310
obtained from the accumulated weight classification. The decreasing accumulation of
weights is based on criteria matrix weight. Vulnerability mapping results indicate there
are four different areas, namely high-prone, medium-prone, low-prone and not no-prone.
The Analysis of the Correlation Between Level of Education with Community
Preparedness in Flood Prone Area The analysis was done by using statistical
data processing statistical tests, i. e. product moment correlation
, with the formula Hadi. S, 1996, 1998:
R
xy
=
∑ ∑
∑
Explanation: r
xy
: correlation index numbers r product moment
x
2
: amount of deviation scores after X squared
y
2
: amount of deviation scores after Y squared
a. The Map of the Flood Prone Area
Level of Flood Hazard Map The map of lahar hazard levels represents
patterns and distribution of the element of danger. Determination of hazard areas is done by
overlaying maps of the river buffer and land use maps see Table 2, 3and 4 and Figure 1.
Table2. River Buffer of District Batu Benawa Regency Hulu Sungai Tengah
River Buffer Number of
Buildings
1 – 300
1490 39. 58
2 300 - 600
224 5. 95
3 600 - 900
208 5. 52
4 900
1843 48. 95
Sum 3765
100. 00 Source: Analysis and Processing Buffer
River Map, 2016 Table3. Land Use District Batu Benawa Regency
Hulu Sungai Tengah Land Use
Area Hectare
1 Forest
1291 23. 75
2 Garden
97 1. 78
3 Field
249 4. 59
4 Settlement
160 2. 95
5 Paddy Field
1313 24. 15
6 Shrubs
2024 37. 23
7 Water
35 0. 65
8 Vacant Land
267 4. 91
Jumlah 5437
100. 00 Source: Analysis and Processing Map of
Land Use, 2016 Based on the results of an River Buffer
overlay map and the Land Use Map can be seen that the most extensive area of high hazard i. e.
46. 63 of the entire study area. Areas that are in the no-hazardand low-hazardarea can be used for
evacuation or for referrals of settlement for the people who live in high-hazard and moderate-
hazard area.
Tabel4. Flood Hazard Level District Batu Benawa Regency Hulu Sungai Tengah
Flood HazardLevel
Area Hectare
1 High
302 5. 56
2 Moderate
450 8. 28
3 Low
1783 32. 79
4 No Hazard
2902 53. 37
Jumlah 5437
100. 00 Source: Analysis and Processing Flood
Hazard Map Level, 2016 Map of Building Blocks Houses
The map of building blocks houses represents
the geographic
situation of
hazardelement. Settlement is one of the basic human needs. The settlements are healthy and
livable is the right of every human being. That right, however, can not to be fulfilled after the
flood. Many houses were damaged by the flood, damaged sanitation, hard access to clean water
causing to lack of beauty and health of a settlement. The previous residences which are
thought to be safe from disaster turned out to have an impact that is not unexpected as was the
case in the district Batu Benawa.
Along the river in District Batu Benawa is functioned as densely populated areas. Number
offairly dense population along the river in District Batu Benawa create new problems when
the floods occur i. e. the damage of the settlements. Settlement residents along the river
in District Batu Benawa can be obtained from the interpretation of high-resolution images see to
Figure 2.
Along the river in District Batu Benawa is including densely populated areas and flood
hazard area. Information on the number of houses located in flood hazard areas can be seen
in Table 5. Overall, the number of houses in the no-hazard area are 183 houses or 4. 86 of total
houses in the study area. The no-hazard area is away from the source of the disaster. The house
located in a high-hazars level are 1482 39. 36. High hazard area possibly can be spread if floods
occur with greater force. Houses map at every level of the hazard of flooding in the area of
research can be used to determine the mitigation measures to be undertaken. Mitigation efforts to
be undertaken are expected to minimize the
311
impact of floods. Refer to that facet, the low- hazard and no-hazard area can be used as the
location of residential development or as a refuge for people living in high-hazard and moderate-
hazard area when floods occur again.
Figure 2. Building condition Along the River in the Regional Research Table 5. Number of House on Every Level Regional Flood Hazard on Research Area
No. Flood Hazard Level
Number of Houses
1 High
1482 39. 36
2 Moderate
369 9. 80
3 Low
1731 45. 98
4 No-hazard
183 4. 86
Sum 3765
100 Source: Analysis and Processing House Map and Flood Hazard Level Map, 2016
312
Figure 2. Building condition Along the River in the Regional Research
The Map of Altitude Altitudere
presents a
specific geomorphology situation. Altitude between 12.
5 meters will be more vulnerable to flood flows. Flood flow will tend to overflow towards the
lower regions. Floodflow have an energy force that is large enough, to damage houses in the
vicinity. The flow of the floods that occurred in the study area had overflowed from the main
river channels. The flood damaged and soaked residential buildings houses in its path. Most of
the settlements in the area of research is in altitude 12. 5-25 meters see Table 6 and Figure
3.
Table 6. The Altitude Map and Total Houses in Research Area
Altitude Total
Houses
1 12. 5 m
2396 63. 64
2 12. 5 - 25 m
1285 34. 13
3 25 - 50 m
64 1. 70
4 50 m
20 0. 53
Sum 3765
100 Source: Analysis and Processing Map of Altitude and
Total Building Blocks House, 2016
Map Overlaying Using SIG andMap of SIG Process Results
Maps overlaying is one of the facilities of the GIS software which is to perform spatial
analysis Kumalawati, 2012, 2013. Overlaying process is a process of overlaying thematic maps
which were then analyzed based on the weight of each theme. Based on the total weight of the final
results of the process will be a map that contains mosaic maps that have weights. Weights are then
combined and delineated based on a predetermined weight range. Thematic maps
have been prepared in this study subsequently entered value of its weight and overlayed one by
one.
Thematic maps that will be overlayed to be the map of the level of flood-prone area is 1 the
map of the level of flood hazard represent patterns and distribution the element of hazard,
2 the map of the house represents the situation of the geographical element of hazard, and 3 The
Map altitude represents a place or situation specific geomorphology. Once the whole process
is carried out, the maps of flood prone area level will be obtained see Table 7, Table 8, and Figure
4.
Figure 3. Altitude in Regional Research
313
Table 7. Flood Prone Area Level District Batu Benawa Regency Hulu Sungai Tengah
Flood Prone Level
Area Hectare
1 High
660 12. 14
2 Moderate
1310 24. 09
3 Low
1456 26. 79
4 No-prone
2011 36. 98
Jumlah 5437
100. 00 Source: Results of Field Measurement and Treatment,
2016
Table 8. Map of Houses in Every Level of Prone in the Research Area
Flood Prone Level
Number of Houses
1 High
1776 47. 17
2 Moderate
1738 46. 16
3 Low
235 6. 24
4 No-prone
16 0. 42
Jumlah 3765
100
Source: Results of Field Measurement and Treatment, 2016
Figure 4. Map Flood Prone Area Levelin the Research Area
Big Flood occured in Regency Hulu Sungai Tengah. Hulu Sungai Tengah several
times hit by the floods. It proves that the Regency Hulu Sungai Tengah is classified as
flood-prone areas. Worst-affected region in Regency Hulu Sungai Tengah is in District Batu
Benawa. All regions in District Batu Benawa prone to flood i. e. High-prone, Medium-prone,
Low-prone and No-prone see to Figure 4. The result of the research shows that most of the
investigated flood prone areas 63. 02 .
b. The Correlation Between Level of
