Incidents in water areas often pose major challenges in terms of handling victims and rescue, especially because environmental conditions are dynamic and difficult to reach. The main problem that needs to be addressed is how to provide an effective and timely response to incidents in waters, so that victims can get help quickly and the number of missing victims can be minimized. In addition, it is also important to ensure that rescued victims receive adequate care and assistance to ensure their safety and health. To achieve this goal, it is necessary to identify and in-depth analysis of methods and strategies that can be used in handling victims of incidents in water areas. This includes developing systems or procedures that are effective in providing assistance, as well as minimizing difficulties in finding missing victims. By better understanding the dynamics of incidents in water areas and the factors that influence victim safety, it is hoped that more effective strategies can be developed in dealing with emergency situations in water areas.

The development of concrete making technology has developed rapidly nowdays, the innovations in terms of material use and workmanship. The implementation of construction work carried out today pays attention to aspects of strength, rigidity, and high durability, as well as sustainability. To support these two things, research can be carried out on making concrete using granite waste. The research method used in this study is an experimental method. The concrete mix design uses variations of granite waste with successive levels of  0%, 15%, 30%, and 45%. The test specimen used for tensile strength testing is cylindrical with a diameter of 15 cm and a height of 30 cm, the test uses 12 specimens where each variation uses 3 specimens. The test is performed when the specimen has reached the age of 28 days. The test specimen tested has met the planned compressive strength requirements at a concrete life of 28 days where the results are greater than 20 MPa. Results of testing the tensile strength of concrete variations of granite waste as a partial substitution of coarse aggregate with variations of granite waste of 0%, 15%, 30%, and 45% respectively; 2.43 MPa; 2.50 MPa; 2.97 MPa; and 2.78 MPa.

This research explores the significance of field trocars in land reclamation within Karbala Governorate's Karta-10 area, caused by waterlogging and salinity. Implementing a detailed reclamation strategy, the study underscores the necessity of a 2 to 2.5 meters burial depth for trocars to prevent water and salt-related issues, aligning with industry standards. The investigation discourages reducing trocar depth to cut costs, as it can result in capillary action and salt build-up or require deeper drainage to manage seepage. Findings indicate that shallow trocars reduce water storage capacity, impacting irrigation and crop hydration, whereas deeper trocars offer better management of drainage flow and spacing efficiency. The study indorses a universal trocar depth of 2 to 2.5 meters, accommodating various crops, thus guiding optimal trocar design and placement for effective land reclamation.

Soil compaction is required to extend firmness, volume weight and diminish soil porousness at the extend area where adaptable asphalt framework will be built. The point of this inquire about is to decide the impact of soil thickness on street development utilizing the sandcone strategy and to decide the comparison of field compaction testing (Sand Cone) with research facility compaction testing (Compaction Testing) on the development of the Takkalasi-Bainange Lawo area of the Soppeng Rule street. This research was carried out within the Respectful Designing research facility of the Muhammadiyah College of Parepare for 4 months from Eminent to December 2023 utilizing the Sandcone test strategy compared to the compaction strategy. The comes about of the investigation of sandcone testing on soil thickness during the development of Jalan ruas takkalasi-bainange lawo within the locale soppeng, appeared that the thickness of dry soil within the gap was an normal of 2.368 gr/cc. and the comes about of the comparison of Field Compaction Testing (Sand Cone) with Research facility Testing (Compaction Testing) appeared that the most elevated degree of thickness was at STA 2 + 600 at 104.94 and the least degree of thickness was at STA 2 + 300 with a esteem of 101.24 and in case found the middle value of the thickness degree esteem is 101.383%. From the comes about gotten, it meets the Binamarga details, specifically a least of 90%, so the compaction on the development of the Takkalasi - Bainange Disoppeng street is classified as exceptionally compelling since it has met the least details
 
 

