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from 1907 to 2007
Changes of the Waterway Network on the Eastern Bank of Chao Phraya River from 1907 to 2007
Terdsak Tachakitkachorn studies and identifies the changes of waterway network morphology by comparing the map of Bangkok in 1907 (Figure 10, 12) and the map of Bangkok in 2007 (Figure 11, 13). He categorises changes into three parts: the changes of waterway element, the changes of waterway network and the changes of the characteristics of the waterway.
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The changes of waterway element: major canals after the capital establishment are mostly intact. Secondary canals, which are typically converted from dyke ditch landform of the orchard after the capital establishment, are partially left. Temple moats are mainly transformed to be parts of the land. Due to the changes of waterway elements, the waterway network disappeared with the emergence of the road network. The changes of the characteristics of waterway
1. Waterway to land: some waterways had been transformed into boundary land, indicating the property area or become part of the property (Figure 17).
2. Waterway to road: some temple moats and ditches along the road had been converted to be roads, alleys, and pathways (Figure 16).
3. Waterway to land and road: some temple moats had been changed to be both land and road. Presumably, some parts of the waterway are outside the development area.
4. The changes of correlation between waterway and banks: the land-waterwayland relation that usually occurred in 1907 had changed to three different patterns: land-waterway-land, roadwaterway-road, and land-waterway-road.
Figure 10 Map of Bangkok 1907 Figure 11 Map of Bangkok 2007
Figure 13 Waterway map in Bangkok 1907
Figure 12 Waterway and road in Bangkok sources: Terdsak Tachakitkachon, 2010
Figure 14 The changed waterways by projecting 1907 and 2007 maps Figure 15 The waterways that still exist from 1907 to 2007 maps
Figure 16 The waterways in 1907 transformed to roads shown in 2007 map Figure 17 The waterways in 1907 transformed to lands shown in 2007 map sources: Terdsak Tachakitkachon, 2010
