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Simpang empat tak bersinyal memiliki peran penting dalam mengatur pergerakan lalu lintas, namun sering menimbulkan permasalahan ketika volume kendaraan tinggi. Penelitian ini bertujuan untuk menganalisis kinerja simpang empat tak bersinyal di Simpang Jalan DR. Sutomo, Jalan Lintas Utama Sumatera, dan Jalan Letkol Rusman Effendy Bustan, Kota Baturaja, dengan menggunakan metode Pedoman Kapasitas Jalan Indonesia (PKJI) 2023. Pengumpulan data dilakukan melalui survei selama tiga hari dengan pengamatan pada jam puncak pagi pukul 07.00-09.00 Wib, siang pukul 12.00-14.00 Wib, dan sore pukul 16.00-18.00 Wib. Hasil penelitian menunjukkan bahwa volume lalu lintas tertinggi terjadi pada hari Senin pukul 08.30–08.45 WIB dengan Qtot = 2.932 SMP/jam dan kapasitas simpang C = 3.446 SMP/jam. Perhitungan kinerja simpang menghasilkan derajat kejenuhan (DJ) = 0,85, tundaan rata-rata = 14,57 detik/SMP, dan peluang antrean berkisar 29%–57%. Berdasarkan kriteria PKJI 2023, simpang ini termasuk dalam Tingkat Pelayanan E Situasi ini menunjukkan bahwa kinerja simpang berada pada kondisi kritis dan tidak stabil.  

Pelanggaran jam operasional kendaraan bertonase besar di kawasan Simpang Patal Kota Palembang masih sering terjadi dan menyebabkan kemacetan, risiko kecelakaan, serta kerusakan jalan. Penelitian ini bertujuan menganalisis alternatif kebijakan yang paling tepat untuk penertiban mobil barang di kawasan tersebut. Penelitian menggunakan metode deskriptif kualitatif melalui observasi, wawancara, dokumentasi, dan studi literatur. Analisis data dilakukan menggunakan model Miles dan Huberman, sedangkan evaluasi kebijakan menggunakan pendekatan Multi-Criteria Decision Analysis (MCDA) berdasarkan kriteria William N. Dunn. Terdapat tiga alternatif kebijakan yang dianalisis, yaitu mempertahankan kebijakan yang berlaku (status quo), revisi Perwali Nomor 26 Tahun 2019 dan implementasi Electronic Traffic Law Enforcement (ETLE), serta penyediaan kantong parkir (holding area) di kawasan Pelabuhan Sungai Lais. Hasil penelitian menunjukkan bahwa alternatif penyediaan kantong parkir (holding area) memperoleh skor tertinggi sebesar 91 dengan rata-rata 4,55 sehingga dinilai paling optimal dalam mengurangi pelanggaran, kemacetan, dan risiko kecelakaan serta mendukung transportasi perkotaan yang lebih tertib dan berkelanjutan.

This study examines how madrasah students perceive the meaningfulness of Islamic Religious Education (Pendidikan Agama Islam/PAI) integrated with local wisdom as a means of instilling Islamic values. The Malay community in Pemayung District, Batanghari Regency, Jambi, inherits a rich array of traditions deeply rooted in Islamic values, including zikir ratib, hadrah, berzanji, and patitih. However, the extent to which such local wisdom integration in formal PAI instruction is perceived as meaningful by students has never been empirically measured. This descriptive-comparative survey study involved 82 students of MTs. Irsyadul Ibad, selected through a total sampling technique. The instrument employed was the SPIN-KL Scale (40 items, α = 0.884), measuring eight perceptual dimensions on a 5-point Likert scale. Analysis results revealed an overall mean perception score of 4.12 (SD = 0.42; positive category; 82.7% positive responses). The dimension of PAI content relevance to local wisdom obtained the highest score (M = 4.24; very positive), while the dimension of Islamic identity consolidation through local culture recorded the lowest score, though still remaining positive (M = 3.98). Independent samples t-tests indicated a significant difference based on students' active participation in religious study circles (pengajian) (t(80) = 4.74, p < 0.001, d = 1.07), whereas gender and grade level yielded no significant differences. These findings underscore the importance of collaboration between madrasah institutions and religious-cultural communities in strengthening the internalization of Islamic values.

