In this study, we consider the application of a simulated annealing (SA) heuristic to the truck and trailer routing problem with time windows (TTRPTW), an extension of the truck and trailer routing problem (TTRP). TTRP is a variant of the well-known well-studied vehicle routing problem (VRP). In TTRP, some customers can be serviced by either a complete vehicle (that is, a truck pulling a traile...

An algorithm for real time estimation of truck traffic in multi-lane freeway is proposed. The algorithm uses data from single loop detectors—the most widely installed surveillance technology for urban freeways in the US. The algorithm works for those freeway locations that have a truck-free lane, and exhibit high lane-to-lane speed correlation. These conditions are met by most urban freeway loc...

Truck and shovel operations comprise approximately 60% of the total operating costs in open pit mines. In order to increase productivity and reduce the cost of mining operations, it is essential to manage the equipment used with high efficiency. In this work, the chance-constrained goal programing (CCGP) model presented by Michalakopoulos and Panagiotou is developed to determine an optimal truc...

Whip type antennas are probably the most commonly used antennas in portable RF systems, such as cordless and cellular phones, RF enabled laptop computers, , and handheld computers. Whip antennas are almost always mounted on the chassis which contains the radio and other electronics. Normally in mobile phone two set of antenna used for receiving different application such as GSM and GPS. In this...

This paper presents an alternative concept for the production of a lightweight vehicle chassis, using preformed flat panels assembled into a primary structure by the simple processes of CNC routing, folding and adhesive bonding. Minimal tooling and a fully CAD integrated, software driven process provide considerable advantages in prototype development and series production: modifications can be...

Comfort is an attribute that today’s drivers demand more and more. Seat is one of the important features of vehicle and there is the place where the professional driver spends most of their time. According to ‘European Union Legislation for Drivers and Promote’, the weekly driving time for truck drivers shall not exceed 56 hours. Assuming eight week vacation and one more for holiday, the truck ...

An important problem for forestry in-field chipping operations is the efficient daily truck transportation of chips from different coupes being harvested, with known supplies, to customer destinations with known daily demands. This paper presents initial results from a trial with FastTRUCK, a software tool that uses a simulated annealing approach to optimise truck schedules. The software was de...

Driver fatigue is an important safety issue for long-haul truck drivers. To provide an efficient means of obtaining sleep, long-haul truck drivers often use tractors equipped with sleeper berth units. Depending on the type of cargo and distances traveled, long-haul truck drivers either drive in teams or alone as single drivers. Team drivers, therefore, typically sleep in a moving truck whereas ...

Background: HIV thrives on mobile population. Truck drivers particularly the long distance truck drivers are more vulnerable to HIV infection, because they travel a lot, remain cut off from the mainstream society, often engage in activities such as having unsafe sex with commercial sex workers and fellow crew members, in order to reduce their loneliness. Material & Methods: In this study 75 tru...