Journal ArticleDOI
Vehicle Routing Problem: Simultaneous Deliveries and Pickups with Split Loads and Time Windows
TLDR
In this article, the authors formulated the vehicle routing problem of simultaneous deliveries and pickups with split loads and time windows (VRPSDPSLTW) as a mixed-integer programming problem and developed a hybrid heuristic algorithm to solve this problem.Abstract:
The vehicle routing problem with simultaneous deliveries and pickups (VRPSDP) has attracted much research interest because of the potential to provide cost savings to transportation and logistics operators. Several extensions of VRPSDP exist. Of these extensions, the simultaneous deliveries and pickups with split loads problem (SDPSLP) has been proposed to eliminate vehicle capacity constraints, as well as allow the deliveries or pickups for a customer to be split into multiple visits. Although delivery and pickup activities are often constrained by time windows, few studies have considered such constraints when SDPSLP has been addressed. To fill the gap, this paper formulates the vehicle routing problem of simultaneous deliveries and pickups with split loads and time windows (VRPSDPSLTW) as a mixed-integer programming problem. A hybrid heuristic algorithm was developed to solve this problem. Solomon data sets with minor modifications were applied to test the effectiveness of the solution algorithm. The r...read more
Citations
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Journal ArticleDOI
Routing model applied to forest inventory vehicles planning
Cristiane Coutinho Meneguzzi,Gilson Fernandes da Silva,Geraldo Regis Mauri,Adriano Ribeiro de Mendonça,Antonio Almeida de Barros Junior +4 more
TL;DR: The Vehicle Routing Problem model is used to optimize the Forest Inventory Activity Planning and the importance of using this technique for improving this activity is analyzed.
Proposition d'une méthodologie multicritère pour la résolution du problème d'ordonnancement d'un projet avec prise en compte des compétences et des ressources
TL;DR: The objective is to study two extensions of the basic problem by developing a method to solve the multi-objective RCPSP while considering the skills mastered by the resources and the skills required by each project activity.
Sustainable reverse logistics for household plastic waste
TL;DR: In this paper, the authors compared municipal solid waste (MSW) management practices in various EU countries in order to identify the characteristics and key issues from waste management and reverse logistics perspectives, and concluded that waste recycling is a multi-disciplinary problem and that research opportunities can be identified by considering different decision levels simultaneously.
Dissertation
Smart Card Data Mining and Inference for Transit System Optimization and Performance Improvement
Journal ArticleDOI
Segmentation for Efficient Supervised Language Annotation with an Explicit Cost-Utility Tradeoff
TL;DR: A method for automatically segmenting a corpus into chunks such that many uncertain labels are grouped into the same chunk, while human supervision can be omitted altogether for other segments, to find the segmentation that optimizes supervision efficiency.
References
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Journal ArticleDOI
Algorithms for the vehicle routing and scheduling problems with time window constraints
TL;DR: This paper considers the design and analysis of algorithms for vehicle routing and scheduling problems with time window constraints and finds that several heuristics performed well in different problem environments; in particular an insertion-type heuristic consistently gave very good results.
Journal ArticleDOI
Computer solutions of the traveling salesman problem
TL;DR: Two algorithms for solving the (symmetric distance) traveling salesman problem have been programmed for a high-speed digital computer and are based on a general heuristic approach believed to be of general applicability to various optimization problems.
Journal ArticleDOI
The vehicle routing problem: An overview of exact and approximate algorithms
TL;DR: In this paper, some of the main known results relative to the Vehicle Routing Problem are surveyed.
Journal ArticleDOI
Savings by Split Delivery Routing
Moshe Dror,Pierre Trudeau +1 more
TL;DR: This paper examines a relaxed version of the generic vehicle routing problem, in which a delivery to a demand point can be split between any number of vehicles, and demonstrates the potential for cost savings through split deliveries.
Journal ArticleDOI
Solving the pickup and delivery problem with time windows using reactive tabu search
William P Nanry,J. Wesley Barnes +1 more
TL;DR: In this article, a reactive tabu search approach is proposed to solve the pickup and delivery problem with time windows using three distinct move neighborhoods that capitalize on the dominance of the precedence and coupling constraints.