IDENTIFICATION OF THE POTENTIAL DEVELOPMENT OF GREEN STREET AS A FLOOD CONTROL MEASURE ON K.H. SHOLEH ISKANDAR STREET, BOGOR CITY

• Main Author: Luthfiyah Eshandra, Hana
• Format: Final Project
• Language: Indonesia
• Subjects: Perencanaan wilayah
• Online Access: https://digilib.itb.ac.id/gdl/view/81751
• Institution: Institut Teknologi Bandung

The city of Bogor serves as a buffer zone for DKI Jakarta, which has led to an increased demand for infrastructure and residential areas in the region. This growth has resulted in a reduction of permeable areas in Bogor, consequently causing flooding. There are 84 flood points scattered throughout Bogor, with a total flood area reaching 68.5 hectares or 0.59% of the total area of Bogor. Jalan K.H. Sholeh Iskandar, one of the national roads in Bogor, frequently experiences flooding during heavy rains. The flooding is caused by poorly maintained drainage channels that cannot optimally handle rainwater. Furthermore, rapid development around the road and poorly maintained vegetation have also reduced the infiltration areas on Jalan K.H. Sholeh Iskandar. Currently, flood control strategies have evolved from physical infrastructure systems to Nature-based Solutions (NbS). NbS offers sustainable, nature-based solutions to environmental, social, and economic challenges. The implementation of NbS integrated with urban transportation routes is referred to as green streets. Green streets are urban transportation routes that manage stormwater using vegetation. Several green street components that can be applied are bioretention, swales, vegetated filter strips, street trees, planters, permeable pavement, and rainwater harvesting. This study aims to identify the potential for developing green streets on Jalan K.H. Sholeh Iskandar. The analysis involves identifying the flood characteristics on Jalan K.H. Sholeh Iskandar, determining suitable green street components for this road, creating scenarios for implementing green streets, and assessing the effectiveness of green streets in flood control by comparing flood discharge before and after their implementation. The results indicate that there are 5 flood points along Jalan K.H. Sholeh Iskandar, with flood heights ranging from 10 to 50 cm. Flooding occurs frequently, especially during the rainy season, with 5 to 10 flood events per year. The analysis shows that flooding occurs in segments II, IV, V, VI, VII, and VIII. The most suitable green street components for Jalan K.H. Sholeh Iskandar are bioretention, permeable pavement, and street trees. Bioretention is applied to the existing green median, while permeable pavement and street trees are applied to the roadside areas. Implementing these three green street components on Jalan K.H. Sholeh Iskandar incurs initial construction costs of Rp3,552,008,381.11 and annual maintenance costs of Rp905,030,024.45. The implementation of bioretention in thevii median completely absorbs rainwater, achieving zero runoff. The application of permeable pavement and street trees along the roadside reduces runoff by up to 20%. Consequently, the flood discharge on Jalan K.H. Sholeh Iskandar can be completely mitigated by the implementation of green streets. The development of green streets as a flood control measure presents a sustainable solution worth considering for urban road sections. Collaboration between the government, communities, and stakeholders is necessary to facilitate the exchange of ideas and knowledge in implementing green streets. Further studies on the social and economic benefits of green streets can also be conducted to evaluate their impact on community quality of life and measure financial impacts, including cost savings and property value enhancements.