Settlement Areas in Urban Fringe which Far away from Water Sources Areas as a Node of Movement

2.2.5. Settlement Areas in Urban Fringe which Far away from Water Sources

CCROM IPB 2010 identified a number of Semarang City s areas experiencing drought because they are far away from water sources. The identification results can be seen from the following map. Figure 2.16: Drought-Prone Areas in Semarang City 27

2.2.6. Areas as a Node of Movement

Transportation facilities which are vital to Semarang City such as Ahmad Yani Airport, Tanjung Mas Harbor, Tawang Railway Station, and Terboyo Bus Terminal are located in potential-flooded areas. Ahmad Yani Airport has experienced paralyzed in a day because of heavy rains that triggered flooding on the runway. Tawang Railways Station also experienced the same story. This strategic infrastructure, particularly Tawang Railway Station, Tanjung Emas Harbor, and Terboyo Bus Terminal often suffered from flooding and high tide. These facilities are the pulse of the movement of people, goods, and commodities that are vital to the urban economy. The following figure shows where one of node movements areas in Semarang City threatened due to climate change . Figure 2.17: A Railway Station which Located on Inundated and Flood Prone Areas Source: DKP, 2008 28 Figure 2.18: Nodes of Movement which are Prone to Increasing of SLR 29 Sea-level rise has influence to the increasing of Wave Set-up and Wave Run-up contained in the vertical sea wall port building on the eastern part of Semarang s west flood canal. Based on the calculation of sea level rise average at of 8 mm year with 20 years simulation, 16 cm sea level rise would increase the Wave Set-up and Wave Run-up at 4.1 cm or 10.59 and at 7.7 cm or 1.51 respectively. In contrast, with the same assumption, there would be a decreasing in security factors FS equal to 0.37 cm or 18.45. If it is calculated over the next 100 years when there is 80 cm sea level rise, Wave Set-up and Wave Run-up will rise by 10 cm or 51.73 and at 1.6 m or 31.64 respectively, while safety factors will at 1.16 m or 57.67. This means that the higher its SLR the greater both wave set-up and run-up, but the lower its safety factor DKP, 2008.

2.2.7. Functional Areas of Central Business District