نتایج جستجو برای: سیستم WIM
تعداد نتایج: 74834 فیلتر نتایج به سال:
نیاز به توسعه و به دنبال آن افزایش درخواست ظرفیت حمل بار در کشور و محدودیتهای موجود در برخی موارد منجر به تغییر آیین نامههای مربوطه میشود. تغییر در مقررات حمل بار و افزایش تناژ عبوری از مسیر با توجه به عدم تطابق با طرح روسازی های در حال بهرهبرداری، موجب وارد شدن آسیبهای جدی به سازه روسازی خواهد شد. بنابراین هدف این پژوهش بررسی تاثیر اصلاح مقررات حمل بار در سال 1390 و اضافه بارها...
In the past twenty years, states have utilized Weigh-in-Motion (WIM) technology to reduce delay and increase enforcement of overweight vehicles. The authors simulated the operation of a weigh station by VISSIM, a microscopic, time step, and behavior based traffic simulation software. This study evaluated weigh station design and operational strategies using simulation under different design str...
The smoothness of the pavement surface approaching a Weigh-In-Motion (WIM) scale directly affects the device’s ability to accurately estimate static loads from measured dynamic forces. Lack of smoothness creates difficulties in obtaining an acceptable weighing error. Efforts were made in this study to determine appropriate threshold values of profile length and roughness approaching the WIM. Ro...
This paper describes the procedures for development of signal analysis algorithms using artificial neural networks for Bridge Weigh-in-Motion (B-WIM) systems. Through the analysis procedure, the extraction of information concerning heavy traffic vehicles such as weight, speed, and number of axles from the time domain strain data of the B-WIM system was attempted. As one of the several possible ...
In the 1990‟s, during the background works of Eurocode 1991-2 (Traffic loads on bridges), extreme loads and extreme load effects have been evaluated by using WIM data recorded at various European locations. The most used WIM data file is a WIM data record, 2-week long, recorded at Auxerre on a French heavy trafficked motorway in 1986. Today, WIM records are longer and much more accurate, thanks...
Abstract—Currently, there are few user friendly Weigh-inMotion (WIM) data analysis softwares available which can produce traffic input data for the recently developed AASHTOWare pavement Mechanistic-Empirical (ME) design software. However, these softwares have only rudimentary Quality Control (QC) processes. Therefore, they cannot properly deal with erroneous WIM data. As the pavement perform...
Many of today’s wireless devices apply the Wireless Application Protocol (WAP). To fully implement the security features that WAP defines, a Wireless Identity Module (WIM) is required within the client device. This paper describes a prototype WIM implementation running on a Java-based smart card and presents an evaluation of this WIM application focusing on its resource consumption and the exec...
The World in Miniature (WIM) metaphor allows users to interact and travel efficiently in virtual environments. In addition to the first-person perspective offered by typical VR applications, the WIM offers a second dynamic viewpoint through a hand-held miniature copy of the virtual environment. In the original WIM paper the miniature was a scaled down replica of the whole environment, thus limi...
We present a new joint analysis of pulsar dispersion measures and diffuse Hα emission in the Milky Way, which we use to derive the density, pressure and filling factor of the thick disk component of the warm ionised medium (WIM) as a function of height above the Galactic disk. By excluding sightlines at low Galactic latitude that are contaminated by H II regions and spiral arms, we find that th...
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