This research is motivated by the increasing urban activities in Mempawah Hilir District as a Regional Activity Center, which has led to high traffic movement at the intersection of Jl. Raden Kusno – Jl. A. Djaelani – Jl. Raden Sujarwo. The diversity of land use and the meeting of arterial and collector roads create potential traffic conflicts and accident risks. The installation of traffic lights is implemented as a traffic control measure; however, its effectiveness in improving safety and comfort needs further analysis. This study aims to assess traffic safety and comfort conditions after the implementation of traffic lights at the intersection. A quantitative approach was used with primary and secondary data. Primary data were obtained through questionnaires on road users’ perceptions and field observations, while secondary data included traffic accident records from Mempawah Police and spatial development data from Google Earth Pro, Google Maps, Copernicus, and Google Colab. The analysis employed descriptive-comparative, spatial descriptive, and scoring methods. The results show that traffic lights implemented since August 2023 have reduced traffic accidents and improved safety conditions, although not yet optimal compared to the lowest accident rate in 2021. Increased land use activity and traffic volume influence this condition. User perceptions indicate improved comfort internally, but external factors such as road conditions and side obstacles still reduce comfort and safety.

Indonesia is in an earthquake-prone region, therefore, designing building constructions that can withstand seismic loads is crucial in civil engineering. Reinforced concrete shear walls are one of the vertical structural fundamentals that are effectively used in multi-story buildings to withstand lateral forces due to earthquake and wind loads. Structures that use shear walls can increase stiffness and reduce horizontal deviations (deflections) of buildings, which contribute to the stability and safety of structures based on the SNI 1726:2019 standard. This study aims to analyze the effect of shear wall configurations on deviation and torsion requirements in multi-story building planning. The study object is a 6-story reinforced concrete building model in a specific earthquake zone. The design and modeling were performed using structural analysis software, taking into account columns, beams, slabs, and shear walls. The analysis results show that optimal placement of shear walls at the building edges significantly reduces horizontal drift, torsion, and shear forces, and improves the structural performance level compared to structures without shear walls or those with less effective placement. Structures with shear walls have optimal stiffness in absorbing lateral forces, making them more resistant to damage from the planned earthquake.

Population growth and socio-economic activities increase traffic volume, affecting the performance of the Raden Kusno – A. Djaelani – Sujarwo signalized intersection. This study aims to analyze the intersection’s current performance, estimate its condition over the next five years, and formulate alternative treatment strategies. The research data include geometric characteristics, signal timing, vehicle speed, and traffic volume obtained from CCTV recording over a three-day observation period from moning to evening, as well as population and vehicle data for projection. The intersection performance was analyzed using the PKJI 2023 approach and VISSIM simulation. Under current conditions, the intersection operates at LOS E with delays of 45,12 seconds (PKJI 2023) dan 60,56 seconds (VISSIM). In the five-year projection, delays increase to 48,97 seconds with LOS E (PKJI 2023) and 131,29 seconds with LOS F (VISSIM). Modifying the signal from four to three phases with a 70-second cycle improves the current condition to LOS C, with delays of 24,50 seconds (PKJI 2023) and 29,43 seconds (VISSIM). For the five-year projection, adding a continuous left-turn lane results in LOS D with 27,04 seconds (PKJI 2023) and LOS C with 32,01 seconds (VISSIM).

Entamoeba histolytica is an intestinal protozoan that can cause diarrhea through fecal–oral transmission due to the consumption of food or water contaminated with parasitic cysts. Based on data from the Badan Pusat Statistik in 2017–2019, Simpang Keramat District, particularly Paya Leupah Village, still had limited access to clean water and low ownership of permanent sanitary latrines, which may increase the risk of environmental contamination. This study aimed to analyze the characteristics of dug wells and the risk factors associated with Entamoeba histolytica contamination in community well water. An observational analytic study with a cross-sectional design was conducted on 50 dug wells selected using purposive sampling. Data were obtained through field observations and laboratory examinations of well water samples. The results showed that most wells had distances to septic tanks that did not meet health standards (58%) and inadequate well floor conditions (82%), while the majority of wells had depths that fulfilled the recommended standard (76%). All well water samples tested negative for Entamoeba histolytica cysts; therefore, the association between risk factors and contamination could not be determined.

