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All Journal BANGUN REKAPRIMA
Lalu Yahya Surya Buana
Politeknik Negeri Semarang
Humanities Civil Engineering, Building, Construction & Architecture Education Engineering Other

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KAJIAN KARAKTERISTIK LALU LINTAS DAN EVALUASI ALTERNATIF PENINGKATAN KAPASITAS RUAS JALAN MAJAPAHIT KOTA SEMARANG (STUDI KASUS : SEGMEN JALAN DEPAN POLSEK PEDURUNGAN SAMPAI PASAR PENGGARON): KAJIAN KARAKTERISTIK LALU LINTAS DAN EVALUASI ALTERNATIF PENINGKATAN KAPASITAS RUAS JALAN MAJAPAHIT KOTA SEMARANG (STUDI KASUS : SEGMEN JALAN DEPAN POLSEK PEDURUNGAN SAMPAI PASAR PENGGARON) Muhamad Khudza Alfi Himam; Tjokro Hadi; Vera Mahardika; Fajar Jati Nugroho; Muhammad Reza Pahlevi; Lalu Yahya Surya Buana; Imam Nurhadi
Bangun Rekaprima Vol. 12 No. 1 (2026): April 2026
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v12i1.7634

Abstract

In the urban transportation system, Semarang is one of the cities with a high level of vehicle density, causing traffic congestion. This is also compounded by side obstacles, such as vehicles entering and exiting, stopped vehicles, parking on the roadside, pedestrians, and pedestrians. The Majapahit Road section is one of the intercity connecting roads. Thus, this road plays a very important role in serving a fairly large traffic flow. So that on this Majapahit Road section often experiences congestion that occurs not only at certain hours, because on this road section congestion is also caused by the presence of shopping centers, education, and shops. The important role of Majapahit Road results in vehicle queues and traffic delays, vehicle buildup, travel time delays (delays), and a decrease in the level of road service. Analysis of the performance of urban road sections, with performance indicators namely traffic flow (Q), capacity (C), degree of saturation (DS), free flow speed which is carried out with various performance indicators namely free flow speed (FV), as well as analyzing the level of service (Level of Service / LOS) on the road section. Based on calculations and analysis of this road segment in August 2025, the traffic flow (Q) value was 3,863.55 pcu/hour, the capacity value (C) was 2,821, and the degree of saturation (DS) was 1.37, exceeding 1. These values do not meet the required conditions. The free flow speed (FV) was 37.26 km/hour, and the level of service (LOS) was categorized as level F. Based on the calculation results in 2025, solutions/alternatives are needed to reduce the degree of saturation (DS) value by increasing the capacity value.
PENGUATAN KOMPETENSI PENGUJIAN MUTU BETON MELALUI PELATIHAN REBOUND HAMMER TEST BAGI SISWA SMK: PENGUATAN KOMPETENSI PENGUJIAN MUTU BETON MELALUI PELATIHAN REBOUND HAMMER TEST BAGI SISWA SMK Nor Puji Lestari; Rio Devilito; Fikri Praharseno; Lalu Yahya Surya Buana; Suparman; Sriwahyuningsih Sulaiman; Suwarto; Wahjoedi; Arief Subakti Ariyanto; Parhadi
Bangun Rekaprima Vol. 12 No. 1 (2026): April 2026
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v12i1.7946

Abstract

Competence in concrete quality testing is an essential skill for vocational high school graduates in the construction sector to meet the demands of the construction industry. However, limited laboratory facilities and practical experience often hinder students from mastering non-destructive testing methods, particularly the Rebound Hammer Test. This community service program aimed to improve the knowledge and practical skills of students from the Building Construction and Housing Engineering Program at SMK Negeri Pringsurat in conducting concrete quality assessment using the Rebound Hammer Test. The program was implemented through a sequence of activities, including needs assessment, classroom instruction, equipment demonstration, guided hands-on practice, and evaluation using pre-tests, post-tests, practical observations, and participant response questionnaires. The results demonstrated a significant improvement in students' understanding of concrete quality testing principles, testing procedures, and interpretation of test results, as reflected in higher post-training evaluation scores. Furthermore, participants were able to operate the testing equipment according to standard procedures and expressed highly positive responses toward the practice-based learning approach. The program also strengthened teachers' instructional capacity through the provision of a training module that can be integrated into future laboratory learning activities. Although the program was limited by training duration and the availability of testing equipment, the integrated approach combining theoretical instruction, demonstrations, and guided practice proved effective in enhancing participants' competencies. This training model has the potential to be replicated in other vocational schools to support the development of industry-oriented competencies in the construction sector.
Co-Authors Arief Subakti Ariyanto Fajar Jati Nugroho Fikri Praharseno Imam Nurhadi Muhamad Khudza Alfi Himam Muhammad Reza Pahlevi Nor Puji Lestari Parhadi Rio Devilito Sriwahyuningsih Sulaiman Suparman Suwarto Tjokro Hadi Vera Mahardika Wahjoedi