The Ports of Long Beach and Los Angeles are the largest container port complex in North America and fifth largest in the world. Growth in U.S. Pacific Rim trade has put pressure on the landside transportation systems serving these two ports. In order to address this growth and mitigate environmental impacts, the ports are implementing new operational strategies and infrastructure improvements. ...

This study examined Chinese truck drivers' attitudes toward receiving feedback about their driving performance by in-cab technology and explored the best ways of providing feedback to truck drivers in China. The similarities and differences between US and Chinese drivers were also compared. Survey data were collected from 200 long-haul truck drivers in China to provide quantitative information....

Exposure to hydrofluoric acid (HF) causes corrosive chemical burns and potentially fatal systemic toxicity. Car and truck wash cleaning products, rust removers, and aluminum brighteners often contain HF because it is efficient in breaking down roadway matter. The death of a truck wash worker from ingestion of an HF-based wash product and 48 occupational HF burn cases associated with car and tru...

The purpose of the research is to improve method for calculating lifetime bevel gears with a circular tooth driving axle BELAZ dump truck hydromechanical transmission. An analysis domestic and foreign calculation methods showed that when determining contact stresses in gearing, influence modification side surfaces teeth on magnitude internal dynamic loads not taken into account, which leads sig...

OBJECTIVE High risks for locomotor diseases have been reported for bus and truck drivers in general; however, little is known about the specific risks of long-haul truck drivers. METHODS Standardised hospitalisation ratios (SHR) for different locomotor diseases of bus drivers, long-haul truck drivers and other truck drivers were compared with each other and with the general Danish working pop...

Truck-involved crashes have higher crash severity than non-truck-involved crashes. There have been many studies about the frequency of crashes and the development of severity models, but those studies only analyzed the relationship between observed variables. To identify why more people are injured or killed when trucks are involved in the crash, we must examine to quantify the complex causal r...

Milk collection is a problem which is well known in rural areas all around the world. This paper considers a real world problem for a Norwegian dairy company collecting raw milk from farmers. Chao (2002) and Scheuerer (2006) describe the Truck and Trailer Routing Problem (TTRP) as a variant of the traditional Vehicle Routing Problem (VRP). In this problem customers are divided into vehicle cust...

For mobile robots operating in real-world environments, reactive navigation is a useful complement (or even replacement) to pure plan-based metric navigation. Reactive navigation is performed with respect to local perceived features, rather than a global metric reference frame, and can provide reduced installation costs, increased flexibility, and robustness to changes in the environment. To be...

3 COPA, Department of Industrial Engineering, Universidad de los Andes, Bogota, Colombia {amedagli, nvelasco}@uniandes.edu.co In the truck and trailer problem (TTRP), raised for instance by milk collection in rural areas, a heterogeneous fleet composed of mt trucks and mr trailers (mr < mt) serves a set of customers N = {1, 2, ..., n} from a main depot, denoted as node 0. Each customer i ∈N h...

Many professional truck drivers experience low back pain (LBP) which is believed to be associated with exposure to whole body vibration (WBV). As a part of a randomized controlled trial, this study measured WBV exposures from 98 professional truck drivers continuously during their regular work shift (8-12 hours). The daily weighted average A(8), vibration dose value VDV(8), and vector sum A(8) ...