This paper considers the effectiveness of a truck appointment system in improving the yard efficiency of the container terminal. This research uses truck appointment information to improve the import container retrieval operation and reduce container rehandles by adopting an advanced container location assignment algorithm. By reducing the container rehandles, the terminal could improve yard cr...

This paper describes the development of an algorithm that is able to track the pose of a vehicle as it approaches a rotating platform with a number of scanning range lasers. The target application is path planning and traffic management systems that are able to assist drivers of mining trucks when parking their vehicles with respect to loading machinery (ie. swing-loaders, rope-shovels and exca...

A nonlinear wheel loader model with nine states and four control inputs is utilized to study the fuel and time efficient optimal control of wheel loader operation in the short loading cycle. The wheel loader model consists of lifting, steering and powertrain subsystems where the nonlinearity originates from the torque converter in the drivetrain. The short loading cycle, from loading point to a...

A survey was conducted on 12 cable yarding operations in northern Italy, with the purpose of determining fuel consumption and time use. The observation unit individual operation, intended as all activities needed to complete harvesting a sale (mean = 500 m3 timber). All teams were equipped tower yarder, an excavator-based loader or processor truck tractor trailer, if intermediate transportation...

A multi-bale handling unit offers an advantage for the efficient hauling of round bales. Two empty racks on trailers are left at a satellite storage location loading while truck tractor delivers two loaded to biorefinery, thus uncoupling and operations increasing efficiency both. The projected 10 min trailer exchange time equals unload biorefinery achieved by lifting off full replacing them wit...

Keberhasilan suatu proyek dapat diukur dari dua hal, yaitu keuntungan yang didapat serta ketepatan waktu penyelesaian proyek. Hal ini untuk menyelesaikan dengan tepat maka salah satu harus diperhatikan adalah pemilihan alat berat. Pada penelitian dilakukan mengetahui produktivitas berat, biaya dan dibutuhkan pekerjaan lapis pondasi agregat kelas A digunakan metode Bina Marga Tahun 2018. Hasil a...

The choice of transportation system has an important impact on the production efficiency and economic behavior underground mines. Trackless vehicle gradually become main method in mines because mining companies have realized that can be improved using advanced mechanization automation process. extracted ore is loaded onto trucks by loaders situ, then drive to passes for unloading Trucks load un...