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Nyaen Weir is one of the weirs in Sukoharjo Regency. This weir has an irrigation area called the Nyaen irrigation area. The Nyaen irrigation area experiences water shortages in the third planting period. Therefore, further analysis is needed to overcome the water shortage appropriately. This study aims to determine the water balance in the Nyaen Irrigation Area. The method used is direct observation along with a quantitative descriptive method. The analysis stage begins with a site survey to discover the problems in the irrigation network and then collect secondary data at the research location. The water balance analysis step is to compare the availability of water with irrigation water needs. According to the water balance analysis in the Nyaen Irrigation Area, it is not balanced because the right intake is 25% sufficient, and the left intake is 75% acceptable. [ABSTRACT FROM AUTHOR]

The growth of motor vehicles in Surakarta from year to year always increases while road capacity does not develop. Therefore, there are often traffic jams everywhere. The discipline of every road user also plays an important role in overcoming congestion on the highway. Stages carried out from problem formulation, research objectives, and literature review, Then preliminary surveys, geometric surveys, vehicle volume surveys, and vehicle speed surveysMonday saturation degrees (DS) decreased after changing the cycle time. This means that the traffic volume at the Mlipahan intersection has decreased due to the resetting of traffic lights on Monday Road capacity: north 1,647 smp / hour, south 1,610 smp / hour, west 786 smp / hour, east 1,348 smp / hour. Saturation Degrees: North 1.15, South 1.12, West 1.15, and East 1.13. Queue Length: North 203 m, South 195 m, West 93 m, and East 145 m. obtained a value of 210 sec/smp. Sunday obtained Road capacity: North 1,763 smp / hour, South 1,549 smp / hour, West 818 smp / hour, and East 1,050 smp / hour. Saturation Degree: North 0.54, South 0.51, West 0.95, and East 0.91. Queue Length: North 92 m, South 89 m, West 87 m, and East 104 m. And the delay was obtained at 36 sec/smp. With PTV-VISSIM software, the queue length is obtained: North 97 m, South 129 m, West 198 m, and East 83 m. The delay was obtained at 72 sec/skr. And Service Level Intersection F or poor. [ABSTRACT FROM AUTHOR]

Building budget design (RAB) is a way to calculate the costs that will be required from a building and with this cost the building can be realized as planned. In Indonesia, there are methods for planning the unit cost price of project budgets, namely BOW (Burgelijke Openbare Werken) and SNI (Regulation of The Ministry of Public Works and Housing Republic Indonesia Number 1 of 2022 concerning Guidelines for Preparing Estimated Costs of Construction Work in the Field of Public Works and Public Housing) where the SNI method is an adjustment and renewal of the BOW analysis which is an analysis of the legacy of the Dutch Government which contains a labor-intensive and conventional work system. However, the reality in the field is that the BOW method is still widely used for building construction work because the coefficient used is greater than using the SNI method so that it is possible to get a greater profit. This study aims to find out the RAB of the SNI and BOW methods and then find out the difference to be an alternative reference in planning construction costs with the SNI and BOW methods and add insight. In the calculation of the budget plan for concrete work costs for the construction of the UPN Veteran Yogyakarta Integrated Research Laboratory Building using 2 methods, the SNI method was obtained at Rp 9,659,059,280.45 while using the BOW method at Rp 14,474,237,708.85. The difference between the SNI and BOW method budget plans is Rp 4,815,178,428.39. [ABSTRACT FROM AUTHOR]

An analysis of the calculation of the Actual Needs for Operation and Maintenance (AKNOP) of an irrigation area is urgently needed to determine the amount of the budget that must be spent by the relevant agencies in terms of operating and maintaining the irrigation area. In general, three parameters are observed, namely the cost of managing the implementation of operations and maintenance, the cost of operating surface irrigation, and the cost of maintaining surface irrigation networks. The purpose of this study was to analyze the magnitude of the Real Operation and Maintenance Performance Figures (AKNOP) in the Jejeruk Irrigation Area. The research method used is to analyze the cost of the three parameters mentioned above. The results showed that the cost of AKNOP in the Jejeruk Irrigation Area was IDR 854,227,960.00 (Eight Hundred Fifty-Four Million Two Hundred Twenty-Seven Thousand Nine Hundred Sixty Rupiah). [ABSTRACT FROM AUTHOR]