Pedestrian is one of the most important public spaces for urban areas. On the border of Muara Enim city has a pedestrian that attracts attention, namely the pedestrian welcome intersection kepur. Simpang Kepur pedestrian has a border gate that is the center of attention and the first impression when entering the city of Muara Enim so that it has the opportunity as a face or symbol of the identity of the city of Muara Enim. Visually, the existence of pedestrians and gates at the Kepur intersection looks quite attractive but functionally it is not in accordance with the characteristics of pedestrian activities on the pedestrian so that research is needed to rearrange the previous design so that the function of the pedestrian becomes even better. The method used is qualitative through observation based on facts and activities in the field. Analysis based on the impression of place and activity on the pedestrian. The results obtained that there is a need to change the appearance of the color processing so that the pedestrian becomes more alive, need to keep the pedestrian so that there is no loss or damage, the need for guardrails or vegetation / view barrier plants in the area behind or beside the pedestrian, rearrangement of plants that can absorb dust and can absorb noise, and arrangement of street furniture, namely visual recommendations for a wider bus stop design, replace permanent seating, replace permanent trash.

This study aims to analyze the effectiveness, challenges, and solutions of the application of the Indonesian teaching module of biographical text material in grade X students of SMK Negeri Simpang Empat Tanah Bumbu in the Independent Curriculum. Teaching modules, which are essential for systematic planning, are often difficult for teachers to compile. This module focuses on the development of listening and speaking skills, as well as the cultivation of the Pancasila Student Profile (independent, critical, creative), supported by students' initial knowledge, various media, and a Creative-Productive learning model. With qualitative methods, the study found that although the teaching modules succeeded in creating planned learning (through activities such as goal negotiations, video exploration, and group discussions), there were major challenges in integrating all elements effectively, optimizing students' initial knowledge, developing independence/critical thinking, and overcoming media constraints and classroom dynamics. Therefore, this study emphasizes the need for teacher innovation in compiling and implementing modules so that learning becomes even, interesting, and in accordance with the spirit of the Independent Curriculum.

Early childhood (0–6 years) is a critical period in human development, often referred to as the golden age, during which all aspects of development, including language and vocabulary, grow rapidly. However, based on preliminary observations at TK Merpati, Simpang Sungai Rengas District, the vocabulary skills of children aged 4–5 years were still relatively low. This study aimed to examine the effectiveness of papercraft puppet media in improving the vocabulary skills of children aged 4–5 years at TK Merpati, Simpang Sungai Rengas District. The research employed a classroom action research design conducted in three cycles. The subjects consisted of 17 children aged 4–5 years. Data were collected through observation sheets, and data analysis was carried out by comparing the percentage of children’s vocabulary achievement before and after the implementation of the papercraft puppet media in each cycle. The results indicated a significant improvement in children’s vocabulary skills. In the pre-action stage, children’s achievement was categorized as Not Yet Developed (NYD) with a percentage of 30%. In Cycle I, the percentage increased to 50% (Beginning to Develop). In Cycle II, it further improved to 76% (Developed as Expected). In Cycle III, the results reached 95% (Very Well Developed). These findings demonstrate that papercraft puppet media is effective in enhancing vocabulary development in early childhood.

