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日期： 11月 06, 2023

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Assignment 1

The map shows the location of Hong Kong's traffic infrastructure and safety information. 1. Location and occupancy status of non-metered on-street parking spaces installed with sensors 2. Junction Black site List 3. Availability of EPD owned electric vehicle chargers in government vehicle parks 4. Route list for Traffic Impact Assessment for roadworks Through this map, we can provide drivers with information to obtain relevant information for planning before going out. > Write (within 300 words) about your observation of the datasets of this website and evaluate their usefulness for future GIS projects. This website provides the convenient, easily accessible, high-quality, standardized, and up-to-date spatial information and services for free download and use by the public. The website offers a wide range of datasets that can be used for various GIS projects. The datasets are organized into different categories, such as administrative boundaries, transportation, en...

Assignment 4

(a) Perform a Raster Merge on the four satellite images of FAS_China3.tiff, FAS_China4.tiff, FAS_China5.tiff and FAS_China6.tiff. (b) Perform a Raster Extract covering the areas of the Taiwan Strait and Taiwan Island. (c) Use the vector data for the boundaries of Taiwan's cities and counties. (d) Display air pollution data for Oct and Nov (2012), using Pseudocolor; Spectral (Blue to Red). (e) Perform Raster Calculator to display the change of pollutants between those two months. (f) Suggest some parts of Taiwan that are less hazardous to stay/live during those bad air quality days. According to the data, it represented that 3 districts are suitable to stay/live during those bad air quality period in Oct and Nov. The PM10 index in these areas is <=115. 1. Northern part of "南投縣", 2. The area between "嘉義市"、"南投縣" and “高雄市" 3. Northern part of "台東縣"

Assignment 3

Part A. The above map shows that the proposed grocery store expansion should be located nearby the road sections of 國中街, 興中路, and 忠孝路. Purple areas are villages with a population >=2,500 inhabitants and there are no other grocery store within 500 meters. The yellow areas are schools in Madou District. Due to the large flow of people near the school, parents and students have high demand for groceries. Based on the above factors, we recommend 國中街, 興中路, and 忠孝路 as an extension area. Part B. QuickOSM provides a user-friendly interface to execute custom queries in QGIS to get OSM data. I can easily filter out the information I need, such as schools, movie theaters, parking lots, bakeries, etc. I only need to enter keywords and locations to search, which is very convenient. However, due to regional differences, there are also differences in the completeness of the data. There is quiet little data about the Madou area. For example, there is no data o...

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