weight to be weighed on more accurate static scales. Consequently, the …
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Artificial Intelligence Driven Infrastructure Management and Maintenance Plan
<p>Rapid development in trucking technology and increasing demands in freight transportation has led to longer and heavier vehicles traveling on Florida’s highway system. Vehicles with gross vehicle weight (GVW) over 80,000 pounds, or permit vehicles, have significant effects on infrastructure, …
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Fiber-optic sensors for weigh-in-motion application
Automated techniques to acquire weight and traffic data are indispensable to effective management and maintenance of the vast network of highways. Weigh-In-Motion (WIM) systems have the potential to greatly reduce the cost and improve the accuracy associated with weight data collection. The …
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Shear Reliability Analysis of Reinforced Concrete Bridges Designed to TMH7
In South Africa, road freight is a leading participant in freight transit compared to other modes of transport. This leads to increased heavy vehicle traffic and significant deterioration of road infrastructure. The Technical Manual for Highways 7 (TMH7) design code, published in 1981, is the code …
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Weigh-in-Motion Auto-Calibration Using Automatic Vehicle Identification
<p>Weigh-in-Motion (WIM) sensors are installed on mainline lanes at highway locations to record vehicle weights, axle spacing, vehicle class, travel speed, vehicle length, and traffic volume. These data elements support effective transportation planning, infrastructure design, and policy …
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Integrated transportation monitoring system for both pavement and traffic
In the passing decades, the monitoring of pavements and passing vehicles was developed vigorously with the growth of information and sensing technology. Pavement monitoring is an essential part of pavement research and plays an important role in transportation system. At the same time, the …
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Auto-Calibration of WIM Using Traffic Stream Characteristics
<p>This project evaluates the performance of Weigh-in-Motion (WIM) auto-calibration methods used by the Arkansas Department of Transportation (ARDOT). Typical auto-calibration algorithms compare the WIM measured weights of vehicles from the traffic stream to reference values, using five-axle …
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Characterization of Ohio Traffic Data for Integration into the Mechanistic-Empirical Pavement Design
The MEPDG requires a multitude of traffic inputs to be defined for the design of pavement structures. These inputs include (a) base-year traffic data such as the initial two-way annual average daily truck traffic (AADTT), (b) traffic volume adjustment factors (directional and lane distribution …
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Evaluation of New Weigh-in-Motion Technology at the Virginia Smart Road
Weigh-in-Motion (WIM) systems have improved the process of collecting data from heavy vehicles on the U.S. highway system and enforcing the laws that govern vehicle weights. The benefits of WIM are reaped by everyone from highway designers and voernments officials, to truck drivers and …
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Characterization of traffic load and local calibration of the MEPDG for New Mexico
In the Mechanistic-Empirical Pavement Design Guide (MEPDG), traffic loading is more complex and precise than in the old AASHTO 1993 Guide. Traffic load in MEPDG is characterized by a larger number of traffic inputs such as Annual Average Daily Truck Traffic (AADTT), traffic growth, traffic …
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New Truck Loading Model For Rural Bridges In Saskatchewan
ABSTRACT In rural municipalities in Saskatchewan, there are approximately 1700 bridges, many of which were constructed in the 1950s to 1960s and are therefore nearing the end of their expected service life. Evaluations for those bridges are therefore needed to make cost-effective decisions on …