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Register a new userUse Traffic Conflicts Technique (TCT) to Evaluate Serious Intersections in Damascus
استخدام تقنية التعارضات المرورية TCT لتقييم التقاطعات الخطرة في مدينة دمشق
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إن فكرة التعارضات المرورية لها تاريخ طويل في بحوث السلامة المرورية. و قد أصبحت حوادث السير ظاهرة خطيرة تستنزف بشكل مباشر أو غير مباشر موارد هائلة من الاقتصاد الوطني، و لما كانت التقاطعات مواقع محتملة للنقاط السوداء التي من الممكن أن تسبب حوادث كثيرة، لذلك جاء هذا البحث لدراسة التعارضات المرورية و معرفة أهميتها في تحليل الحوادث المرورية عند التقاطعات المضبوطة بالإشارات الضوئية . طُبَقت تقنية التعارضات المرورية في هذا البحث على تقاطعات رباعية الأذرع مضبوطة بالإشارات الضوئية في مدينة دمشق؛ و ذلك لتقييم سلامة الحركة على هذه التقاطعات، كما جرى تحري العلاقة بين التعارضات و حوادث السير، و بينت النتائج أن الحوادث و التعارضات ترتبط مع بعضها بعضاً بعلاقة خطية، كما أظهرت النتائج أن هناك ارتباطاً لم تتضح طبيعته بين عدد التعارضات في التقاطعات و الغزارات الداخلة على هذه التقاطعات، و قد وضِعتْ أيضاً أولوية للتقاطعات فيما يتعلق بإجراءات السلامة اعتماداً على دليل الخطورة المتعلق بدرجة الضرر.
Traffic Conflict Technique TCT has a long history in traffic safety researches. Traffic accidents are now well known to generate a serious problem that exhausts enormous resources of the national economy either directly or indirectly. Because signalized intersections are potential black spot locations that may cause too many accident this research uses the traffic conflict techniques for analyzing accidents at signalized intersections. In this research, TCT was used at four-leg signalized intersections in Damascus to evaluate safety at these intersections. The relationship between conflicts and accidents was estimated and the results indicated that the conflicts and the accidents are related to each other by a linear regression. Results also showed that the correlation was unclear between conflicts and entry volumes at the intersections. Additionally, priority ranking of these intersections was developed based on risk index that depends on injury level.
References used
M.R. Parker, Jr. and C.V. Zegeer, “Traffic Conflict Techniques for Safety and Operations - Observers Manual ”FHWA-IP-88-027, Federal Highway Administration, Washington, D.C., June 1989
Radin Umar Radin Suhadi “Accident Inviestigation by Conflict Study” Department of Civil and Environmental Engineering University Pertanian Malaysia 26. No.2, 1999
A.Alrefay, Thesis “Safety Evaluation at Signalized Intersections by Traffic Conflicts Technique (TCT)” Damascus University, 2011
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