Finding suitable location to Built Health Center

Prepared by: Rin Channara

Net ChannaSo TheavyMao SocheataCheun Phala

using Spatial Analysis Tool in GIS

Date : 12-Dec-2005

Agenda

1. Introduction2. Stating problem3. Break down the problem4. Performing Analysis5. Result6. Conclusion

Introduction Stating problem Break down the problem ResultPerforming Analysis

Introduction

-In srok Peareang (Prey veaeng Province) lack Health Centers in other khums.-People difficultly go to Health Center (far a way

from 3-4 Kilometers).-So I chose the Tool in GIS for analysis this

project.

Introduction Stating problem Break down the problem ResultPerforming Analysis

Stating the Problem

My problem is to find the suitable location for siting a new health center in srok peareang (Prey veaeng province).

The result is a map showing potential sites (ranked best to worst).

Introduction Stating problem Break down the problem ResultPerforming Analysis

Breaking down the Problem

Best siteFor new Health Center

Near the high population

A way fromExisting health centers

Built onAgriculture land ,…

Near theRoad

Introduction Stating problem Break down the problem ResultPerforming Analysis

Diagram Process Best site

For new Health Center

Calculate distance Calculate density

Population

Density Population

Health Centers

Distance Health Centers

Roads

Distance from Roads

Land Use

Raster Land Use

Convert to Raster

Introduction Stating problem Break down the problem ResultPerforming Analysis

Near the high population

It is preferable to locate the new Health center close to high population.

So we need to create a map displaying the density of population.

By using : Density functionPicture: Density

Introduction Stating problem Break down the problem ResultPerforming Analysis

Near the high population

Introduction Stating problem Break down the problem ResultPerforming Analysis

Near the high population

Introduction Stating problem Break down the problem ResultPerforming Analysis

Near the high population

Before After

Introduction Stating problem Break down the problem ResultPerforming Analysis

A way from Existing health centers

We want to site new health centers a way from existing health centers.

So we need to create a map displaying the distance to health centers.

By using : StraightLine functionPicture: StraightLine

Introduction Stating problem Break down the problem ResultPerforming Analysis

A way from Existing health centers

Introduction Stating problem Break down the problem ResultPerforming Analysis

A way from Existing health centers

Introduction Stating problem Break down the problem ResultPerforming Analysis

A way from Existing health centers

Before After

Introduction Stating problem Break down the problem ResultPerforming Analysis

Near the Road

To find area that near the road to make easy for people to find it.

So We need to create a map to display the distance from the nearest to far a way .

By using : StraightLine function

Introduction Stating problem Break down the problem ResultPerforming Analysis

Near the Road

Introduction Stating problem Break down the problem ResultPerforming Analysis

Near the Road

Introduction Stating problem Break down the problem ResultPerforming Analysis

Near the Road

Before After

Introduction Stating problem Break down the problem ResultPerforming Analysis

Built on Agriculture land ,…

A agricultural land is considered the least costly to built on and therefore the most preferable. The Barren land is next, then move on …

This process is convert form feature to Raster and ,just identify the land use are most preferable to built on.

Picture: Convert (feature->Raster)

Introduction Stating problem Break down the problem ResultPerforming Analysis

Performing Analysis

After we just broke down problem.We move on to reclassify(Reclassify

function) all elements and combine by using function Raster Calculator.

There are two ways to find the best location for built new health center :- combining all elements by provide

each a percentage influence.- Query

Introduction Stating problem Break down the problem ResultPerforming Analysis

Diagram Process Reclassify

Density PopulationDistance Health CentersDistance from RoadsRaster Land Use

Reclassify

Reclassify Land Use Reclassify Road Reclassify Health Center Reclassify Density

Introduction Stating problem Break down the problem ResultPerforming Analysis

Reclassify Distance of Population

Picture: Reclassify

Before After

Introduction Stating problem Break down the problem ResultPerforming Analysis

Reclassify Distance of Health Center

Before After

Introduction Stating problem Break down the problem ResultPerforming Analysis

Reclassify Distance of Road

Before After

Introduction Stating problem Break down the problem ResultPerforming Analysis

Reclassify Distance of Road

No Data

Before After

Introduction Stating problem Break down the problem ResultPerforming Analysis

Performing Analysis

When We reclassified all elements , we need use Raster Calculator function .

We need to provide the number of percentage influence :

- Land use : 0.15 (15%)- Road : 0.15 (15%)- Health Center : 0.30 (30%)- Density population : 0.40 (40%)Picture: Raster Calculator

Introduction Stating problem Break down the problem ResultPerforming Analysis

Result

Introduction Stating problem Break down the problem ResultPerforming Analysis

Conclusion

- The result is one level. Lack Data Lack technique to analysis and use tools- But GIS is useful to display data for both

presentation and analysis as well (ability to process data) .

Thank You for attends