Electronic Theses and Dissertation

Kecelakaan lalu lintas yang melibatkan bus dan minibus di jalan lintas Provinsi Aceh menjadi permasalahan yang serius karna berdampak pada keselamatan pengemudi, penumpang, serta pengguna jalan. Penelitian ini menggunakan metode House of Risk for Safety and Health (HORshe), yaitu pengembangan dari metode House of Risk (HOR) yang dikombinasikan dengan Hazard Identification and Risk Analysis (HIRA). Tujuan dari penelitian ini untuk mengidentifikasi faktor utama penyebab kecelakaan serta merumuskan prioritas perbaikan. Data diperoleh melalui wawancara kepada pihak-pihak terkait, seperti pengemudi dan manajemen perusahaan bus dan minibus, dinas perhubungan Aceh, direktorat lalu lintas polda Aceh, masyarakat transportasi Indonesia wilayah Aceh. Analisis dilakukan dalam tiga tahap, yaitu identifikasi risk agent, kemudian dilakukan perhitungan nilai Aggregate Risk Potential (ARP) untuk menentukan tindakan mitigasi prioritas, dilanjutkan dengan evaluasi terhadap impelementasi tindakan mitigasi. Hasil penelitian menunjukkan bahwa dari 19 penyebab kecelakaan terdapat 9 penyebab utama dan faktor manusia merupakan penyumbang risiko tertinggi dengan persentase sebesar 65,4%, faktor kendaraan 10,0% serta faktor lingkungan dan lainnya 4,1%. Nilai ARP tertinggi terdapat pada risk agent kurang antisipasi pengemudi sebesar 2.880. Tindakan mitigasi prioritas difokuskan pada pembuatan pita penggaduh untuk menekan kasus kecelakaan akibat kelebihan kecepatan, peningkatan pelatihan safety driving secara berkala, dan perawatan sistem rem secara rutin dengan perlambatan paling sedikit 5 m/s2 yang didapatkan sesuai dengan priority rank. Evaluasi menggunakan expert judgment dan modified Delphi method didapatkan hasil bahwa tindakan mitigasi yang diterapkan dapat secara signifikan mengurangi dampak, frekuensi kejadian, dan kemudahan deteksi dengan penurunan sebesar 40,3% setelah implementasi.

Traffic accidents involving buses and minibuses on the Aceh Provincial highway are a serious problem because they affect the safety of drivers, passengers, and road users. This study uses the House of Risk for Safety and Health (HORshe) method, which is a development of the House of Risk (HOR) method combined with Hazard Identification and Risk Analysis (HIRA). The purpose of this study is to identify the main factors causing accidents and to formulate improvement priorities. Data were obtained through interviews with related parties, such as drivers and management of bus and minibus companies, the Aceh transportation agency, the Aceh police traffic directorate, and the Indonesian transportation community in the Aceh region. The analysis was carried out in three stages, namely identifying risk agents, then calculating the Aggregate Risk Potential (ARP) value to determine priority mitigation actions, followed by an evaluation of the implementation of mitigation actions. The results of the study showed that of the 19 causes of accidents, there were 9 main causes and human factors were the highest risk contributors with a percentage of 65.4%, vehicle factors 10.0% and environmental and other factors 4.1%. The highest ARP value is found in the risk agent of driver's lack of anticipation of 2,880. Priority mitigation actions are focused on the creation of noise bands to reduce accident cases due to excess speed, increasing periodic safety driving training, and routine brake system maintenance with a deceleration of at least 5 m/s2 obtained according to the priority rank. Evaluation using expert judgment and modified Delphi method showed that the mitigation actions implemented can significantly reduce the impact, frequency of occurrence, and ease of detection with a decrease of 40.3% after implementation.