SMT201 AY2019-20G2 Ex1 Melanie Tan Ri Fang

Part One: Thematic Mapping

Level of Schools

From the map, primary and secondary schools are much more in numbers as compared to JC and mixed levels.I have chosen 4 different symbols to represent the different schools. It is evident that there are more primary and secondary schools thus I had to increase the size of the mixed level and JC and centralised institutions to make it more visible from the map. I also chose to use catergorised mapping which is able to show the viewers exactly which area is the schools located at.

Road Network System

I chose to use a thicker line to show the major road and relatively thinner lines to display the slips roads and contour lines. This is to help the user to see the general major roads in Singapore at one glance. In addition, to also make the expressway more visible, I chose a neon color to make it stand out apart from the major roads as I feel these 2 roads are the most commonly used . This is displayed on an outline map of Singapore instead of the MP14 Landuse where some roads which are in the map itself may end up confusing the viewer. Thus, I feel this contrast to show the road hierarchy in Singapore is the best.

Part Two: Choropleth Mapping

2010 Population Aged 65+

800px

calculated elderlies aged 65 and above before adding in to QGIS. The darker the colors, the more densely populated the area is with regards to elderly.

2018 Population Aged 65+

Calculated the aged65 and above in the excel sheet before adding it to QGIS. Then using the graduated function, the display on the map shows the spread of elderlies that are 65 years old and above. As seen on the map, the darker the colours, the more elderlies that are above 65 are staying around that area. It can be seen that there are more darker colours seen on the east side of the map, thus we can safely conclude that the east side of Singapore resides a lot of elderlies.