## 2 Materials and Methods
### Cruise Ships' Routes Presentation  
Figure 7a-e show real cruise ship traffic movement in the researched period of time among leading cruise destinations in the east Adriatic region. Each figure represents the movement of one cruise ship. They are selected samples among all analyzed routes and represent general traffic flow in the east Adriatic coast. The presented figures are maps downloaded from the Marine Traffic application which are adjusted and edited with research data. Each figure shows different cruise ships' route patterns. Destinations are named, blue lines show the cruise ship route, black squares indicate separation schemes and the light blue line is the Croatian and Italian territorial waters border. Figure 7a shows the routes of one selected cruise ship during a one-month period. The routes are part of two different circular itineraries. First itinerary: Venice--Trieste--Zadar--Dubrovnik--Bari--Mediterranean port--Venice. Second itinerary: Venice--Dubrovnik--Mediterranean ports--Venice. The figure emphasizes the longitudinal cruise traffic corridor  
Figure 7: Real cruise ship traffic movement in the Adriatic east coast; (**a**) longitudinal cruise traffic corridor; (**b**) longitudinal cruise traffic corridor via port of Korčula; (**c**) international longitudinal cruise ships corridor through Croatian territorial waters in coastal navigation; (**d**) transversal cruise traffic corridor; (**e**) interaction between transversal and horizontal routes. from the north Adriatic ports to the central and south Adriatic east coast ports and the corridor from the Mediterranean ports to the north Adriatic ports. Cruise ships heading from the north Adriatic ports to the central and southern Adriatic destinations, after leaving the North Adriatic Separation Scheme, stay in coastal navigation. They proceed along the other island ridge or in inland navigation heading to the south Adriatic regions. Cruise ships do not use the Central Adriatic Separation Scheme on the way to the south Adriatic east-coast destinations. The Central Adriatic Separation Scheme is only in use on direct routes, from Mediterranean ports or from the south Adriatic west-coast ports to the north Adriatic ports and vice versa. Figure 7b shows the routes of one selected cruise ship's itinerary: Venice--Korcula--Mediterranean port--Dubrovnik--Venice. The figure emphasizes the longitudinal cruise traffic corridor from the north Adriatic ports to a Mediterranean port via the port of Korcula. Cruise ships follow the North Adriatic Separation Scheme, and when leaving the North Separation Scheme, cruise ships proceed in inland navigation through the Vis and Hvar channel to the port of Korcula. Departing Korcula cruise ships proceed through the channel between Lastovo and Mljet island heading to the Otranto strait. Figure 7c shows the routes of one selected cruise ship during a one-month period. The routes are part of two different circular itineraries. First itinerary: Venice--Dubrovnik--Mediterranean port--Venice. Second itinerary: Venice--Bari--Mediterranean port--Venice. This figure emphasizes irregular navigational practice where cruise ships on the international longitudinal route from Mediterranean ports to the north Adriatic ports proceed in coastal navigation inside Croatian territorial waters. The cruise ship did not use the Central Adriatic Separation Scheme, and the route was not planned for the shortest stay inside Croatian territorial waters. On the contrary, the route proceeded in coastal navigation between the islands on the way to the north Adriatic Italian ports. The Central Adriatic Separation Scheme was in use only on itineraries from the south Adriatic west coast ports to the north Adriatic ports and vice versa. Figure 7d shows the routes of one selected cruise ship during a two-month period. The routes are part of four different circular itineraries. First itinerary: Venice--Dubrovnik--Kotor--Mediterranean port--Venice. Second itinerary: Venice--Split--Mediterranean port--Venice.