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Register a new userEvaluating the functional performance of the road network depending on its structure in the residential district (Homs City as an example)
تقييم الأداء الوظيفي للشبكة الطرقية في الحي السكني بالاعتماد على بنيتها (مدينة حمص مثالاً)
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ميسون رشيد( باحث )
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أجري هذا البحث على مدينة حمص–سورية كحالة دراسية، بهدف دراسة بنية شبكة الطرق، و الجدال الدائر حول أكفأ الشبكات وظيفياً, تلك التي تميل للنمط الشبكيgrid)) أم التي تميل للنمط الشجري (tree) أم أنماط أخرى، و للقيام بذلك تم التركيز على مبادئ الأداء الوظيفي لشبكة الطرق و التي يمكن تلخيصها بالتالي: (التقاربية – النفاذية – الأمان). و العمل على تحديد مؤشرات الأداء الوظيفي المشتقة منها، و طرق قياسها، و كانت هذه المؤشرات (نسبة عدد الخلايا إلى عدد النهايات المغلقة {Cell / Cul ratio} -عدد التقاطعات الثلاثية إلى الرباعية {{T / X ratio– المسافة بين المركز و الأطراف – عدد الخلايا في وحدة المساحة-الهرمية). تم تطبيق مؤشرات الأداء الوظيفي على حالات الدراسة (الأحياء المنظمة و الضواحي السكنية). و تبين أن شبكة الطرق يجب أن تتمتع بتقاربية و نفاذية متوسطة لشبكة الطرق، و عالية لشبكة المشاة. لذلك فإن أنماط الشبكات المرشحة لتكون أكفأ وظيفياً هي التي تحمل سمات النمطين الشبكي و الشجري بشرط أن يؤخذ مبدأ الأمان بعين الاعتبار.
This research has been implemented in Homs city-Syria, in order to study the configuration of the road network in residential district, and the debates about the most efficient pattern in terms of functional performance, treeor grid pattern, or other patterns. In order to do that, it focused on the planning principles of functional performance, which can be summarized to:( proximity, permeability, security). And worked on identifying Accurately the functional performance indicators, and there measuring method, and they were (Cell / Cul ratio – T / X ratio- distant between the center and the periphery - number of cells per unit area –hierarchy). And applied it on the case studies: (organized / newly planned residential districts). It turns out that the road network should have a medium proximity and permeability for traffic,while it should be high for pedestrian. Therefore,the network patternCandidate forbetterfunctional performance when it's nearly in the mid-way between (tree and grid).
References used
Southworth, M; Ben, E. Streets and the Shaping of Towns and Cities.1st ed, Island Press, Washington DC,1997,208
Biddulph, M. Introduction to Residential Layout. 1st ed, Elsevier Limited,United Kingdom, 2007, 241
Byrne, J. Neighborhood Design in Australia. Housing3 Symposium,Riyadh, 20-23 May 2007
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