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Salah satu lokasi yang pernah terjadi longsor pada jalur Pacitan – Ponorogo adalah di KM 258 pada bulan desember 2017. Pada lokasi tersebut terdapat 3 segmen lereng yang berdekatan, segmen lereng pertama pernah terjadi longsor dan telah dilakukan penanggulangan berupa struktur perkuatan dinding penahan tanah, begitu pula dengan segmen lereng kedua pernah terjadi longsor namun pada segmen ini belum dilakukan penambahan perkuatan struktur, untuk mencegah kelongsoran pada segmen lereng ketiga dilakukan penyelidikan pada lereng tersebut. Digunakan metode analisa kinematika, pembobotan masa batuan RMR lalu dikorelasikan dengan tabel refrensi kemiringan sudut SMR dan simulasi sudut yang direfernsikan menggunakan bantuan program Geostructural. Pengerjaan analisa kinematika dibantu dengan menggunakan program DIPS untuk mengetahui jenis kelongsoran lereng dan didapat jenis keruntuhan adalah longsoran rotasi. Pembobotan masa batuan RMR pada lereng yang diteliti didapat nilai 39 (kelas IV) yang mana jenis batuan adalah batuan buruk, dan korelasi dengan SMR pada batuan kelas IV RMR adalah disarankan sudut lereng sebesar 45°. Setelah disimulasikan stabilitas lereng dengan menggunakan bantuan program Geostructual dengan variasi sudut 80°, 75°, 70°, 65°, 60°, 55°, 50° hingga 45°, didapatkan sudut efektif yaitu 60° dengan nilai FS 1,55.

In every road maintenance project implementation there are always unpredictable risks affecting the quality of the project performance. This study aims to obtain the most dominant risks affecting the quality performance of road maintenance projects in Malang Regency using Analysis Hierarchy Process (AHP) method and Multiple Linear Regression. The AHP method was chosen to observe the highest level of the risk, while the Multiple Linear Regression method was selected to find risk events which have significant effect upon the quality degradation of the project. The results showed that the risk of material specification insufficiency reaches the highest risk level with risk factor value of 0.584, while the risking events caused by materials and human resources insufficiency is the most significant influences affecting the quality degradation of the project performance.

In Indonesia generally use conventional flexible pavement, where the ability to pass water is not good. One prevention effort is using porous flexible pavement. To determine the effect of stress, strain, and deformation on porous and conventional pavement, a semi-field pavement study was conducted and focused on improving track performance. Semi-field scale is an analytical method that using a certain scale that can represent the actual conditions that occur in the field, both on the load, material, and thickness. From the measurement results, the value of stress and strain increased along with the increasing number of tracks. Meanwhile, the deformation on the surface of the asphalt due to the passing wheel load increases as the number of tracks increases.

Performance of a building construction will decrease with increase life service of the structure. To maintain the performance building in order to remain functioning properly it is necessary to repair the damaged building components. The purpose of this study is to get an assessment the physical condition of the building and analyze damage level of school structure in Blitar City, and get the order to maintenance of elementary school structures in Blitar City. Weight of structure criteria assessed by the building expert and analyzed with Analytical Hierarchy Process (AHP) method, then the result of the weight is multiplied by the physical condition index obtained from the observation. Assessment of physical condition index of elementary school structure in Blitar city is 69.34%, it can be interpreted that the structure is in deterioration or damage but does not affect the overall structure of the building.

Acceleration of national development increases the number of construction projects in Indonesia, including road projects. The contractor as the service provider in the implementation of the construction work shall have a detailed implementation schedule and project cost budget plan so that the construction work shall not be subject to delays and cost overrun. The main thing that can cause cost overrun is the error in cost estimation. In this study discusses the modeling of increasing the accuracy of cost estimation as well as the development of factors that can improve the accuracy of cost estimation. Validation of research variables was done to experts using Analytical Hierarchy Process (AHP) method and modeling using Structural Equation ModelingPartial Least Square (SEM-PLS) method to project contractor of Public Works Department of Central Kalimantan Province and National Road Implementation Center XI Unit Work of Central Kalimantan with contract value of project worth 20 Billion to 50 Billion Rupiah Year 2016. The result of variable validation shows the competence variable of estimator, survey, availability of information, calculation of cost estimation and internal company is variable which influence estimation The obtained modeling equation is AEB = 0,129 KE + 0.466 S + 0,191 KI + 0,153 PEB + 0,069 IP + 0,181 ζ. The development of cost estimation is done by improving each influential indicator in each variable and applying development strategies to increase the estimated cost estimation based on SWOT analysis. Keywords : Analytical Hierarchy Process (AHP), cost estimation, road, Structural Equation Modeling-Partial Least Square (SEM-PLS), SWOT analysis.

Pertanian Perkotaan (Urban Farming) memanfaatkan intensifikasi lahan, guna memenuhi kebutuhan sayuran dan buah segar sehari-hari bagi masyarakat pemukiman/perumahan di perkotaan. Teknologi Portable inflated Greenhouse sebagai fasilitas pendukung produksi pertanian perkotaan, dapat dibangun serta dipindahkan ke lokasi pemukiman/perumahan tertentu secara mudah, aman, cepat dan ringan (0,55mm PVC Terpaulin) sehingga produk pertanian perkotaan semakin dekat dengan konsumen pemukiman di perkotaan, dampaknya harga semakin murah namun berkualitas. Tujuan jangka panjang adalah mengembangkan protitipe Portable inflated Greenhouse sebagai fasilitas Urban Farming yang memenuhi aspek kekuatan, kecepatan, efektifitas, kenyamanan serta mendorong hasil panen tanaman buah/sayuran hidroponik yang higienis, murah dan menguntungkan, sehingga produk Portable inflated Greenhouse otomatis mendukung peningkatan produksi pangan Nasional. Target khusus adalah tersedianya protitipe Portable inflated Greenhouse sebagai fasilitas Urban Farming guna peningkatan produktifitas tanaman buah/sayuran hidroponik higienis, murah dan menguntungkan, sehingga berprospek tinggi untuk diproduksi massal guna memenuhi kebutuhan pangan Nasional. Metode Penelitian menggunakan Metode Eksperimen dan Action Research, diawali dengan pengembangan rancang bangun, pembuatan, pengujian dan perbaikan prototipe Portable inflated Greenhouse meliputi (1) uji kekuatan dan ketahanan bahan Portable inflated Greenhouse terhadap cuaca, (2) uji bahan Portable inflated Greenhouse yang paling efektif sebagai komponen struktur, (3) uji kecepatan pembuatan, pengangkutan, perakitan, pemasangan, pembongkaran Portable inflated Greenhouse, (4) uji temperatur, kelembaban dan tekanan udara didalam Portable inflated Greenhouse, (5) uji tanaman buah/sayuran hidroponik yang cocok dikembangkan dalam bangunan portable inflated greenhouse sehingga diperoleh hasil panen yang higienis, murah dan menguntungkan. Tahun pertama melakukan pengembangan rancang bangun prototipe Portable inflated Greenhouse, dilanjutkan pembuatan prototipe dan diakhiri dengan uji coba prototipe serta uji coba lapangan di di Lab Universitas Narotama, dipublikasikan pada Seminar/Proceeding Internasional dan Jurnal Internasional terindex, diajukan registrasi PATEN KemenkumHAM. Hasil penelitian berupa Teknologi Tepat Guna dipublikasikan pada Seminar/Proceeding Internasional dan Jurnal Internasional terindex, diproses PATEN KemenkumHAM, serta layak diproduksi massal guna mendukung percepatan produksi pangan Nasional yang higienis, murah dan menguntungkan.