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������� ���� ������� ����� ����� ���� _ ������������� ����� ������)28 ( �����)2 (2006
Tishreen University Journal for Studies and Scientific Research- Engineering Sciences Series Vol. (28) No (2) 2006
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��� ��( ��!���**
)30/11/2006قبل للنشر في . 2006/ 1/ 2تاريخ ا�يداع (
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Tishreen University Journal for Studies and Scientific Research- Engineering Sciences Series Vol. (28) No (2) 2006
Simulation of Traffic Flow at Unsignalized Intersections
Dr. Nabil Ghazi AL Hazim*
Dr. Ali Janoud**
(Received 2/1/2006. Accepted 30 /11 / 2006)
���� ABSTRACT ����
This research describes a simulation model to simulate the traffic flow at Unsignalized
intersections and determine their optimal function using simulation and queuing theory
technique. All that intends to determine the critical traffic flows and delays at the
intersections and its approaches.
In order to implement the suggested traffic and road solutions or modify them, the
parameters mentioned above are considered the main criteria that determine the level of
service with respect to evaluating the actual traffic and road conditions.
All parameters has been obtained from field observations at many intersections in
Damascus and Lattakia. Model validity has been conducted by comparing simulated results
to field observations.
Key words: Operations Research, Simulation, Queuing Theory, Project Management,
Traffic Engineering, Unsignalized Intersections.
*
Associate Professor, Faculty of Civil Engineering, Engineering and Construction Management
Department, Damascus University, Damascus, Syria. ** Associate Professor, Faculty of Civil Engineering, Engineering and Construction Management
Department, Tishreen University, Lattakia, Syria.
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T ��#�!� $�!%�� &�' ����� *��� �1 $C���� *0�� ���(� ���� M�� �� ��0� >��� .�� ��
)��'�/� *���� �1 ��,��� $ ��: �9� *0�-( .(
T E� ��' ���'A ���� �0S� �1 .�� �%�C� ��(�� �%��!$�(�� ���� )��7� �(��� *� .
T �0W 8,� � )��"� ��(�� ��%,�� ���� ������ ���E $��� ����%� ���<� )��7� )+, ��' *��� .(
T ��,��� $ ��: �9� *0�� �%��! �' I �0�� ���� =���!�� F�� ������ ������ ����� .
B������ :
1- ASHWORTH, R. Simulation of Traffic Delays at T-Junction Various Alternative
Forms of Layout, Simulation, September 1975, 145-148.
2- DENNIS, E. The Effects of Gap-Acceptance Criteria on Merging Delay and Capacity
at Uncontrolled Junctions, Traff. Eng. Control. January 1979, 16-20.
3- Highway Capacity Manual, MCM [2000], Washington 2000.
4- RAJSKI, JANUSE, Modeling and Simulation, Poznan, Poland-1986.
5- S. DATKA, M. Tracz, Traffic Engineering WKT - Poland - Warszawa 1999.
6- Traffic Engineering Handbook, third Edition Washington, USA, 1968.
7- WOLEK, CZESLAW, Vehicle Speed Distribution on the Street Horizontal Curves,
Drogownictwo, Poland 1993.