Transcript Cambodia road

Team Members:
Mr. Chea Chathav Ms. Keo Khenalen
Mr. Mao Chhyfa
Ms. Thea Chanthy
Mr. Sorn Rithysak
Contents
1.Introduction
2.Methodology
3.Results
4.Discussion
5.References
Introduction
 1.8 million registered vehicles today. [7]
 9.6 million out of 15 million of the population is in
between the driving age of 16 – 65 year olds. [7]
 Cambodia continues to experience rapid development
and economic growth. [7]
 The estimated number of vehicles will reach 2.6
million in 2018 and 3.9 million in 2023. [7]
 With such rapidly growing numbers of vehicles, there
is a risk of increasing number of fatal road accidents if
the issue of emergency response is not addressed.
Introduction (cont.)
Traffic Accidents Chart (First Half Year)
7000
6000
6349
5,418
5272
5000
4,331
4000
3000
2,362
2,254
2000
1,287
941
931
1000
1,075
1,200
1,054
0
2010
2011
Total Accidents
2012
Injured
2013
Death
Source: English.news.cn & phnompenhpost.com
 The absolute number of road accidents has decreased in the past years.
 Challenges like speeding, drunk driving, bad road conditions, insufficient
health care and unenforced traffic laws have led to an increase in fatal
accidents, and the annual cost of 3.5 % of GDP (500milions USD). [7]
Introduction (cont.)
 What we want to do is to create a map which
will show the nearest hospital to the scene of
accident.
 Purposes:
 Inform the public of the closest hospitals.
 Help emergency responding centers to take a
good and quick decision.
 Offer a possible way to reduce the time delay
between accident and start of medical
treatment
2. Methodology
2. Methodology (Cont.)
Data used:
 Road Dataset (Source: OpenstreetMap)
 Phnom Penh Hospitals (Source: OSM data, hand-
held GPS)
 Only
hospital which serve for ambulance service
were added to analysis.
2. Methodology (Cont.)

We will adopt the Network Analysis in ArcGIS desktop to
solve the problem.

Step 1:
o
Assigning Topology rules for OSM road dataset
Must Not Self-Overlap, Must Not Overlap, Must Not Have Dangle
o

Fixing Topology errors in ArcMap
Step 2:
o
Fixing crossing errors (merge and split at intersections
of road dataset)
2. Methodology (Cont.)
 Step 3:
Due to the time constraint, we did not mention some of road
conditions such as One-way road, Turning, Restriction, etc.
Although we assigned average Travel Speeds to road data
according to road types as below:
• 55 km/h for Primarily roads and Secondary roads
• 50 km/h for Tertiary roads
• 40 km/h for Residential roads
Adding Travel Time to road data
• ((([LENGHT] /1000) / [SPEED]) *60)
2. Methodology (Cont.)
• Step 4:
•
Creating Road Network Dataset
 Step 5:
• Creating Hospital Service Areas using Travel Time
(Minute) as impedance of the analysis setting, and break the
value of 5, 10, 30 minutes.
3. Result
 The map shows the
covered area for each
hospital in Phnom
Penh, Cambodia.



Green: 5 minutes area
from each hospital
Orange: 10 minutes
area for each hospital
Red: 30 minutes area
for each hospital
3. Result (cont.)
• Another output map which
was produced with lower
travel speed of ambulance.
o 40 km/h for Primarily
roads and Secondary
road
o 35 km/h for Tertiary
roads
o 30 km/h for Residential
roads
4. Discussion
 Road data, We decided to use OSM data which is an open-
source data. However, the quality and accuracy of data is
still considerable.
 In the future, we hope to improve the results of this project
by using more accurate travel times and data (e.g. road
conditions, traffic density, one-way streets etc.)
 It will take time and budget to cover more area in
Cambodia.
5. References
 Chamreoun, S. (n.d.). Define Optimal Path of Fire Response by Using GIS





in Phnom Penh. Cambodia: Royal University of Agriculture.
Tong, X. (2011, July 14). Road accidents claim over 940 lives in Cambodia
in past 6 months. Retrieved July 24, 2013, from http://news.
xinhuanet.com/english2010/world/2011-07/14/c_13984385.html
help.arcgis.com: Network Analyst. (2012, February 2). Retrieved July 24,
2013,
from
http://help.arcgis.com/en/arcgisdesktop/10.0/help//
004700000035000000
Openstreetmap.la: Cambodia road. (2013, July 1). Retrieved July 24, 2013,
from http://www.openstreetmap.la/downloads/cambodia/roads.shp.
zip
Kunthea, M. (2013, July 3). Road accidents drops in 2013. Retrieved July
24, 2013, from http://www.phnompenhpost.com/national/roadaccidents-drop-2013
Wilson, K. (2013, May 20). Serious Efforts Are Needed to Tackle Cambodia ’s
Traffic Issues. The Cambodia Daily. Retrieved from http://www.
cambod iadai ly.com