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Cash Distribution Model with Safety Constraints

Guerrero, William J.; Sarmiento-Lepesqueur, Angélica; Martínez-Agaton, Cristian (SpringerEstados Unidos, 2020)

This article studies the cash distribution problem for bank correspondents that are geographically dispersed, and the associated risk indicators, service times, and logistics costs. The proposed model is a variant of the ...
Cooperation strategies featuring optimization in the school transportation system in Bogota

Rodríguez Parra, German Ricardo; Guerrero, William J.; Sarmiento Lepesqueur, Angélica (Universidad Nacional de ColombiaBogotá, Colombia., 2017)

The transport of students presents important challenges in the case of the city of Bogota, where an important cluster of schools is located in one zone, but there is only one road connecting these schools to residential ...

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Cash Distribution Model with Safety Constraints
...
Guerrero, William J. | 2020

This article studies the cash distribution problem for bank correspondents that are geographically dispersed, and the associated risk indicators, service times, and logistics costs. The proposed model is a variant of the Inventory Routing Problem (IRP) that considers risk-management strategies. The model considers a single cash center with unlimited capacity, from which cash deliveries are carried out by a single vehicle with limited capacity for cash distribution. The bank correspondents to which the cash deliveries are made handles a limited storage capacity. This paper considers the routing decisions of vehicles with hard time window, and risk constraints focused on inducing unpredictability of routes in a cash supply chain. The proposed model is denoted as a risk constrained inventory routing problem with time Windows (RcIRPTW). A mathematical formulation based on mixed-integer programming is proposed, studying the impact of incidents risks in the transport of cash, generating computational experiments on test instances where four types of variations of the IRP are evaluated with several random demand scenarios. The results show the importance of simultaneously optimizing inventory decisions considering routing and inventory costs along with the consideration of risk mitigation strategies. These risk constraints force changing the routes of the vehicle, reducing incidents rates, and reducing route predictability for secure transportation and logistics.

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Cooperation strategies featuring optimization in the school transportation system in Bogota
...
Rodríguez Parra, German Ricardo | 2017

The transport of students presents important challenges in the case of the city of Bogota, where an important cluster of schools is located in one zone, but there is only one road connecting these schools to residential zones. Thus, traffic congestion is high, generating long travel times for students, high operational costs, and mobility problems. This paper studies the impacts of a cooperative strategy between logistics operators using a mixed integer programming mathematical model, to find the optimal design of school routes on a network with the topology that describes the aforementioned road system. Two strategies are compared: a mixed loads strategy, where students from different schools share buses; and a single load strategy, where students from different schools cannot share buses. The objective is to minimize the total operational costs while satisfying the schools’ time windows. Comparative results of the two models using exact and heuristic approaches are presented.

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Listar AI - Centro de Investigación en Manufactura y Servicios – CIMSER por autor "ed4b52885282a50f32a87ef1dff8e8b9"

Cash Distribution Model with Safety Constraints

Cooperation strategies featuring optimization in the school transportation system in Bogota

Envíos recientes

Cash Distribution Model with Safety Constraints

Cooperation strategies featuring optimization in the school transportation system in Bogota

Listar AI - Centro de Investigación en Manufactura y Servicios – CIMSER por autor "ed4b52885282a50f32a87ef1dff8e8b9"

Cash Distribution Model with Safety Constraints ﻿

Cooperation strategies featuring optimization in the school transportation system in Bogota ﻿

Envíos recientes

Cash Distribution Model with Safety Constraints

Cooperation strategies featuring optimization in the school transportation system in Bogota

Cash Distribution Model with Safety Constraints

Cooperation strategies featuring optimization in the school transportation system in Bogota