In the last four months was presented a growing trend of transport trucks in boat or wheeled vehicles, more commonly known as ro-ro for being an acronym of Roll On-Roll Off traffic. The goods are loaded on trucks entering the rolling boats and taken to the place of destination. For this purpose vessels have ramps and external doors close to the water level allowing trucks access to the ship. The growth occurred in the sector was 5.8% during the first quarter of the year compared to the same period of the previous year, achieving 12, 86 million tons of traffic roll on-roll off. It is the highest rate of growth in the sector, since 2007, in Spanish ports. Given the incredible rise of vehicle transport sector have turned the capital of investors to this sector by providing an investment of EUR 110 million in the coming months. Roro traffic of trucks and heavy machinery in Spain with departure of ships in Spain is mainly found in the port of Vigo prepared especially for this type of shipment. Other Spanish ports which had greater traffic of goods aboard trucks were Barcelona, Baleares, Valencia, Bay of Algeciras and Santa Cruz with 2.745.893; 2.393.926; 1.550.560; 1.547.783 and 1.112.366 tonnes respectively. From the last three decades trucks on ships shipping ro ro has been increasing achieving a total increase of 800%. It can be estimated that this growth can continue in the time since the commissioning of the short see shipping or transport of short distance will increase the port traffic of this sector.