Field Study:
Nablus CBD City
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Building traffic database for Nablus CBD city
(using GIS program)
Traffic Analysis (Capacity and level of service)
at intersections
Achieving a comparison between two volume
counts (Before Tunnel (BT) & After Tunnel
(AT) )
Attempting to connect HCS with GIS program
automatically
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Building Of Database
Database may be defined as data collection that
stored in computer or in other forms that enables
the users to use these data when they needed; as
in GIS program in this project.
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Scope of the Project
• First Step: Studying the available data
• Second Step: Using AutoCAD maps in planning
• Third Step: Manual Counting at several intersections before
opening the tunnel (BT)
• Fourth Step: Manual Counting at several intersections after
opening the tunnel (AT)
• Fifth Step: Using Microsoft Office Excel
• Sixth Step: Growth factor calculations
• Seventh Step: Using Highway Capacity Software (HCS)
• Eighth Step: Using Geographic Information System Program
(GIS)
• Final Step: Using AutoCAD program in presentation
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Previous Data
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Traffic Volume Counts (BT & AT)
• Manual counts at several intersections in Nablus CBD city.
• These counts were done by students in civil engineering
department.
• The resulting data were arranged and studied well in
special forms.
• Studying the Variations that were occurred after opening
the tunnel
• Manual counts at several intersection after opening the
tunnel
• 42 intersections data are available for analysis
Continue to see more…
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Using Microsoft Office Excel
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Traffic Growth Factor
• Calculating Traffic Growth Factor
For 2 years of counts.
• Result: 13.8% ( in two years of counts)
Continue…There are more!
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Operation Analysis
• HCS was used to fulfill the requirements of
analysis at the intersections.
• The Intersections are as follow:
In general: 42 intersections are available BT and
AT
 Signalized Intersections : 11 intersection BT and
12 intersection AT.
 Unsignalized intersection: 29 intersections AT
and 30 intersection BT.
 Downtown Roundabout.
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GIS Program…
• GIS was used for building database for Nablus
CBD city.
• The collected data are available now using this
program.
• The following Figures explain some outputs of
GIS:
Press Enter To See more ...
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PHV in Intersections
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Conclusions
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42 main intersections
114 traffic links
The length of traffic network about 11240 m
Area of ROW for Nablus CBD city about 162,ooo
square meter
Total CBD area is about 377,000 square meter
The contribution area of ROW =%43
About 71,780 vehicles visited 42 intersections BT
About 75,920 vehicles visited 42 intersections AT
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consideration
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