Alba Martínez López

Universidad de Las Palmas de Gran Canaria | ULPGC · Department of Mechanic Engineering

Implementation of the Global Sulphur Cap (GSC), in January 2020, boosted scrubber installation in vessels to fulfill the new air emission limitations. This increase in scrubbers' use has intensified concern about its environmental performance. Even though achievement of GSC requirements through this mitigation system has been widely proven, the imp...

Fulfilment of the progressive environmental normative involves a singular challenge for Short Sea Shipping (SSS), since it must maintain its competitiveness versus other transport alternatives. For this reason, over the last decade SSS vessels have been the subject of numerous analyses, in terms of operative research, and optimizations, from the ma...

The location of East African ports, along with difficulties in building and maintaining effective road corridors, has led to the consideration of intermodal transport through Short Sea Shipping (SSS) as an alternative for load transport. However, this potential solution is dependent on the ports as consolidation load centres and on the configuratio...

Short sea shipping (SSS) is a concept that refers to short-range maritime transport. SSS has been the subject of detailed analysis and debate in international Transport Policy due to its capacity to articulate intermodal chains for domestic traffic in place of trucking. Due to the fact that SSS was widely assumed as the most sustainable transport o...

Through Directive 2014/94/EU, European Union (EU) has required European ports to provide facilities to enable Cold Ironing (CI) use by 2025. This new reality advances a stricter normative in terms of port emissions. This paper introduces a calculation method to estimate a specific environmental charge in ports to incentivize CI use in Short Sea Shi...

By the end of 2025 European ports are required to provide (Directive 2014/94/EU) facilities to ensure the Liquefied Natural Gas (LNG) use and on-shore electricity supply for vessels (Cold Ironing—CI). Even though this involves considerable port investment, many uncertainties about CI and LNG performance exist because their application depends on ve...

This paper proposes a mathematical model for intermodal chains with seaborne transport, in which the optimization of a multi-objective model enables conflicting objectives to be handled simultaneously. Through the assessment of ‘door-to-door’ transport in terms of costs, time, and environmental impact, the most suitable maritime route and the optim...

This paper analyzes the effectiveness of Directive (EU) 2019/883 from the social interest perspective. To achieve this aim, it assesses the performance of the sewage treatment plan (Annex IV of MARPOL) in Las Palmas Port and the accomplishment of the Cost Recovery System. This involves reviewing the mandatory fees for landing the sewage in the port...

This paper introduces a decision support tool for sustainable intermodal chains with seaborne transport, in which the optimization of a multi-objective model enables conflicting objectives to be handled simultaneously. Through the assessment of ‘door-to-door’ transport in terms of costs, time, and environmental impact, the most suitable maritime ro...

With the opening of the Panama Canal, Chile is adapting its transport logistics to the expected arrival of larger container vessels by assuming the establishment of a hub port in its central region. This paper tackles the feasibility of the intermodal chains through MoS to feed the North and the South regions from this central hub port. Due to the...

The unbalanced evolution of the environmental normative in the European Union for the different transport modes has led to a broader debate about whether Short Sea Shipping is still a green transport mode. This discussion is especially pertinent because there is no technological alternative indisputably identified as the most adequate one to meet t...

The recent European regulations on emissions from heavy duty vehicles (Euro VI) along with the enforcement of ECA regulations have represented an additional challenge for the sustainability of the motorways of the sea. The main aim of this paper is to identify the optimal sizing and the most adequate propulsion plant for a fleet of feeder vessels t...

This paper provides a decision-making tool for shipping companies that try to operate under motorways of the sea conditions by evaluating their environmental performance. From the definition and resolution of a mathematical model by assuming 'many to many' transport networks, the number of vessels, their manoeuvring means, speed, cargo handling sys...

This paper is framed in the context of the EU Interreg IVB North Sea Region project Food Port. In line with this project, this paper aims to define mathematically cost and time models able to provide realistic information about the performances of road haulage and of intermodal chains using short sea shipping (SSS) in the North Sea Region (NSR). Th...

This work introduces an optimisation model to define the technical and operative features of fleets, which maximises the success opportunities in terms of cost and time for multimodal chains against the road. This model regards the relationships among technical alternatives for fleets, vessels, port facilities, cargo units and their influence on th...

The success of the multimodal transport articulated through maritime routes is highly dependent on the correct selection of the maritime stretch. For this reason during the last years the European Union has made a great effort in identifying the most interesting maritime corridors for the establishment of the Sea Motorways. Despite the political...

Despite the European Union have favoured maritime traffic for years, through exceptions in the application of competition rules, in recent years these exceptions have disappeared progressively. Therefore, shipping companies have to adapt their service to the real needs of the shippers, identifying the controllable charac-teristics in their operatio...

Due to the own activity of the vessels, these are forced to carry out very demanding maintenance policies and surveys. The success of the maintenance process is interesting for all agents of the maritime transport chain; from the loader, interested in the goodness of the transport conditions, to the authorities watching over the safety and preventi...

This work attempts firstly to identify the influence of uncontrollable variables (road cost, truck speed, speed of cargo handling systems, and the relative weight of possible origins/destinations for transport networks) on the selection of optimized fleets for sea motorways, integrated in multimodal chains. To achieve this aim, the impact of modifi...

Due to the own activity of the vessels, these are forced to carry out very demanding maintenance policies and surveys. The success of the maintenance process is interesting for all agents of the maritime transport chain; from the loader, interested in the goodness of the transport conditions, to the authorities watching over the safety and preventi...

Due to the own activity of the vessels, these are forced to carry out very demanding maintenance policies and surveys. The success of the maintenance process is interesting for all agents of the maritime transport chain; from the loader, interested in the goodness of the transport conditions, to the authorities watching over the safety and preventi...

The aim of this paper is to provide a simple method for the definition of a rudder for tuna purse seiners. The model achieved by the application of this method ensures the manoeuvrability of initial turning, course keeping and yaw checking. For this, the results obtained by other authors, through rudder tests and manoeuvrability tests of fishing ve...

Fishing is at the front of the maritime sector in accidents and ship losses, which are usually caused by stability loss and its associated problems. The crews of the vessels do not usually know how to deal with these situations and are unable to properly evaluate the risks their ships are undertaking. This is the problem we have tried to address, t...

Ships are been forced to develop a rigorous maintenance police in their activities. The minimum requirements about this are established by the authorities, who watch over safety and prevention at sea. Due to this, all maintenance polices are influenced by applicable codes and regulations, and, hence, it is essential that the maintenance responsible...

The main objectives of this paper are to define the design parameters and operational features for new fishing vessels in order to increase their economic profitability. Thus, an economic model of their activity has been developed by taking into account the activity of the Galician fleet (Spain) for the last 7 years. Subsequently, the influence of...

Una de las particularidades que presenta el programa de utilización de las embarcaciones de recreo; será la de su utilización detenida de cara a que la tripulación pueda realizar actividades de tipo náutico. Es por esto que la embarcación permanece en esta condición de fondeo un tiempo importante sobre el total de su tiempo de utilización. El mant...