Problems / Issues
There are a number of issues associated with the location analysis of Vancouver International Airport. On one hand, the airport provided by SFU is a line feature (polyline) which is a technical issue. In reality, the airport is an area, so it is necessary to create a polygon to represent it. Another technical issue is that it requires a lot of point data interpolations. These interpolations consume a great amount of time thus it significantly hinder s the core of analysis, which is MCE. MCE is a time-consuming process as well for the fact that there are twelve factors. Weighing these factors is a hideous and lengthy process. Therefore, it is better to comprise less-detail data or fewer factors for analysis. On the other hand, the factors taken into account for this analysis are from the student's perspective. The student may ignore or forget other criteria that should be included in the analysis, or he or she involves personal opinions in choosing and examining existent factors. It is possible that outcomes are inconclusive due to bias or missing constraints and / or factors. Conclusions are as well derived from his or her understanding of GVRD and evaluation factors and thus they are subject to debate. Moreover, the resolution for air quality and noise are different from that of others; it may be due to the fact that they are derived from real-value images (all other factor images are integer-value images). To remedy this problem, the 'window' module is used to reduce the resolution of the other images before proceeding to their fuzzy module.
A number of inferences can be drawn from the image, and the first one is that the airport provides lots of benefits limited to its nearby areas. In fact, areas that are close to the Canada Line obtain the most benefits compared to others. Moreover, areas that are in the vicinity of major highway and other transport routes (roads, not skytrain or bus routes) attain modest advantages from it. A reason to this can be that highways are more direct ways to airport and other places. However, majority of GVRD receive no obvious benefit s. These places can be accessible to bus routes, but they acquire bad air quality (i.e., air pollution). There are also great areas that have disadvantages. Most of them are mountainous areas in northern GVRD that only have a few accessibility means to it. Finally, it is very detrimental to small area s because it has no accessibility and commercial attribute and there is serious environmental degradation. In conclusion, only areas that are very close to the airport earn its locational benefits, whereas a lot others receive no benefit and a few distant small areas obtain its negative impacts.
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