BACKGROUND Given the long hours on the road involving multiple and interacting work stressors (i.e., delivery pressures, irregular shifts, ergonomic hazards), commercial drivers face a plethora of health and safety risks. Researchers goal was to determine whether and to what extent long-haul trucker work schedules influence sleep duration and quality. METHODS Survey and biometric data collect...

LKAB’s Kiruna Mine is located above the Arctic Circle in northern Sweden, and produces about 24 million tons of iron ore per year, making it is the second largest underground mine in the world today. The orebody, a world-class high-grade magnetite deposit, is approximately 4 km long and 80 m wide on average, and lies roughly in the north-south direction, with a dip of some 60 degrees. Surface m...

Open-pit mines generally have operational problems such as puddling and inappropriate water flow over haul roads, particularly if located in areas with high rainfall indices. These situations increase truck cycle times, promote rapid deterioration of haul-road wearing-course material, reduce productivity due to downtime road maintenance. In addition, costs are raised the frequency maintenance t...

Because haul trucks are used extensively in mining, the operators of these trucks are exposed to various risks and hazards inherent to this occupation. The objective of this work was to profile injuries sustained during haul truck operations, to identify priorities for further investigation, and to determine potential injury prevention strategies. Data from the Mine Safety and Health Administra...

The transformation of the present haulage industry to a more sustainable system is a major challenge and a high priority in the political agenda. In the terrestrial freight market high hopes rely on the intermodal rail-road transport. However, intermodal transport is used for a rather small market segment of concentrated freight flows over long distances. This intermodal transport is based on t...

Optimisation tools which determine the best layout for access and haulage in an underground mine address an important and difficult mine design problem. The complexity of the problem can be compared to the task of optimising the final pit design in an open pit, together with the pit haul roads required. The strategic design of an underground mine layout must address the location of haulage shaf...

In this paper we study a long-haul truck scheduling problem where path has to be determined for vehicle traveling from specified origin destination. We consider refueling decisions along the path, while accounting heterogeneous fuel prices in road network. Furthermore, comply with Hours of Service (HoS) regulations. Therefore, is defined by actual trajectory traveled vehicle, as well locations ...

PT Vale Indonesia Tbk, merupakan salah satu perusahaan pertambangan nikel terbesar di dengan luas 70.566 hektar. Salah dari bagian Kontrak Karya adalah Blok Bahodopi yang masih dalam tahap eksplorasi lanjutan. Produksi direncanakan dimulai pada tahun 2023, sehingga dibuat perencanaan jangka panjang penambangan. Tujuan penelitian ini yaitu membuat desain pit, mine haul road, disposal, dyke dan q...