The high pedestrian activity and traffic flow in the education area on Jalan Raya Abepura-Sentani Jayapura City led to the provision of Pedestrian Bridges (JPO) in two locations, namely in front of the Cenderawasih University Auditorium (JPO-1) and in front of SMP YPPK Santu Paulus (JPO-2). This research was conducted to determine the suitability of the physical geometric standards of the pedestrian bridge and its level of effectiveness, as well as factors that affect pedestrian satisfaction in using the two Pedestrian Bridge (JPO) facilities. Geometric analysis was carried out using the standard of Pedestrian Bridge Planning Procedures for Urban Pedestrians (1995) and Technical Planning of Pedestrian Facilities (2023), calculation of the level of effectiveness using the volume of crossings, and analysis of service satisfaction using the Importance Performance Analysis (IPA) method. The results found that the condition of JPO-2 is better and meets the standards because it uses a slope that can be used by people with disabilities, while the slope on the steps of JPO-1 is too steep (40°) and narrow with a width of 1.4 meters, so the effectiveness level of JPO-2 is higher (67%) than JPO-1 (52%). Factors affecting user satisfaction are aspects of comfort, safety, and security.  The main obstacles in using the pedestrian bridge are dirty conditions, no lighting, the presence of people under the influence of alcohol or extortionists, and damage to the Pedestrian Bridge (JPO) facilities.

In the context of carrying out fisheries activities, the Tanjung Adikarto Fishing Port does not fully meet the requirements as a Coastal Fishing Port (Type C). Complete facilities such as cold storage, shops, ship maintenance and fishing equipment, as well as places for handling and processing fishery products are still not available, while several other facilities also do not meet adequate standards. In this section, the author will describe the actual conditions of the facilities at Tanjung Adikarto Port and their comparison with the standard facilities that a Coastal Port (Type C) should have. This is the first step to evaluate what needs to be improved in order to increase the capacity and feasibility of the port to support more optimal fishing activities. Observations of the existing condition of the port have revealed several problems that need attention. Buildings that are damaged and uninhabitable are one of the main issues that need to be addressed immediately. The aim is not only to ensure port operations run optimally, but also to align port activities with environmental sustainability, so that their contribution to the community's economy can be realized in a sustainable manner.

A slope is an area of ??morphology that has a certain geometry, namely the highest and lowest parts and has the potential for landslides if it is in an unstable condition (Wesley & Pranyoto, 2010 in Khodijah, et al, 2022). A slope can be composed of soil, rock, or both. Slope stability is influenced by slope geometry, physical and mechanical characteristics of the slope-forming material, water (hydrology and hydrogeology), rock weak plane structure (location, direction, frequency, mechanical characteristics), natural stresses in the rock mass, local stress concentrations, vibrations ( natural: earthquakes; and human actions: effects of blasting, effects of heavy equipment passing by), climate, the results of mine workers' actions, and thermic effects (Moshab, 1997 in Arif, 2016).

Utilization of new technologies in asphalt mixture production includes soaking technologies that can enhance mechanical properties of the mixture. This research aims to evaluate pavement vulnerability to water and the environmental quality impact due to waste from used rubber tires as an effort to strengthen pavements by substituting asphalt. The variables studied are variations of used rubber tire waste at 0%, 2%, 3%, and 4% replacing asphalt content in AC-BC mixtures. Testing was conducted using the Marshall method by soaking the mixtures in water for normal duration, 30 minutes, 24 hours, and 72 hours. The test results indicate that higher percentages of used rubber tire waste and longer soaking durations lead to a decrease in AC-BC mixture characteristics. The Marshall value of the AC-BC mixture with 2% used rubber tire waste was found to be superior compared to mixtures with 0%, 3%, and 4%. From the data analysis conducted, it can be concluded that water has a negative influence on the Marshall value reduction of mixtures containing used rubber tire waste, correlating with increased soaking duration.

Rock strength is the ability of a rock to maintain its strength until it breaks when a force is applied. Rock compressive strength is a very important parameter in the world of mining. The compressive strength of the rock determines the mining method that will be used. Several things that influence the compressive strength of rock include porosity, true specific gravity, and water content. With the same volume, if the porosity value is high, the true specific gravity value will be low because of the large number of pores in the rock. This allows the compressive strength value to be low because the rock will crumble more easily when pressure is applied. After testing, the highest compressive strength value was in the Pulaubalang Formation, location 2, with a value of 2.19 MPa. Meanwhile, the lowest compressive strength value was in the Kampungbaru Formation, location 1, with a value of 1.49 MPa. In accordance with the stratigraphic layers in the Kutai Basin, the Pulaubalang Formation is older than the Kampungbaru Formation.
 
 

To determine the mineral content and composition of a rock, a petrographic test is carried out using a thin section method. Petrographic test is known as an efficient test of time and energy with accurate results in obtaining the composition and mineral content of rocks. The Point Load test is an index test that has been widely used to predict the UCS value of a rock indirectly in the field. This is due to the simple test procedure, easy sample preparation and can be done in the field, so that the strength of the rock can be quickly known in the field before testing in the laboratory.