نتایج جستجو برای: truck scheduling

تعداد نتایج: 73254  

Journal: :Journal of intelligent and connected vehicles 2023

Global Navigation Satellite System (GNSS) data is an inexpensive and ubiquitous source of activity data. Positioning (GPS) example such Although there have been several studies about inferring device using GPS from a consumer device, freight presents unique challenges for having low variable frequency, long transmission gaps, frequent unpredictable ID resetting preserving privacy. This study ai...

2009
Ralph Kunze Richard Ramakers Klaus Henning Sabina Jeschke

One opportunity to manage the increase of freight transportation and to optimize utilization of motorway capacities is the concept of truck platoons. With the aid of Advanced Driver Assistance Systems, trucks are electronically coupled keeping very short gaps (approx. 10 meters) to form truck platoons on motorways. This contributes to optimisation of traffic flow and reduction of fuel consumpti...

2007
Bor-Shong Liu Chih-Hung Hsu Hsien-Yu Tseng Tung-Chung Chia

The objective of this study was utilized the head and eye-tracker system to examine the effects of visual field between sedan and mixed concrete truck on road sign recognition. Participants were asked to search the traffic signs on driving video and give a verbal report instantaneously for visual search. Results of ANOVA revealed that the mode of vertical direction of eye gaze were significant ...

2017
John Gunnar Carlsson Siyuan Song

We determine the efficiency of a delivery system in which an unmanned aerial vehicle (UAV), or a fleet of UAVs, provides service to customers while making return trips to a truck that is itself moving. In other words, a UAV picks up a package from the truck (which continues on its route), and after delivering the package, the UAV returns to the truck to pick up the next package. Although the ha...

2016
Changkun Chen Jun Zhang

BACKGROUND Fatigue driving is a leading cause of traffic fatalities and injuries in China, especially among heavy truck drivers. The present study tried to examine which and how factors within the human-vehicle-roadway-environment system contribute to the occurrence of crashes involving fatigued truck drivers. FINDINGS To reduce such risk on the road, a total of 9168 crashes which occurred in...

Journal: :IJORIS 2011
Subhro Mitra Joseph G. Szmerekovsky Nikita Barabanov

This paper analyzes the routing of agricultural freight from the fields to the elevators. A number of optimization models are built to analyze the effects of truck type restrictions in the truck mix on the overall system cost of delivering from fields to elevators. The models account for both the selection of truck type and load type for deliveries while respecting the load restrictions imposed...

2014

Transport networks vary and change over time. This paper aims to contribute to raising the level of safety in the road transport industry (trucking industry), by assessing the current state of truck accidents, drivers, and regulations which control the land transport in Saudi Arabia. This has been conducted through surveys and field interviews with specialized authorities. Moreover, to evaluate...

2016
Jennifer David

The problem of multi-vehicle path planning can be treated as a machine scheduling or a vehicle routing problem with definite temporal, spatial and other constraints. We consider the scenario of path planning of multiple Automated Guided Vehicles (AGVs) and Automated Trucks (ATs) in a Ship-Container Terminal area*. Our main focus is on developing global and local path planning methods for each o...

Journal: :J. Intelligent Manufacturing 2001
Luca Maria Gambardella Monaldo Mastrolilli Andrea Emilio Rizzoli Marco Zaffalon

A solution to the problems of resource allocation and scheduling of loading and unloading operations in a container terminal is presented. The two problems are formulated and solved hierarchically. First, the solution of the resource allocation problem returns, over a number of work shifts, a set of quay cranes used to load and unload containers from the moored ships and the set of yard cranes ...

Journal: :European Journal of Operational Research 2017
Christian Tilk Ann-Kathrin Rothenbächer Timo Gschwind Stefan Irnich

With their paper ”Symmetry helps: Bounded bi-directional dynamic programming for the elementary shortest path problem with resource constraints” [Discrete Optimization 3, 2006, pp. 255–273] Righini and Salani introduced bounded bidirectional dynamic programming (DP) as an acceleration technique for solving variants of the shortest path problem with resource constraints (SPPRC). SPPRCs must be s...

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