SMT201 AY2019-20T1 EX2 Charmine Foo Zhi Min

TAKE HOME EXERCISE REPORT

The Task

In this exercise, you are tasked to identify a location suitable for building a National Communicable Disease Quarantine Centre. The selected site must be located at Gombak Planning Subzone, with a Contiguous Area of at least 10,000m2 and it must meet the following Decision Factors:

1. Economic Factor: The selected site should avoid steep slope. This is because construction at steep slope tends to involve a lot of cut-and-fill and will lend to relatively higher development cost.
   
2. Accessibility Factor: The selected site should be close to existing local roads, namely: service roads and tracks. This is to ensure easy transportation of building materials during the construction stage.
   
3. Health Risk Factor: The selected site should be away from population i.e. housing areas and offices in order to avoid disease spreading to the nearby population.
   
4. Natural Conservation Factor: The selected site should be away from forested land, park and water.

Data Sets

1. Master Plan 2014 Subzone Boundary from URA.
2. Roads, Buildings and Natural Features data from OpenStreetMap (OSM) data sets.
3. ASTER Global Digital Elevation Model (GDEM) dataset jointly prepared by NASA and METI, Japan.
4. Excel-based AHP library - AHP Template provided by SCB Associates

Part One: Gombak in 4 Views

Study Area: Gombak

For the purpose of this exercise, the Gombak Planning Subzone is extracted from the Master Plan 2014 Subzone Boundary from URA which consists of polygon featuring all the planning subzone data of Singapore. In order to do so, the “Select Features by Expression” is used on QGIS.

Gombak And The Target Roads

Using the “Clip” operation on QGIS, the Target Roads within the study area is extracted and allows for the Accessibility Decision Factor analysis as the selected site should be close to existing local roads (Service Roads and Tracks) to ensure the easy transportation of building materials during the construction stage. From the map layout above, the 2 main existing local roads are being colour coded (Purple – Service Roads, Pink – Tracks) and represented using a thicker stroke. Within Gombak, there are 2 Tracks with a total length of around 1861metres and 199 Service Roads with roads such as Gombak Drive, Hillview Avenue, Bukit Panjang Link, Phoenix Avenue, MINDEF Carpark, Lor Ah Thia, Bukit Batok Driving Centre, and Bus Lanes.

Gombak And The Buildings

Using the “Clip” operation on QGIS, the Buildings within the study area is extracted and allows for the Health Risk Decision Factor to be assessed as the selected site should be away from places such as the Housing Areas and Offices to prevent diseases from spreading to the nearby population. From the map layout above, there is a total of 527 buildings within Gombak, with a variety of building type such as Residential, Public, Train Station, Garage, Place of Worship, Construction, and Clinic.

Part Two: Gombak in 4 Views (Proximity)

1. Gombak & Proxmity to Target Roads
2. Gombak & Proximity to Buildings
3. Gombak & Proximity to Target Natural Features
4. Gombak & Slope

a short description of not more than 150 words for each view.

Part Three: Gombak in 4 Views (Criterion Scores)

A map layout with four views showing the criterion scores of each factor layers and a short description of not more than 150 words for each view.

Part Four: AHP Matrix And Result Report

An Analytical Hierarchical Process input matrix and result report and a short description of not more than 150 words discussing the analysis results.

Part Five: Gombak Map Layout With The Suitability Land Lot(s)

A map layout with the suitability land lot(s) and a short description of not more than 200 words commenting on each of the suitable land lot identified.