This study focuses on the analysis of traffic density in Jember City, particularly at the Wirolegi Intersection, which is known to have a high density level. This condition often triggers congestion that hinders public mobility, so that appropriate and data-based handling efforts are needed. The purpose of this study is to identify and analyze the level of density at critical congestion points through a statistical approach using the One Way ANOVA method. The research method used is quantitative descriptive with a descriptive observational approach. Primary data was collected directly through a field survey in 2025 at the Wirolegi Intersection as one of 3 intersections in Jember City. The data obtained were then processed using normality tests, homogeneity tests, and One Way ANOVA with the help of SPSS software. The results of the analysis show that the traffic flow density on the three routes studied, namely Jalan Gunung Haryono, Jalan Brigjen Katamso, Jalan Yos Sudarso, does not show a significant difference. The significance value of the ANOVA test is greater than 0.05 which indicates the similarity of density levels between routes. Further testing (post hoc testing) also strengthens this finding. The conclusion of this study shows that handling congestion at the Wirolegi Intersection needs to be done comprehensively through traffic control and evaluation of the transportation system to improve smoothness and mobility in Jember City.

Increasing traffic activity at unsignalized intersections often results in congestion and delays. The intersection of Jl. Imam Bonjol and Jl. Daya Nasional experiences these conditions, making performance evaluation necessary. This research tends to scrutinize the intersection performance under existing conditions and five-year projected conditions and to identify appropriate improvement measures. The analysis was carried out using the 2023 Indonesian Road Capacity Guidelines (PKJI 2023) and PTV VISSIM microsimulation software. Data on intersection geometry, vehicle speed, and traffic volume were collected through CCTV observations on weekdays and weekends. The results show that under existing conditions, the degree of saturation reached 1.170 with an average delay of 33.75 seconds (LOS D). In the five-year projection, the degree of saturation increased to 1.239 with an average delay of 53.69 seconds (LOS E). These findings indicate a decline in intersection performance, highlighting the need for alternative traffic management measures to improve operational performance and service levels.    

This community service activity was carried out by the Real Work Lecture (KKN) team of the State Islamic University of North Sumatra (UINSU) with the aim of developing ecoprint products as an environmentally friendly innovation as well as a means of empowering creative MSMEs in the environment of SD 040479 Perteguhen, Simpang Empat District, Karo Regency. This program was motivated by the low level of public awareness of the importance of sustainable natural resource management and the limited skills in utilizing the potential of the environment to create products with economic value. This activity is also expected to provide an educational experience for elementary school students in learning about environmentally friendly concepts and creative entrepreneurship from an early age. The activity was held on August 9, 2025, involving participants from among students, teachers, and the community around the school. The implementation method included four stages, namely (1) socialization and environmental education on the basic principles of ecoprint, (2) technical training in ecoprint making, (3) hands-on practice using natural materials, and (4) evaluation and reflection on the results of the work. The technique used was the method of soaking tote bags in hot water at a temperature of 80–90°C using natural materials such as teak leaves, guava leaves, cassava leaves, and hibiscus flowers available around the school. The results of the activity showed that the hot water soaking technique produced soft natural motifs, harmonious color gradations, and leaf patterns

The prevalence of hypertension in Jambi City has continued to increase over the past five years, including in the Simpang Kawat Community Health Center (Puskesmas Simpang Kawat). Meanwhile, the cost of hypertension care and treatment for the community is relatively high, especially if complications arise and are not covered by insurance, which can lead to catastrophic expenses that weaken households' economic conditions. This community service activity aims to provide education and outreach regarding hypertension and its impact on healthcare costs. Thirty people with hypertension in the Simpang Kawat Community Health Center (Puskesmas Simpang Kawat) participated in the activity. The core activities included providing information about hypertension and its consequences on healthcare costs, anti-hypertension exercises, outreach regarding the risk of catastrophic expenses, and explanations of various government support programs. The results showed that 80% of participants experienced a significant increase in knowledge, and there was a difference in knowledge levels between before and after the implementation of the Community Health Center (PPM) (p=0.000). The government and the Community Health Center are recommended to strengthen campaign efforts to encourage the community to adopt a healthy lifestyle and actively participate in health programs that can help reduce healthcare costs and avoid catastrophic expenses

