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Serrano Hernández, Adrián

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https://academica-e.unavarra.es/handle/2454/50027

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Serrano Hernández

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Adrián

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Estadística, Informática y Matemáticas

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ISC. Institute of Smart Cities

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0000-0003-3623-4100

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810953

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2017 - 20193
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End date: 2019 × Subject: Internalization ×

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Now showing 1 - 3 of 3
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    PublicationOpen Access
    Decision making with horizontal cooperation and environmental criteria for transportation: optimization and simulation models for the vehicle routing problem and the facility location problem
    (2018) Serrano Hernández, Adrián; Faulín Fajardo, Javier; Estadística, Informática y Matemáticas; Estatistika, Informatika eta Matematika
    Transportation is a major contributor to the development of the world economy and, at the same time, a major contributor to air pollution and global warming. Additionally, the unstoppable increase of competition as consequence of the globalization, as well as the increasingly service quality demanded by customers related to shorter times and lower costs, are forcing logistics companies to consider new managerial strategies. In this sense, horizontal cooperation among logistic companies is seen as a real alternative for gaining efficiency and sustainability. These agreements can be summarized as any arrangement between partners, tacit or not, which involves more than one company without vertical relationship between them, i.e., no supplier-customer relationship, based on trust and mutual commitment to identify and exploit win-win situations with the goal of sharing benefits (or risks) that would be higher (or lower) than each company would obtain if they acted completely independently. Therefore, in the first part of this thesis, several simulation models have been developed to track the evolution of a coalition in order to quantify horizontal cooperation impact in both economic and environmental sides considering the existence of trust-related issues. Additionally, as a great source of cooperation, a real application consisted on the location of a biorefinery is presented, developed, and discussed. On the other hand, environmental impacts of transportation should be measured and assessed for their integration in the existing optimization models. Thus, the second part of this thesis is devoted to the pricing through a contingent valuation survey of environmental impacts (externalities) and their internalization in the well-known Vehicle Routing Problem. In this sense, several optimization models are developed to assess the impact of the internalization of externalities on the routing decisions of logistics operations.
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    PublicationOpen Access
    Pricing and internalizing noise externalities in road freight transportation
    (Elsevier, 2017) Serrano Hernández, Adrián; Alvarez Indave, Pablo; Lerga Valencia, Iosu; Reyes-Rubiano, Lorena Silvana; Faulín Fajardo, Javier; Institute of Smart Cities - ISC
    People living close to main roads may suffer from the nuisance of traffic and noise pollution. This paper assesses the effect of full routing cost in vehicle routing decisions by internalizing the external cost of noise. On a first step, noise externalities are economically assessed through a contingent valuation procedure. Secondly, a novel methodology is proposed to allocate the external costs to the road network links. Results show significant differences in routing planning depending on the approach: minimization of traditional internal cost versus minimization of full cost. These results encourage further research in pricing and methodologies to internalize externalities.
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    PublicationOpen Access
    Internalizing negative externalities in vehicle routing problems through green taxes and green tolls
    (Institut d'Estadística de Catalunya (Idescat), 2019) Serrano Hernández, Adrián; Faulín Fajardo, Javier; Institute of Smart Cities - ISC
    Road freight transportation includes various internal and external costs that need to be accounted for in the construction of efficient routing plans. Typically, the resulting optimization problem is formulated as a vehicle routing problem in any of its variants. While the traditional focus of the vehicle routing problem was the minimization of internal routing costs such as travel distance or duration, numerous approaches to include external factors related to environmental routing aspects have been recently discussed in the literature. However, internal and external routing costs are often treated as competing objectives. This paper discusses the internalization of external routing costs through the consideration of green taxes and green tolls. Numeric experiments with a biased-randomization savings algorithm, show benefits of combining internal and external costs in delivery route planning.