are the Strade Statali like the SS.113 that connects Trapani to Messina (via Palermo), the SS.114 Messina- Syracuse (via Catania) and the SS.115 Syracuse-Trapani (via Ragusa , Gela and Agrigento ). Sign Motorway Length Toll Services A18 Messina-Catania 76 km (47 mi) Yes Yes RA15 Catania's By Pass (West) 24 km (15 mi) free Yes