کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
292715 511043 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Automated pavement horizontal curve measurement methods based on inertial measurement unit and 3D profiling data
ترجمه فارسی عنوان
روش اندازه گیری خودکار منحنی افقی پیاده‌رو بر اساس واحد اندازه گیری درونی و داده های پروفایل سه بعدی
کلمات کلیدی
منحنی افقی؛ واحد اندازه گیری درونی (IMU)؛ شعاع منحنی؛ روش Kinematic؛ روش هندسی؛ روش شتاب جانبی؛ تست ANOVA؛ تجزیه و تحلیل ایمنی منحنی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی

Pavement horizontal curve is designed to serve as a transition between straight segments, and its presence may cause a series of driving-related safety issues to motorists and drivers. As is recognized that traditional methods for curve geometry investigation are time consuming, labor intensive, and inaccurate, this study attempts to develop a method that can automatically conduct horizontal curve identification and measurement at network level. The digital highway data vehicle (DHDV) was utilized for data collection, in which three Euler angles, driving speed, and acceleration of survey vehicle were measured with an inertial measurement unit (IMU). The 3D profiling data used for cross slope calibration was obtained with PaveVision3D Ultra technology at 1 mm resolution. In this study, the curve identification was based on the variation of heading angle, and the curve radius was calculated with kinematic method, geometry method, and lateral acceleration method. In order to verify the accuracy of the three methods, the analysis of variance (ANOVA) test was applied by using the control variable of curve radius measured by field test. Based on the measured curve radius, a curve safety analysis model was used to predict the crash rates and safe driving speeds at horizontal curves. Finally, a case study on 4.35 km road segment demonstrated that the proposed method could efficiently conduct network level analysis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Traffic and Transportation Engineering (English Edition) - Volume 3, Issue 2, April 2016, Pages 137–145
نویسندگان
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