Indonesia is an earthquake-prone country. In many earthquakes, the housing sector suffers the most damage. Repairing and rebuilding houses is often the most expensive part of post-disaster recovery, placing a burden on the government. Standards and guidelines for earthquake-resilient houses exist, yet houses continue to be damaged in earthquake events. Although Indonesia has numerous engineers, both experienced and newly qualified, only a few are interested in pursuing and identifying affordable solutions to the housing problems caused by earthquakes that are sustainable and resilient. Moreover, people are unaware of and unable to implement the proposed and promoted solutions. With many people living in earthquake-prone areas with little access to affordable and appropriate technology, the challenge facing Indonesia today is to produce more engineers who have the level of sensitivity, empathy, and passion required to address this great humanitarian need. The promotion of humanitarian engineering to provide appropriate solutions must start early on in higher engineering education.

Everywhere in the world, especially as the fourth industrial revolution begins, technological advancements are being discussed. This technological advancement also affects the building industry, one example being the use of Building Information Modeling (BIM) technology. All technologies, particularly BIM, will advance and redevelop throughout this Covid-19 epidemic. BIM has benefits and barriers to implementation that increase with its development and sophistication, particularly for contractors. Therefore, it's important to research the advantages of using BIM as well as the barriers for contractors. The purpose of this study is to analyze the benefits and inhibiting factors in the implementation of BIM in building construction for contractor. This research was conducted by using literature from previous studies to find out what statements are the benefits and barrier factors in the implementation of BIM 4D for contractors with top and middle qualifications. Then the statement was compiled into a questionnaire and distributed to respondents via online platform. In addition to obtaining the mean value for each research variable, the questionnaire survey responses were processed utilizing validity and reliability tests. The findings of this study show that the benefits of BIM implementation for top contractors include better and more appealing building design or modeling, more accurate documentation, as well as better and more attractive building design or modeling for middle contractors. The lack of training and education in BIM itself is the main obstacle to its implementation for these top contractors, while the cost of licensing BIM software or apps is fairly high for midrange contractors.

In the implementation of housing development, the problem of late payment delays is a common issue encountered in commercial and subsidized housing projects during construction. These delays impact the timely completion and lead to disputes among the involved parties, which include owners, contractors, and subcontractors. This study aims to analyze the primary factors contributing to late payment in construction projects, specifically in commercial and subsidized housing. The analysis is conducted from the perspective of the owner, contractors, and subcontractors. The study involves six owner respondents, six contractor respondents, and four subcontractor respondents. The survey results were analyzed using the Analytical Hierarchy Process (AHP) to assess the significance of various factors influencing payment delays in both housing schemes. The analysis results indicate that financial issues with the owner's company are crucial factors from the owner's perspective in causing payment delays in both commercial and subsidized housing projects. A major challenge faced by contractors is the lack of capital availability, which can lead to delays that affect all involved parties. Meanwhile, discrepancies between job specifications not following the contract from the subcontractor's viewpoint highlight the importance of clear communication and rigorousness. All parties involved in housing projects need to improve financial management, enhance capital procurement, and tighten the supervision of contract implementation. By identifying key factors, adopting best practices can help mitigate the risk of payment delays and improve efficiency in future housing project implementations, whether commercial or subsidized.

Perkuatan struktur kolom beton bertulang pada gedung pabrik memiliki pengaruh pada kegiatan operasional, secara khusus pendapatan dari pabrik. Pada pemilihan metode perkuatan pada pabrik, estimasi kerugian pendapatan perlu dipertimbangkan selain kriteria umum lainnya. Studi ini bertujuan mendapatkan perbandingan metode perkuatan kolom beton bertulang antara metode steel jacketing (SJ) dan penggunaan carbon fiber reinforced polymers (CFRP) pada gedung pabrik berdasarkan aspek biaya, durasi pekerjaan, dan dampak kerugian pendapatan operasional pabrik. Studi kasus dilakukan pada fasilitas gedung pabrik di Provinsi Lampung, dengan 2 kolom yang akan diperkuat hasil analisis tahapan studi sebelumnya. Analisis biaya dan durasi dilakukan mengacu Analisis Harga Satuan Pekerjaan (AHSP) PerMen PUPR No.28/PRT/M/2016 dan harga satuan daerah pada wilayah Provinsi Lampung. Estimasi kerugian operasional pendapatan (YLOSi) pabrik dikalkulasi melalui pendekatan model HAZUS. Hasil penelitian menunjukkan pada aspek biaya, metode CFRP memiliki biaya yang lebih besar dengan selisih 37,02% dibandingkan metode SJ. Pada aspek durasi pelaksanaan, metode CFRP memiliki durasi yang lebih singkat dengan selisih 2 hari (40,00%) dibandingkan metode SJ. Pada aspek YLOSi pabrik menunjukkan metode CFRP memiliki estimasi kerugian lebih kecil dengan selisih 40,00% dibandingkan metode SJ. Namun pada total biaya tanggungan (biaya pelaksanaan dan estimasi kerugian), metode CFRP memiliki nilai lebih besar 24,28% dibandingkan metode SJ.

Road infrastructure as a means of transportation has an important role in the economy of a region. The ability of road infrastructure to serve the community is not only needed under normal conditions but is also needed when a disaster occurs as part of disaster resilience. One of the approaches that can be used in assessing disaster preparedness is mapping disaster risk on the road sections under review. In this research, a case study of disaster risk mapping was carried out on the Pasauran-Sp. Labuan - Cibaliung and Citereup-Tanjung Lesung, Banten Province which is divided into 11 road sections. Disaster risk mapping on roads in Padegelang is very much needed with disaster-prone locations making it very prone to disasters, especially floods, tsunamis, earthquakes, and landslides. The aim of this study is to map disaster risk based on the value of the multi-disaster risk index (floods, tsunamis, earthquakes, and landslides) on the Pasauran-Sp. Labuan-Cibaliung and Citereup-Tanjung Lesung. Disaster risk mapping is carried out using the procedures of Director General of Highways Circular Letter no. 12/SE/Db/2014 concerning Guidelines for risk analysis of natural disasters affecting roads and bridges. With this disaster risk map, it is hoped that it will be useful for stakeholders to make decisions related to disaster mitigation on these roads. The results of the multi-disaster disaster risk index values obtained from this study in sections 9, 10 and 11 have a low risk level, in sections 1,3,5 and 6 have a medium risk level, and in sections 2,4,7 and 8 have a high level of risk