SMT201 AY2018-19T1 EX2 Lim Jia Yang James

Gombak National Communicable Disease Quarantine Centre

The task was as such- a National Communicable Disease Quarantine Centre had to be constructed in planning subzone Gombak. The contagious area is at least 10,000m2 and it also had to adhere to the following decision factors:

• Accessibility factor: The selected site should be close to existing service roads and tracks.
• Health risk factor: The selected site should be away from population.
• Natural conservation factor: The selected site should be away from forested land, park and water.
• Economic factor: The selected site should avoid steep slope.

Overview Of Gombak With Respect To Its Surrounding Land

Data Source: Master Plan 2014 Subzone Boundary from URA. OpenStreetMap

Breakdown Of Gombak And Its Relevant Features

Data Source: Master Plan 2014 Subzone Boundary from URA. Roads, Buildings and Natural Features data from OpenStreetMap. ASTER Global Digital Elevation Model dataset jointly prepared by NASA and METI, Japan.

Accessibility Factor (Roads)

Construction of a National Communicable Disease Quarantine Centre requires a copious amount of construction materials; hence convenient delivery of these materials to the site is essential. Of all the various paths of travel available, only service roads and tracks have been identified as those of use, of which there are 2 and 186 respectively. Tracks are identified in orange and its lines made thicker than service roads, with the purpose of further differentiating itself. It is keen to note that transport to the north-east regions of Gombak will be done mostly by service roads whereas tracks connects to the south-east region.

Health Risk Factor (Buildings)

Due to the nature of this building, it is crucial to ensure that the selected site should be away from high human density places in order to avoid disease spreading to nearby population. With the data from OpenStreetMap, there were many buildings of "unknown" type. To overcome this, I utilized google maps and other Singapore maps to identify the type of these buildings, which mostly ended up to be either of type "residential" or "military". There are a total of 10 types of buildings in Gombak, with majority (473 of total 523 buildings) being residential. It is keen to note that residential buildings mostly occupy the 7 to 1 o'clock boundary ridges of Gombak, whereas military buildings occupy the centre portion.