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Register a new userEvaluation multi-measures of traffic performance for two- way, two- lane rural roads
تقييم متعدد المعايير للأداء المروري للطرق الريفية بحارتين باتجاهين
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تشكل الطرق الريفية قسماً كبيراً من شبكة الطرق الموجودة خارج المدن و خاصةً تلك المكوّنة من حارتين باتجاهين، و يعتبر تقييم الأداء المروري للطرق الريفية بحارتين باتجاهين عملية معقدة بسبب الخصائص التي تتميز بها هذه الطرق، حيث تم ادخال العديد من معايير الأداء من قبل العديد من الباحثين لتناسب الظروف المحلية لبلدانهم. قدّم هذا البحث تقييم عملي للعلاقة بين الأداء التشغيلي و ظاهرة تشكل الرتل على الطرق الريفية بحارتين باتجاهين في محافظة طرطوس. تم تحديد و حساب ستة معايير للأداء و ثلاثة متغيرات لتشكل الرتل و ذلك لعشرة مواقع باستخدام بيانات المرور من الطرق الريفية في منطقة الشيخ بدر في محافظة طرطوس، حيث تمت دراسة الترابط بين معايير الأداء و متغيرات تشكل الرتل باستخدام التحليل البياني و الإحصائي. كما تم فحص متغيرات تشكل الرتل و وجد بأنّ الغزارة بالاتجاه المباشر (اتجاه الحركة) لها الارتباط الأقوى مع معايير الأداء، و أكدت النتائج الإجمالية أن كثافة التتابع هو المعيار الأكثر توصيفاً للعلاقة بين الأداء المروري و بين تشكل الرتل و يعد مناسباً لدراسة الأداء التشغيلي.
The rural roads are a large part of the existing roads network, particularly that consisting of two-lane. Evaluation of traffic performance for two-way, two-lane rural roads is complex process due to their characteristics. Many performance measures were introduced by many authors in many countries to fit the local conditions. This research presents an empirical evaluation of the relationship between operational performance and platooning phenomenon in rural two-lane roads in Tartous. Six performance measures and three platooning variables were defined and calculated for ten study sites using traffic data from rural roads in Ash-Shaykh Badr region of Tartous governorate. Using graphical and statistical analyses, the associations between the performance measures and the platooning variables were examined. The platooning variables investigated, traffic flow in the direction of travel has the highest correlations with performance measures. As the overall findings confirmed that the follower density is the most characterization of the relationship between traffic performance and platooning, which is suitable for the study of operational performance.
Artificial intelligence review:
Research summary
تناول البحث تقييم الأداء المروري للطرق الريفية ذات الحارتين باتجاهين في محافظة طرطوس، سوريا. تم تحديد ستة معايير للأداء وثلاثة متغيرات لتشكل الرتل في عشرة مواقع باستخدام بيانات المرور من منطقة الشيخ بدر. أظهرت النتائج أن كثافة التتابع هي المعيار الأكثر توصيفاً للعلاقة بين الأداء المروري وتشكيل الرتل. تم استخدام التحليل البياني والإحصائي لدراسة الترابط بين معايير الأداء ومتغيرات تشكيل الرتل. وأكدت النتائج أن الغزارة بالاتجاه المباشر لها الارتباط الأقوى مع معايير الأداء. كما أوصت الدراسة باستخدام كثافة التتابع كمعيار لتقييم الأداء المروري على الطرق الريفية ذات الحارتين باتجاهين.
Critical review
دراسة نقدية: يعتبر هذا البحث خطوة مهمة نحو فهم أفضل للأداء المروري على الطرق الريفية ذات الحارتين باتجاهين. ومع ذلك، يمكن تحسين الدراسة من خلال تضمين المزيد من المتغيرات المتعلقة بالخواص الهندسية للطرق مثل الميول الحادة والمنعطفات. كما أن الاعتماد على بيانات من منطقة واحدة قد لا يكون كافياً لتعميم النتائج على مناطق أخرى ذات ظروف مرورية مختلفة. يُنصح بإجراء دراسات إضافية تشمل طرقاً من أصناف مختلفة (I و III) وذات حجوم مرورية أعلى لتعزيز النتائج.
Questions related to the research
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ما هي المعايير الستة للأداء التي تم استخدامها في الدراسة؟
المعايير الستة هي: معدل سرعة الرحلة (ATS)، معدل سرعة الرحلة لعربات الركاب (ATSpc)، معدل سرعة الرحلة كنسبة من سرعة الجريان الحر (ATS/FFS)، معدل سرعة الرحلة لعربات الركاب كنسبة من سرعة الجريان الحر لعربات الركاب (ATSpc/FFSpc)، نسبة التتابع (PF)، وكثافة التتابع (FD).
-
ما هو المتغير الذي وجد أنه الأكثر ارتباطاً بمعايير الأداء؟
الغزارة بالاتجاه المباشر (اتجاه الحركة) هو المتغير الذي وجد أنه الأكثر ارتباطاً بمعايير الأداء.
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ما هي التوصية الرئيسية التي قدمها البحث لتحسين تقييم الأداء المروري؟
التوصية الرئيسية هي استخدام كثافة التتابع كمعيار لتقييم الأداء المروري على الطرق الريفية ذات الحارتين باتجاهين.
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ما هي الفجوات التي يمكن تحسينها في الدراسة؟
يمكن تحسين الدراسة من خلال تضمين متغيرات إضافية متعلقة بالخواص الهندسية للطرق مثل الميول الحادة والمنعطفات، واستخدام بيانات من مناطق وطرق مختلفة لتعزيز تعميم النتائج.
References used
DURBIN, C. Traffic performance on two-lane, two-way highways: Examination of new analytical approaches. Montana state university, Bozeman, Montana, June, 2006, 7-15
HASHIM, I; ABDEL-WAHED,T. Evaluation of performance measures for rural two-lane roads in Egypt. Alexandria Engineering Journal 50, Egypt, 2011, 245– 255
KARJAL, S. R. Estimating Quality Of Traffic Flow On Two-Lane Highways. Montana State University Bozeman, Montana , July 2008, 1-8
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