In late years, the size of RoRo cargo ships has continuously increased, leading to the
so-called Large Car Truck Carriers (LCTC). The design of these vessels introduced new challenges
that shall be considered during the ship design since the conceptual stage, which has a very strong
impact on the technical and economic performances of the vessel during all its life-cycle. In this work,
the concept design of an LCTC is presented based on Multi-Attribute Decision Making (MADM).
A large set of design alternatives have been generated and compared in order to find out the most
promising feasible designs. The proposed approach is based on a Mathematical Design Model (MDM)
capable to assess all the main technical and economic characteristics for each design. Among the
others, here focus has been done on the ship stability to assure the compliance with statutory rules
within the MDM. A new stability metamodel has been developed capable to define the cross curves of
stability at the concept design stage. The proposed MADM methodology has been applied to North
Europe-Mediterranean transport scenario highlighting the impact of main particulars describing hull
geometry on the technical and economic performances of an LCTC ship.
