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Transportation Research Part C: Emerging Technologies
Adaptive Weigh-in-Motion Algorithms for Truck Weight Enforcement2012 •
2008 •
This research investigates the best way to enforce the truck size and weight limits and by doing so decrease the damage that is being done to Oklahoma's roads and bridges. In the process a survey of all state DOT's was conducted to help determine the state of the art for cost effective and the most efficient mix of fixed weigh stations, mobile enforcement, weigh in motion (WIM), virtual enforcement, and possible other technology to provide optimum monitoring of Oversize/Overweight vehicles to reduce damage to Oklahoma's roads and bridges. Recommendations are offered concerning the construction of Point of Entry (POE) Facilities, mobile enforcement and virtual enforcement within the state of Oklahoma. A novel data collection system, the OU-BWIM is proposed to help determine the location of intrastate virtual and mobile enforcement locations. The proposed development of the OU-BWIM would help convert existing infrastructure assets, bridges, into weigh in motion, real time,...
Transportation Research Record
Truck Delay and Traffic Conflicts Around Weigh Stations: A Case Study in Illinois1999 •
Transportation Research Record
Truck Travel Time Around Weigh Stations: Effects of Weigh in Motion and Automatic Vehicle Identification Systems2000 •
Weigh in motion (WIM) technology may provide an efficient and cost-effective complement to static weighing. An evaluation of the effectiveness of an automated bypass system around a weigh station in Illinois is presented. The system combines the use of automatic vehicle identification (AVI), high-speed weigh in motion (HSWIM), and low-speed weigh in motion (LSWIM) technologies to facilitate preclearance for trucks at the weigh station. The preinstallation conditions were compared with post-installation conditions of WIM/AVI so that the effects and benefits of the system could be evaluated. During preinstallation, average delay was 4.9 min/truck, and 7 percent of trucks had delays of more than 10 min. The station was intermittently closed to prevent the truck queue from backing up onto the Interstate highway, allowing 15 to 51 percent of trucks to bypass the station without being weighed. In postinstallation, the delay for trucks equipped with transponder and allowed to bypass on the...
The paper presents a methodology for evaluating weigh station operations. The methodology was used to evaluate operations at the Stephens City Weigh Station in Virginia for demonstration purposes. The model uses WIM screening accuracy, calibration, and demand as inputs with enforcement and delay measures as outputs. The methodology combines a Monte Carlo simulation for computing truck volume distribution between static scale and bypass lanes and the INTEGRATION microscopic simulation model for the evaluation of weigh station operations. The study demonstrated the adequacy of the Monte Carlo type of simulation for computing truck volume distribution between static scale and bypass lanes. Furthermore, the study demonstrated the efficiency of the INTEGRATION software for modeling of weigh station operations. By using the results of the model, decision-makers can determine enforcement and delay goals for the weigh-in-motion system being analyzed to develop a compromise between these two...
Open Engineering
Limitations of the effectiveness of Weigh in Motion systems2020 •
Overloaded vehicles pose a real threat to road safety and significantly contribute to the degradation of the road surface. High-Speed Weigh in Motion (HS-WIM) stations are the commonly used method of eliminating them from traffic. In Poland, HS-WIM stations operate in pre-selection mode, sending information to services about the potential exceedance of acceptable standards by a specific vehicle. The article presents the results of the data analysis from selected HS-WIM stations operating on the national road network in Poland indicating significant limitations of the effectiveness of the whole system. The main reason for this may be that carriers use the knowledge about the HS-WIM stations location and working time to avoid inspections. The results presented in the paper indicate, among other things, that in some locations the share of vehicles overloaded with traffic increases significantly outside the working hours of the controlling services. For Light Commercial Vehicle, the sha...
