Candikusuma Beach in Bali has experienced significant erosion since 2009, threatening public facilities, including a mosque in Candikusuma village. This issue is critical as it affects a coastal fishing community. To mitigate the erosion, a revetment structure using concrete block armor is proposed. This revetment aims to protect the coastal cliff from wave forces and prevent further erosion. The planning process begins with analyzing bathymetric and topographic data to assess land and sea conditions. Tidal analysis determines key water elevations, while wind data is used to calculate maximum and average wind speeds and directions. Wave hindcasting, based on wind data and effective fetch length, provides estimates of wave height and period. Shoreline changes are evaluated by comparing satellite imagery from 2003 and bathymetric surveys from 2012, revealing an average shoreline retreat of 21.70 meters over nine years. The design of the revetment includes a crest elevation of +3.70 meters MSL, constructed on a base at -0.5 meters MSL. The concrete foundation extends to a depth of -1.5 meters MSL. Hindcasting results show maximum wave heights of 1.21 to 1.50 meters from the southwest, with an average wave height of 0.01 to 0.30 meters from the south. The design wave height for a 25-year return period is 1.37 meters with a period of 4.58 seconds, resulting in a wave height of 1.31 meters at a depth of 2 meters. The estimated budget for the 200-meter-long revetment is Rp. 7,778,174,000.

One of the harmful effects of limited green space is high air pollution. As many as 7.78% of residents who live in East Jakarta suffer from ISPA. This problem can be overcome by building green open spaces around settlements. This study aims to analyze and evaluate green open spaces located in the Pulogadung Industrial according to the Minister of Industry's regulation towards the green-blue open space concept. The method used in this research is descriptive quantitative. The results of this study are that the Pulogadung industrial area has land that functions as a green open space of 30.49 hectares, or around 6% of the entire area. Based on the Minister of Industry regulation, a minimum green open space is 10% of the total area. It proves that green open space in the Pulogadung industrial area must meet the assessment criteria. The Pulogadung industrial area has green-blue open space. However, it does not fulfill the green-blue open space concept according to the ATR/BPN ministerial regulations in terms of fulfilling socio-cultural and aesthetic functions because it does not provide recreational facilities, and tree planting does not show a symmetrical pattern. ABSTRAKSalah satu dampak buruk dari RTH yang terbatas adalah polusi udara yang tinggi. Sebanyak 7,78% warga yang bertempat tinggal di Jakarta Timur menderita penyakit ISPA. Masalah tersebut dapat diatasi dengan cara membangun ruang terbuka hijau di sekitar permukiman. Tujuan penelitian ini adalah menganalisa dan mengevaluasi ruang terbuka hijau yang berlokasi di Kawasan Industri Pulogadung berdasarkan peraturan menteri perindustrian menuju konsep green-blue open space. Metode yang digunakan dalam penelitian ini adalah deskriptif kuantitatif. Hasil pembahasannya adalah Kawasan industri pulogadung memiliki lahan yang difungsikan sebagai ruang terbuka hijau sebesar 30,49 Ha atau sekitar 6% dari total luas areal. Berdasarkan peraturan menteri perindustrian, minimal luas RTH yaitu 10% dari keseluruhan luas kawasan. Hal ini menunjukkan bahwa RTH yang berlokasi di kawasan industri pulogadung belum memenuhi kriteria penilaian. Kawasan industri pulogadung memiliki ruang terbuka hijau-biru namun belum memenuhi konsep green-blue open space sesuai peraturan menteri ATR/BPN dalam hal pemenuhan fungsi sosial budaya dan fungsi estetika karena tidak menyediakan fasilitas rekreasi dan penanaman pohon tidak menunjukkan pola simetris.