Difference between revisions of "SMT201 AY2018-19T1 EX2 Tan Jie Ting Christine"
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=== Accessibility Factor === | === 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. | 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. | ||
| − | I assume that for the site to be accessible, the site must be at least 200m away from local roads. | + | I assume that for the site to be accessible, the site must be at least 200m away from local roads. |
| + | I used a binary model, where I gave a score of 1 for the areas that were within 200m from a local road, and a score of 0 for the areas that were more than 200m away from a local road. | ||
=== Health Risk Factor === | === 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. | The selected site should be away from population i.e. housing areas and offices in order to avoid disease spreading to the nearby population. | ||
I assume that for the site to be sufficiently far away from buildings, it needs to be minimally 250m away from buildings. | I assume that for the site to be sufficiently far away from buildings, it needs to be minimally 250m away from buildings. | ||
| + | I used a binary model, where I gave a score of 1 for the areas that were at least 250m away from buildings, and a score of 0 for the areas that within 250m away from a building. | ||
=== Natural Conservation Factor === | === Natural Conservation Factor === | ||
| − | The selected site should be away from forested land, park and water. I assume that for the site to be sufficiently far away from natural conservation sites, the site must be at least 200m away from natural sites. | + | The selected site should be away from forested land, park and water. |
| + | I assume that for the site to be sufficiently far away from natural conservation sites, the site must be at least 200m away from natural sites. | ||
| + | I used a binary model, where I gave a score of 1 for the areas that were at least 200m away from natural sites, and a score of 0 for the areas that within 200m away from a natural site. | ||
| + | |||
=== Final Output === | === Final Output === | ||
Revision as of 00:27, 4 November 2019
Contents
Part 1: Decision Factors
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. According to Legal Eagle Contractors, Co. [1], "Less than 10% incline is considered slight and is the easiest to build on, while 11-20% is considered moderate. Anything above 20% is deemed steep.". Hence, I used that as the measure to deem if an area is too steep for building the site.
Using the following matrix, I used a ranked model to compute a score for the economic factor.
| Percentage of Incline | Score |
|---|---|
| Less than 10% | 2 |
| 10-20% | 1 |
| More than 20% | 0 |
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. I assume that for the site to be accessible, the site must be at least 200m away from local roads. I used a binary model, where I gave a score of 1 for the areas that were within 200m from a local road, and a score of 0 for the areas that were more than 200m away from a local road.
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. I assume that for the site to be sufficiently far away from buildings, it needs to be minimally 250m away from buildings. I used a binary model, where I gave a score of 1 for the areas that were at least 250m away from buildings, and a score of 0 for the areas that within 250m away from a building.
Natural Conservation Factor
The selected site should be away from forested land, park and water. I assume that for the site to be sufficiently far away from natural conservation sites, the site must be at least 200m away from natural sites. I used a binary model, where I gave a score of 1 for the areas that were at least 200m away from natural sites, and a score of 0 for the areas that within 200m away from a natural site.
Final Output
I used the Raster Calculator to calculate the final scores to deduce where would be the best area to build the site, with the formula "Accessibility@1" + "Economic_Rank@1" + "HealthRisk@1" + "Natural_Binary@1".
References: [1] https://legaleaglecontractors.com/building-house-on-slope-challenges/
