The Saba watershed is the main water source for irrigation areas downstream of the Saba river. The Titab Reservoir was built to be able to meet the continuity of irrigation water supply, especially during the dry season. This study aims to analyze the fulfillment of irrigation water requirements provided by the Titab reservoir. The study began by collecting data first, in the form of primary and secondary data. Primary data is used to see the existing conditions. Secondary data is used for irrigation requirements analysis and simulation. The secondary data used for manual calculations are 15 daily rainfall data, 15 daily measured discharge, and climate data for 10 years from 2006-2016. The output of these data is the need for irrigation water, the potential evaporation, and the discharge reliability used for the simulation. The simulation was carried out using the RIBASIM 7.01.24 program by entering the calculated data and the existing reservoir data. The simulation results show that the irrigation water needs supplied in each irrigation area are not sufficient according to the plan and the reservoir reliability value is low, namely 57.35%.

Earthquake disasters are some of the most frequent disasters in the world. One of the impacts of earthquakes is liquefaction. Indonesia is earthquake-prone and has been negatively impacted by liquefaction. Recently liquefaction resulting from an earthquake in Palu, Central Sulawesi caused losses in terms of material and lives motivating a more detailed study of this risk to reduce it in the future. In this study, an analysis of the liquefaction potential of sandy soil was carried out by varying the effective confining pressure to produce a graph relating fine contents (FC) to cyclic resistance ratio (CRR).The value of the cyclic resistance ratio is needed to determine the safety factor for potential liquefaction.

The purpose of this research is to find effect of Liquidity, Business Risk and SalesGrowth on Capital Structure in Agricultural Sector Companies Listed on the Indonesia Stock Exchange (BEI) 2015-2019 period. The sampling technique using purposive sampling. And the data of the research is secondary data consist of 17 companies. The analysis of the study using the SPSS 25 with multiple liniear regression analysis techniques. The result of the research shows that: 1) Based on partial research result, it be can amount of liquidity has significant effect on capital structure. 2) The business risk has no significant effect on capital structure. 3) The sales growth has no significant effect on capital structure.

School Safety Zone (ZOSS) One of the efforts given by the government to children's schools is to implement facilities that support the safety of pedestrians. Jalan Pendidikan is a road that is used by many vehicles because several schools can cause problems, one of which is that it can cause school children to be prone to traffic accidents. The purpose of this study was to determine thelevelof roadservice, andthe levelof pedestrians, andtoplan ZOSS on Jalan Pendidikan. The method used in this study is based on the 1997 Indonesian Road Capacity Manual (MKJI) and based on SK.3582/AJ.403/DRJD/2018. The data taken are pedestrian volume, traffic volume, vehiclespeed, and sidebarriers.Based ontheresults that canbeobtained from the level of road service on Jalan Pendidikan using the 1997 MKJI, the capacity (C) =1462 smp/hour, with a degree of saturation (DS) = 0.29 with a service level of B. From the results of the analysis of the volume of pedestrians, It can be seen that pedestrian activity is 32% during school children's entry hours and after school hours, both set and crossing the road. Based on SK.3582/AJ.403/DRJD/2018 plural ZOSS can be applied which consists of road markings and traffic signs.