Bangunan yang berada di daerah rawan gempa dengan tanah lunak cenderung memiliki tingkat kerentanan yang lebih tinggi. Dalam merancang struktur bangunan bertingkat, beban gempa menjadi salah satu parameter utama yang sangat berpengaruh. Kekuatan sebuah bangunan ditentukan oleh elemen-elemen struktur yang menopangnya dan kolom merupakan elemen struktur yang memiliki peran penting dalam konstruksi. Jika kolom mengalami kegagalan, bangunan yang ditopangnya berpotensi runtuh. Oleh karena itu, rendahnya ketahanan konstruksi di wilayah ini tetap menjadi permasalahan yang sedang diteliti saat ini. Tujuan penelitian ini untuk mengetahui seberapa jauh pengaruh variasi dimensi kolom terhadap struktur bangunan terhadap gempa, sehingga diperoleh ukuran dimensi kolom yang paling optimal. Pada penelitian ini, objek yang digunakan adalah bangunan 8 lantai yang terdiri dari lantai 1-3 merupakan kantor dan lantai 4-8 merupakan hunian. Pada perencanaan ulang bangunan ini berpedoman pada persyaratan beton struktural (SNI 2847:2019), perencanaan ketahanan gempa (SNI 1726:2019), dan beban minimum untuk perancangan bangunan gedung dan struktur lain (SNI 1727:2020), dengan pemodelan menggunakan software ETABS V.22. Redesain bangunan ini untuk mengetahui ukuran dimensi kolom yang paling optimal. Hasil penelitian perubahan dimensi kolom terhadap kekuatan struktur bangunan yakni dengan memperbesar dimensi kolom, kapasitas penampang bertambah yang dapat meningkatkan ketahanan kolom terhadap beban gempa. Selain itu, dimensi yang lebih besar juga membantu mengurangi tegangan aksial pada kolom, sehingga menurunkan risiko kegagalan akibat tegangan berlebih atau kelelahan material. Semakin besar dimensi kolom yang digunakan maka semakin kecil nilai simpangan yang dihasilkan. Artinya dengan dimensi kolom yang lebih kecil memiliki resiko yang lebih tinggi, sebab nilai simpangan lebih dekat dengan batas yang diijinkan. Akan tetapi hasil analisis menunjukkan bahwa dimensi kolom dengan berbagai variasi masih aman dari pengaruh delta izin.

Beban gempa merupakan representasi dari beban statik ekuivalen yang diaplikasikan pada seluruh bagian struktur bangunan atau pada bagian tertentu, dengan tujuan menirukan efek gerakan tanah akibat aktivitas seismik. Di antara berbagai metode analisis, analisis time history dikenal sebagai teknik yang paling presisi dalam memprediksi respons struktur terhadap gempa. Namun, penerapan metode ini memerlukan proses perhitungan yang kompleks dan cukup menyita waktu. Untuk menyederhanakan proses tersebut, digunakan pendekatan analisis statik ekuivalen, yang terbukti cukup efektif, khususnya pada struktur bangunan yang bersifat simetris. Prosedur perhitungan dalam metode ini mencakup evaluasi gaya geser serta simpangan antar lantai, dengan studi kasus berupa gedung perkantoran yang berlokasi di Kota Semarang. Perangkat lunak SAP2000 dimanfaatkan sebagai alat bantu dalam melakukan analisis tersebut. Berdasarkan hasil analisis, gaya geser dan simpangan antar lantai yang diperoleh telah sesuai dan memenuhi ketentuan yang ditetapkan dalam standar SNI 1726:2019 untuk bangunan gedung.

