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"Deceleration rate, time to collision and impact speed have been commonly employed as accident risk indicators. However, it is hard to assess the level of accident risk since these indicators have not been developed with measurable score criteria. This study focuses on the determination of measurable risk indicators which could be used to assess accident risk level and to determine more appropriate accident risk management strategies by using the descriptive qualitative approach. The data were collected from a braking maneuver test conducted on a dry and level closed circuit course. Risk was a function of accident probability and its possible consequences, while accident probability was determined based on the safety factor, i.e. the ratio of available stopping sight distance (ASSD) to minimum SSD (MSSD), which was used to determine the margin of safety. Subsequently, accident consequence was determined using the impact speed at a predicted point of collision along the braking distance path. The results show that accident risk could be easily determined using the proposed indicators, whilst an objective and appropriate accident risk management strategy could be determined based on the minimum margin of safety value which could be obtained from each risk exposure."

"Sektor pertambangan merupakan sektor pekerjaan yang sangat sarat dengan kecelakaan kerja. Hal ini disebabkan karena karakteristik pekerjaan yang berkaitan dengan kondisi alam yang beragam dan sulit diprediksi kondisinya. Berdasarkan data statistik dari Kementerian ESDM Tahun 2009, di lokasi PTA terjadi kasus kecelakaan keija terjepit secara nasional sebesar 4 kali kecelakaan. Untuk mengetahui faktor-faktor yang menjadi penyebab kecelakaaan terjepit di perusahan pertambangan dianalisis menggunakan konsep dalam buku human error in mine safety oleh Geoff Simpson, dkk mengenai konsep human error likelihood influence framework. Dimana, kecelakaan keija dapat disebabkan oleh beberapa hal diantaranya adalah faktor organisasi, pengawasan/supervisi, training dan kompetensi, SOP (Standards Operating Procedure), peraturan, kondisi tempat kerja/lingkungan kerja serta adanya interaksi antara pekerja dengan mesin/peralatan yang digunakan (Simpson, 2009).

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Sector mining is one of work sector that really crowded with job accident. It corresponds to work characteristic that gets bearing face to face with nature condition that really medley and difficult being predicted its condition so causing in height job accident zoom, Base statistical of ESDM'S ministry Year 2009, at PTA was happen 4 cut accident happening work accident ca.w is in a bind national ala as big as 4 accident time be in a bind. To understand accident causation factor in mining sector can be analyze by use of framework in books human error in mine safety by Geoff Simpson with concept human error likelihood influence framework. In this book explain that accident can caused by safety management system/organization and safety culture.,. supervision/first line management roles and responsibilities, training and competence, codes, rules and procedures, the workplace environment, the person and machine interface (Simpson, 2009)."