الفهرس 
Introduction and Literature SurveyOnly 14 pages are availabe for public view
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Abstract
Road tunnels play an important role in forming the key road network
which links communities together. One of the major requirements of a road
tunnel, in terms of drivers’ safety, is the efficient ventilation of tunnel. Air
velocity, contaminant concentration, temperature and humidity are the
parameters which affect the performance of tunnel ventilation system.
This research reviews types of road tunnel ventilation systems, equations
of calculating the traffic volume , and the required ventilation rate for road
tunnels.
In view of the above, the authors have deduced equations to predict air
velocity, contaminant concentration, air temperature and humidity along the
tunnel length.
This study is applied on Ahmed Hamdi Tunnel, located at 17 km north of
Suez city and crossing under the Suez Canal in the Arab Republic of Egypt. The
distribution of the above parameters along the tunnel length are obtained in
present time (actual traffic volume), war case and compared with design case.
It was suggested that a semi-transverse system is to be executed within
Ahmed Hamdi Tunnel. By applying the proposed system, the energy
consumption can be saved.