This research aims to: (1) differentiated biology learning tools with ethnoscience content, (2) determine the practicality of differentiated biology learning tools with ethnoscience content and (3) determine the effectiveness of differentiated biology learning tools with etnoscience content in improving critical thinking skills and environemantal literacy of phase E student. This study is a development research using the Design and Development Research model, which adopts the ADDIE development model comprising five stages: (1) analysis, (2) design, (3) development, (4) implementation, and (5) evaluation. The research method used is the Quasi-Experimental Design with a Nonequivalent Control Group Design approach. Data analysis includes normality tests, Levene's homogeneity test, and the Normalized Gain Score (N-Gain Score) test. The limited trial involved 30 eleventh-grade students from SMA Negeri 1 Simpangkatis. The field trial involved tenth-grade students from the same school, consisting of 31 students in the experimental class and 30 students in the control class. The data collection instruments consisted of questionnaires to gather responses from experts, teachers, and students regarding the biology learning tools, as well as tests to measure students' critical thinking skills and environmental literacy. Instrument validity was ensured through content validation by subject matter experts and media experts. The practicality of the learning tools was evaluated based on feedback from teachers and students. The results of the study showed that: (1) the developed biology learning tools were rated as highly feasible by experts; (2) the tools were considered highly practical by both teachers and students; and (3) the tools were effective in improving students' critical thinking skills and environmental literacy. This effectiveness was supported by the average gain score analysis in the experimental class, which was 0.71 for critical thinking skills (high category) and 0.57 for environmental literacy (moderate category).

Community Service Program (KKN) is one of the forms of community service carried out by university students. The purpose of KKN activities is to apply the knowledge and skills possessed by students in helping to solve problems faced by the community in the KKN area. Simpang Rimba Village, located in Simpang Rimba District, is one of the locations where KKN is implemented by students. The focus of KKN activities in Simpang Rimba Village is on four main aspects: Legal Empowerment, Economic Empowerment, Food Security, and Creative Economy. The method used in this research is observation and field study, conducted directly on site, and categorized as descriptive qualitative research. The results of the KKN implementation in Simpang Rimba Village show that the programs carried out can improve the knowledge and skills of the local community. Furthermore, KKN activities can also foster leadership, independence, and student awareness of the issues faced by the community.

This study discusses the role of the school principal in building the discipline character of students at SD Negeri 51/1 Simpang Kubu Kandang. The issue at hand is the low level of discipline and the underdeveloped character of the students, which hinders the teaching and learning process. This study aims to analyze the principal's role, the challenges faced, and the efforts made in shaping the students' discipline character. The research method used is qualitative with a case study approach, and data analysis techniques include reduction, presentation, and verification. The findings show that the principal plays a role as a leader who provides direction, a supervisor who monitors the implementation of policies, and a motivator who encourages students to improve their discipline. The challenges faced include the lack of control over students' discipline outside the school and the low awareness of students in applying disciplined behavior. The solutions implemented by the principal include providing role models, guidance, reprimands, and carrying out habituation activities to instill discipline. This study provides an overview of the important role of the school principal in creating a discipline culture that supports the teaching and learning process.

The increase in traffic volume in urban areas often triggers various problems, especially at Road intersection points that have a high level of interaction between vehicles. One of the locations that experience these problems is the intersection with the island of traffic without signal on Jl. Tebu-Jl. Tabrani Ahmad, City Of Pontianak. This study aims to analyze the performance of the intersection in the existing condition and project its performance in the next five years (2030), as well as formulate alternative treatment that can improve the smoothness of traffic. The analysis method refers to Indonesian road capacity guidelines (PKJI) 2023 and modeling using software PTV VISSIM. The data collected include intersection geometry, traffic volume, and vehicle speed. Traffic volumes were obtained through CCTV recordings for three consecutive days, then processed and presented in the form of tables and graphs for easy interpretation. The results of the existing condition analysis showed that the degree of saturation (DS) reached 0.407 with an average delay of 9.539 seconds (Level of Service/LOS B) based on PKJI, while VISSIM simulation resulted in a delay of 12.54 seconds (LOS B). The five-year projection (2030) shows an increase in DS to 0.878 with a delay of 15.177 seconds (LOS C) from PKJI, and 23.35 seconds (LOS C) from VISSIM, which indicates a decrease in Junction performance as traffic grows. Two handling alternatives were analyzed, namely the construction of roundabouts and the implementation of traffic flow management. VISSIM simulation shows that the roundabout can reduce the delay to 14.31 seconds with a queue length of 20.34 m (LOS B), while the flow management produces a delay of 11.81 seconds with a queue of 13.14 m (LOS B). This result confirms that both alternatives are able to improve the performance of the intersection compared to the projected condition without handling, so that it can be a technical recommendation for urban traffic planning in Pontianak.