2. Introduction
Highway network plays a crucial role in the
development and economic of the urban areas,
and any disruption of the operation on the
network at one location will create a domino effect
on the system as a whole.
Therefore Incident(crisis) management must be
considered in the design and planning process.
To study the adequacy of the existing network
after a critical event-earthquake- the use of a
geographic information system is essential.
3. objectives
To create a GIS model for the street
network and for the earthquake effect on
it.
Study the possible route for evacuation
of schools to the safe areas like
hospitals, medical centers.
5. Methodology
Building the street network model.
The street network is the most important element in
the whole process therefore a complete
representative model must be accomplished,
therefore the center line for every street will de
modeled except for the multilane and wide streets,
there models will be composed of more than one
center line to be more realistic, and to have more
realistic results.
9. Methodology
creating the earthquake model.
In this process the buildings and their heights was
estimated using an approximate method, this method
depends on the number of water meters at every
building, the meters will determine the apartment
number in the building and the area of the building will
determine how many apartment in every floor.
Also the critical sloped areas was identified and a
rough estimate was used to project their effect on the
streets
10. Analysis
Earthquake simulation:
The earthquake simulation process will be a buffer
process and the buffer value for the buildings will
depend on the rise of the building, and the buffer
value for the slopes will be assumed to be 3 meters
this assumption is far away to be true for all the
areas.
11.
12. Analysis
Two earthquake models:
Partial damage:
The buffer value will be one third of the building
height.
Total damage:
The buffer value will be two third of the building
height.
13. Analysis
The schools location will be loaded to the network
from existing shape file, and The hospitals,
medical centers locations will be loaded from
existing shape file.
These two shape files will be used in closest
facility analysis using the street network that
was prepared
