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Using GPS for Determining Level of Service for major and minor collectors in Lattakia City Center

استخدام نظام تحديد المواقع العالمي GPS لتحديد مستوى الخدمة على شوارع مركز مدينة اللاذقية

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 Publication date 2014
and research's language is العربية
 Created by Shamra Editor




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Lattakia City has faced many negative impacts of the extending crisis that Syria lives, such as defensive arrangements of most governmental facilities, and refuging millions of other Syrian cities citizens. This new situation was reflected on the traffic conditions on most streets and roads of city, especially on center streets. In addition it caused many traffic congestions, which led to investigate and analyze the current situation and finding traffic solutions for reducing these congestions on center streets. In this paper, the “moving observer” concept was used to measure travel time and average speed on major and minor collectors in Lattakia center. The vehicle was equipped with a GPS to collect necessary information, a number of trips was executed during daily peak period and free flow speed; then the data was processed and analyzed to generate max, min, and average speeds, constructing LOS for these streets. Study disclosed low values of LOS for some major collectors in the city, and expressed the need to take urgent arrangements to increase LOS on streets. The efficiency of “moving vehicle” concept was proved in implementing traffic studies.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة تأثير الأزمة السورية على حركة المرور في مدينة اللاذقية، حيث تسببت النزاعات والنزوح الكبير للسكان في زيادة الازدحامات المرورية. استخدمت الدراسة مفهوم 'المراقب المتحرك' لقياس أزمنة الرحلة والسرعة الوسطية على الشوارع الرئيسية والثانوية في مركز المدينة باستخدام جهاز GPS. تم تنفيذ عدة رحلات خلال فترات الذروة وفترات الجريان الحر، وتم تحليل البيانات لرسم خرائط توضح أزمنة الرحلة وحساب السرعات الأعظمية والدنيا والوسطية. أظهرت النتائج تدني مستوى الخدمة على بعض الشوارع الرئيسية، مما يستدعي اتخاذ إجراءات عاجلة لتحسين مستوى الخدمة. كما أثبتت الدراسة فعالية استخدام 'المراقب المتحرك' في الدراسات المرورية بدقة وكفاءة عالية، وتوفير الوقت والتكلفة.
Critical review
دراسة نقدية: تقدم هذه الدراسة تحليلاً شاملاً لمشكلة الازدحام المروري في مدينة اللاذقية باستخدام تقنيات حديثة مثل GPS وGIS. ومع ذلك، يمكن الإشارة إلى بعض النقاط التي قد تحتاج إلى تحسين. أولاً، قد تكون البيانات المجمعة محدودة بفترة زمنية معينة، مما قد يؤثر على دقة النتائج على المدى الطويل. ثانياً، لم تتناول الدراسة بشكل كافٍ تأثير العوامل البيئية والمناخية على حركة المرور. ثالثاً، يمكن أن تكون هناك حاجة لمزيد من الدراسات الميدانية لتأكيد النتائج وتقديم حلول أكثر شمولية. وأخيراً، قد يكون من المفيد تضمين آراء المستخدمين المحليين والسائقين لتحسين دقة التوصيات المقدمة.
Questions related to the research
  1. ما هو الهدف الرئيسي من هذه الدراسة؟

    الهدف الرئيسي هو تحليل تأثير الأزمة السورية على حركة المرور في مدينة اللاذقية واستخدام تقنيات GPS وGIS لتحديد مستوى الخدمة على الشوارع الرئيسية والثانوية في مركز المدينة.

  2. ما هي التقنية المستخدمة لجمع البيانات في هذه الدراسة؟

    تم استخدام جهاز GPS لجمع البيانات من خلال مفهوم 'المراقب المتحرك' الذي يقيس أزمنة الرحلة والسرعة الوسطية على الشوارع.

  3. ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟

    أظهرت الدراسة تدني مستوى الخدمة على بعض الشوارع الرئيسية في مدينة اللاذقية، مما يستدعي اتخاذ إجراءات عاجلة لتحسين مستوى الخدمة.

  4. ما هي التوصيات التي قدمتها الدراسة لتحسين مستوى الخدمة على الشوارع؟

    أوصت الدراسة باتخاذ إجراءات عاجلة لتحسين مستوى الخدمة، مثل تحسين القدرة التمريرية للشوارع وتأمين مواقف سيارات طابقية أو تحت-أرضية للتقليل من إشغالات الشوارع بالعربات المركونة.


References used
Bing W. K., Khue Q. N., GPS-Based Travel-Time Studies of Florida Roadways, Florida Department of Transportation, Research Project Proposal, 2003
Quiroga C. A., An Integrated GPS-GIS Methodology For Performing Travel Time Studies, Louisiana State university, Ph.D Dissertation, Baton Rouge, LA, 1997, 171p
Mauricio L. C., et al, Travel Time and Delay Analysis Using GIS ang GPS, Eastern Asia Society for Transportation Studies, Proceedings, Vol.4, 2003
Travel Time Data Collection Handbook, Us. Department of Transportation, Federal Highway Administration, Texas Transportation Institute, Report FHWA-PL-98- 035, march 1998
McShane W. R., Roess R. P., Traffic Engineering, Prentice Hall, Inc., Englewood Cliffs, New Jersey. 1990
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