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Register a new userAnalysis of Present Serviceability and its Relation to International Roughness Inde× (the Syrian Case)
تحليل قابلية خدمة الطرق و علاقتها بقرينة الاستوائية (حالة دراسة سورية)
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تعد قابلية الخدمة مؤشراً على مستوى الخدمة الذي توفره الطـرق لمسـتخدميها و يمكـن استنتاجها من خلال استبيان لآراء هؤلاء المستخدمين فتسمى تقدير قابلية الخدمة الحاليـة (PSR) أو من خلال قياس عيوب سطح الطريق فتسمى قرينة قابلية الخدمة الحالية (PSI). في هذا البحث أُجريتْ قياسات فيزيائية لعيوب سطح الغطاء الطرقي بهدف استنتاج قرينـة قابلية الخدمة الحالية (PSI) وفقاً لطريقة الآشتو، و ذلك لثلاث من الطرق العامة في سورية و هي دمشق– حمص, دمشق– الحدود الأردنية, دمشق– الحدود اللبنانية. كما تـم إجـراء استبيان لآراء مستخدمي هذه الطرق بهدف استنتاج تقدير قابلية الخدمـة الحاليـة (PSR) و بيان العلاقة بين (PSI) و (PSR)، و أخيراً تم قياس استوائية هذه الطرق للحصـول علـى قرينة الاستوائية الدولية (IRI) و استنتاج العلاقة بين كل من (PSR) , (IRI) و تحديد قيمـة (IRI) المقبولة ضمن ظروف الاستثمار في سورية.
Serviceability is an indicator that represents the level of service a pavement provides to users. This indicator is obtained by a rating made by the users, we called it Present Serviceability Rating (PSR), or by measuring on the pavement’s surface then its called a Present Serviceability Index (PSI). In this research we make a physical measurements to the distresses of pavement’s surface, and use the collected data to calculate (PSI) according to the AASHTO design method. We selected three highways as a field study: (Damascus–Lebanon Border, Damascus– Jordan Border, and Damascus – Homs). Also we made a rating by evaluating user’s opinions to a questionnaire in order to get (PSR) and find the Relationship between (PSI),(PSR), then we measured the roughness of this selected roads to obtain the International Roughness Index (IRI), finally we used the results to define the relationship between (PSR ),( IRI) and the accepted value of (IRI) within The Syrian conditions.
Artificial intelligence review:
Research summary
تتناول هذه الورقة البحثية تقييم أداء الطرق باستخدام عدة مؤشرات منها مؤشر الخدمة الحالي (PSI) ومؤشر الخدمة الحالي (PSR) ومؤشر الخشونة الدولي (IRI) وتباين الميل (SV). تستعرض الورقة منهجية البحث التي تتضمن جمع البيانات وتحليلها، وتحديد العلاقة بين هذه المؤشرات المختلفة. كما تقدم الورقة عدة معادلات رياضية لحساب هذه المؤشرات بناءً على البيانات المجمعة من الطرق المختلفة. تهدف الدراسة إلى تحسين فهم أداء الطرق وتقديم توصيات لتحسينها بناءً على النتائج المستخلصة من التحليل.
Critical review
دراسة نقدية: تقدم هذه الورقة البحثية تحليلاً شاملاً لأداء الطرق باستخدام مؤشرات متعددة، مما يعزز من دقة التقييمات. ومع ذلك، يمكن تحسين الدراسة من خلال تضمين المزيد من البيانات الميدانية من مناطق جغرافية مختلفة لضمان تعميم النتائج. كما أن التركيز على تأثير العوامل البيئية والمناخية على أداء الطرق يمكن أن يضيف قيمة إضافية للدراسة. بالإضافة إلى ذلك، يمكن تحسين العرض البصري للبيانات والرسوم البيانية لتسهيل فهم النتائج.
Questions related to the research
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ما هو الهدف الرئيسي من هذه الدراسة؟
الهدف الرئيسي هو تقييم أداء الطرق باستخدام مؤشرات مختلفة مثل PSI وPSR وIRI وSV، وتقديم توصيات لتحسينها.
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ما هي المنهجية المستخدمة في جمع البيانات؟
تم جمع البيانات من خلال قياسات ميدانية لمؤشرات الخشونة وتباين الميل ومؤشرات الخدمة الحالية، وتحليلها باستخدام معادلات رياضية محددة.
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ما هي التوصيات المقدمة في الدراسة؟
توصي الدراسة بتحسين الطرق بناءً على النتائج المستخلصة من تحليل المؤشرات المختلفة، والتركيز على تحسين الخشونة وتقليل تباين الميل لتحسين أداء الطرق.
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ما هي العلاقة بين مؤشر الخشونة الدولي (IRI) ومؤشر الخدمة الحالي (PSI)؟
توجد علاقة رياضية بين IRI وPSI تم تحديدها في الدراسة، حيث يمكن استخدام IRI لحساب PSI باستخدام معادلات محددة.
References used
AASHTO "Guide for Design of Pavement Structure (1993)" Published by the American Association of State Highway and Transportation Officials
E.J Yoder. M.W.Witczak "Principles of Pavement Design", Second Edition. Published by John Wiley and Sons, Inc. 1975
W.N. Carey and P. E. Irick, "The Pavement Serviceability Performance Concept", Highway Research Board. Record, 1960
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