- Access the historical maps of Singapore on https://libmaps.nus.edu.sg/
- Get the students to zoom into a section of the Singapore Map.
- Enable the view of the selected historical map.
- Use the slider to control the level of transparency of the historical map over the present map.
- Students can observe the changes in their neighbourhood - observing the spatial association, distribution and interconnection.
This would have been useful in analysing landuse changes as secondary data.
Updated 2024 Nov
2024 Geography 2279 Paper 1
Evaluate the usefulness of the 2 maps , which show land use in Pasir Panjang in 1975 and 2023, as sources of information about land use change. [6]
Useful
• Provide a clear and immediate visual representation of how land has been utilized between 1975 and 2023. This allows for quick comparisons between past and present land use patterns. For example, it can be seen that the land has been reclaimed with Pasir Panjang container terminal had extended towards the sea in the 2023 map which is absent in the 1975 map.
• Enable the identification of trends over time, such as the expansion of the roads with addition of Harbour Drive along the coastal land shown on the 2023 map.
• It shows the extent of impact as the size and distance is shown by the scale on the maps.
Not useful
• Maps have insufficient contextual information, such as the reasons behind land use changes.
• The classification of land use can be subjective, and different mapping methodologies may lead to inconsistencies in how land uses are defined or categorized, potentially affecting the reliability of comparisons. In the case of the 1975 map, it is a topographical map which shows topography/height of the land above sea level but the 2023 map is a street map which shows more details such as the names of road and viaducts but does not show the height of the land above sea level.
• Depending on the frequency of updates, land use maps may not reflect the most current conditions.
No comments:
Post a Comment