The problem of staff scheduling at a truck hub for loading and stripping of the trucks is an important and difficult problem to optimize the labor efficiency and cost. The trucks enter the hub at different hours a day, in different known time schedules and operating hours. In this paper, we propose a goal programming to maximize the labor efficiency via minimizing the allocation cost. The propo...

ID: 321 It is believed that increasing truck volumes contribute to traffic congestion, pavement deterioration and crashes due to differences in the physical and operational characteristics of trucks and passenger cars. A 2002 US DOT report showed that the number of crashes involving commercial trucks had increased by 40.3% over the last two decades. Based on Insurance Institute for Highway Safe...

Until recently, natural gas was an also-ran in the sweepstakes for changing the face of transportation in the United States, even though expanded reliance on natural gas vehicles (NGVs) holds the promise of reducing carbon emissions, reducing dependence on oil, and even lowering transportation costs. Recently, however, interest in natural gas as a transportation fuel has grown, as shale gas res...

This paper studies multiple cross-dockings where the loads are transferred from origins (suppliers) to destinations (customers) through cross-docking facilities. Products are no longer stored in intermediate depots and incoming shipments are consolidated based on customer demands and immediately delivered to them to their destinations. In this paper, each cross-docking has a covering radius tha...

The article presents a study and analysis of the causes deformation slopes sides quarry indicates that magnitude nature processes depend on height ledge, angle slope slopes, physical mechanical properties, lithological structural features instrument array geodynamic activity fault zones. influence zones transport rock masses is justified. zone deformed ore deposit, which affect movement mass, s...

Heavy-duty diesel vehicles contribute a substantial fraction of nitrogen oxides and particulate matter to on-road vehicle emission inventory. The objectives of this study are to estimate roadway link-based emission rates for heavy-duty trucks for use in emission inventory estimation, and to quantify the impact of factors affecting truck emissions. A speed-acceleration modal emissions approach i...

One possible step for reducing humans’ use of fossil fuel due to transport tasks is replace diesel trucks with battery electric ones. This paper introduces the energy distribution diagram, which makes it easy visualise trucks’ daily consumption over their full service life. The used investigate driving patterns are suitable cost-effective when compared commercial trucks. It shown that capacity ...