Sustainability
Method for Setting Weight Tolerance Limits in High-Speed Weigh-in-Motion Systems: A Case Study in BrazilHigh-speed weighing systems are considered a potential tool to restrain overloaded vehicles traffic, since this practice promotes threats to the infrastructure’s durability and to citizens’ safety. In view of the discussion on the certification of such systems, a method to define the weight tolerance limits of heavy goods vehicles was proposed in this work, using statistical experimentation methods. The method was applied to a case study in Brazil, which considered a high-speed weighing system and three known vehicles (3C, 2S3, and 3S3). The vehicles were loaded with gravel and the bending plate scale was used to set the weight. The test was conducted by checking the weight of the vehicles in the HS-WIM system and composed by the observance of three mandatory speeds (60, 70, and 80 km/h), in three different lateral positions in relation to the lane (center, left, and right), and at various times during the collection days. As result, maximum weights accuracy limits were obtained for...
11th ITS European Congress, Glasgow
Vehicle's Weigh‐in‐Motion system for enforcement in Poland2016 •
The authors have initiated in 2013 a group within the Intelligent Transportation Systems Cluster, which brought together Polish government offices, universities, research institutes and commercial companies. Goal of this group is to apply vehicle’s Weigh-in-Motion systems for direct mass enforcement. Practical implementation of this idea is subject to the following conditions: defining detailed procedures for legalization and metrological control of WIM systems (test conditions), and defining technical requirements for such WIM systems. Both problems have been described in the paper.
Dynamic weighing devices are designed to measure the weight of a vehicle while it is moving over a scale at different speeds. So unlike static scales, there is no need to stop the vehicle for accurate weighing; this makes the weighing process more efficient. One such dynamic weighing system is Weigh-In-Motion (WIM) vehicle scales, which estimate vehicle axle loads without affecting the flow of traffic. WIM technologies allow trucks to be weighed in the traffic flow, without any disruption to operations. WIM scales are used in two categories: high speed and slow speed weighing systems. Slow speed WIM scales are used in law enforcement to screen trucks entering a weigh station; legally loaded vehicles are allowed back onto the road while over-weight trucks are directed to the static scales. WIM scales are also used in virtual weighing stations to monitor traffic, identifying those vehicles with weight violations and sending their image and weight information wirelessly to an officer located downstream of the scale site. Still other in-motion vehicle scales are used to weigh bulk commodities where real-time information on the flow of material is required.
Η ΛΙΧΑΝΟΣ στη στήλη των αρμονικών
Η ΛΙΧΑΝΟΣ στη στήλη των αρμονικών2024 •
Bibliothecae.it
Giorgio Montecchi, Storie di biblioteche di libri e di lettori , Milano, Franco Angeli, 20182018 •
1. Pozitif Okullar Ve iyi Oluş Kongresi "Bebeklikten Ergenliğe iyi Oluş TAM METIN BILDIRILER KITABI
DERSLER BAĞLAMINDA VE DERSLERDEN BAĞIMSIZ ÖZGÜVEN ALGILARI İLE BAŞARI ARASINDAKİ İLİŞKİLER2023 •
2015 •
Problems of Friction and Wear
АНАЛІЗ МОДЕЛЕЙ ТА МЕТОДІВ ОЦІНКИ МІЦНІСТНИХ ХАРАКТЕРИСТИК ПОЛІМЕРНИХ КОМПОЗИЦІЙНИХ МАТЕРІАЛІВFrontiers in Ecology and Evolution
Contrasting energy pathways suggest differing susceptibility of pelagic fishes to an invasive ecosystem engineer in a large lake system2023 •
Al Hakam
Hazrat Mirza Bashir-ud-Din Mahmud Ahmad's guidance and support to leaders of the Pakistan Movement2021 •
International Journal on Advanced Science, Engineering and Information Technology
Corrosion Behaviour of Titanium β Type Ti-12Cr in 3% NaCl Solution2019 •
Journal of Gastroenterology
Burn injury sensitizes rat Kupffer cells via mechanisms dependent on gut-derived endotoxin2004 •
Environmental Science and Pollution Research
Amelioration of aluminum-induced hepatic and nephrotoxicity by Premna odorata extract is mediated by lowering MMP9 and TGF-β gene alterations in Wistar rat