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کنترل خودکار ضوابط ایمنی تابلوهای محدودیت سرعت قبل از قوسهای افقی به کمک سامانه داده برداری پویا | ||
نشریه مهندسی عمران امیرکبیر | ||
مقاله 8، دوره 48، شماره 3، آبان 1395، صفحه 301-314 اصل مقاله (1006.89 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22060/ceej.2016.798 | ||
نویسندگان | ||
مسعود طبیبی* 1؛ محمدرضا کلوشانی2؛ علی فاطمی3 | ||
1استادیار، دانشکده عمران و محیط زیست، دانشگاه صنعتی امیرکبیر | ||
2کارشناسی ارشد راه و ترابری، دانشکده عمران و محیط زیست، دانشگاه صنعتی امیرکبیر | ||
3کارشناس ارشد پردازش سیگنال، دانشکده الکترونیک، دانشگاه NTNU ، تروندهام، نروژ | ||
چکیده | ||
تدوین استراتژیهای مناسب در راستای بهبود ایمنی مسیر، نیازمند اطلاعات کاملی پیرامون مشخصات راه است. سامانه داده برداری پویا به عنوان یکی از روش های بازرسی ایمنی، روندی است که پایگاه جامعی از داده ها شامل تصاویر ویدیویی و اطلاعات جغرافیایی را ارائه می دهد. هدف این مقاله، معرفی روشی خودکار است که علاو هبر تحلیل داده های به دست آمده از این سامانه، ضوابط ایمنی تابلوهای محدودیت سرعت را ارزیابی و با حفظ دقت کافی در این امر، در وقت و هزینه نیز صرفه جویی نماید. روش پیشنهادی در فاز نخست، تحلیل داده های جغرافیایی نقاط محور میانی مسیر به منظور تعیین مشخصات هندسی قوس های افقی و در فاز دوم، پردازش تصاویر ویدیویی، به منظور شناسایی و تشخیص تابلوهای محدودیت سرعت قبل از قوس های افقی را انجام داده و در نهایت، ضوابط ایمنی مرتبط با محل و مقدار درج شده بر تابلوهای محدودیت سرعت قبل از قوس های افقی را کنترل می کند. دقت روش پیشنهادی در فاز نخست، در دو بخش تعیین نقطه آغاز قوس افقی و تعیین شعاع به ترتیب برابر با 97 و 90 درصد و در فاز دوم بر اساس پردازش تصاویر برداشتی و بکارگیری روش طبقه بندی ماشین بردار پشتیبان در دو بخش، شناسایی تابلو و تشخیص مقدار درج شده بر آن به ترتیب برابر با 92 و 97 درصد اثبات شده است. | ||
کلیدواژهها | ||
بازرسی ایمنی مسیر؛ پردازش تصویر؛ تابلوی محدودیت سرعت؛ سامانه داده برداری پویا؛ سامانه موقعیت یاب جهانی؛ قوس افقی؛ ماشین بردار پشتیبان | ||
عنوان مقاله [English] | ||
Introducing automatic control method of speed limit signs safety standards before horizontal curves via Mobile Mapping System | ||
نویسندگان [English] | ||
M. Tabibi1؛ M. R. Koloushani2؛ A. Fatemi3 | ||
1ITS Specialist and Assistant Professor, Civil and Environmental Engineering Department, Amirkabir University of Technology | ||
2M.Sc., Civil and Environmental Engineering Department, Amirkabir University of Technology | ||
3M.Sc., Electronics and Telecommunications Department, Norwegian University of Science and Technology | ||
چکیده [English] | ||
Provision of a safe situation in the road transport has a great importance and might require huge costs. To reach to a safe situation, general and specific information about road specification would be essential and provision of such information might require major costs. Mobile mapping can be addressed as a modern tool by which users (auditors) would be able to do inspection remotely via gathering various data and integration of related data. The main aim of such a research is to automate the required procedure, specially focusing on “allowable speed” signs at horizontal curves. Such automation saves time and money and increases the accuracy of audit via replacing the task of audit from human to machine. In the proposed methodology, two steps might be taken: while in the first phase the geographical data of the centerline will be gathered in the second phase image processing would take place to recognize whether there is a consistency between signs and geometric design of the curve. The data gathered through these two phases will be compared with thresholds addressed in road design manuals to check whether road meets standards or not. The accuracy of the proposed method for horizontal curves was proved to be 90% for the horizontal curve radius calculation and it was 97% for the beginning point of the horizontal curve determination. Besides application of support vector machine leads to 92% accuracy in identification of the signs and 97% accuracy in speed limit distinction. | ||
کلیدواژهها [English] | ||
Automation, Global Positioning System, Horizontal Curve, Image processing, Mobile Mapping System, Road Safety, Road Safety Audit, Speed Limit Sign, Support Vector Machine | ||
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مراجع | ||
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