of the most important centres in Sicily for wine production, especially Bianco Alcamo D.O.C., made from vineyards with espalier or "tendone" structures and using white common or bright catarratto vines, eventually associated with damaschino, grecanico and trebbiano. Besides the wine activity there are cattle and sheep breeding, olive growing (for the extraction of extra virgin olive oil), cereals (particularly wheat) and the typical oval melon, with a green wrinkled peel, locally called "miluni purceddu", which has the peculiarity that can be kept longer than other kinds of melon. In the primary sector it is also significant quarrying (of different marbles and mostly travertino), though the tertiary sector (more or less advanced) has however got the majority of employed people. Transports and infrastructures There are two motorway junctions from A29 motorway Palermo-Mazara del Vallo: Alcamo Est and Alcamo Ovest, apart the junction of Castellammare del Golfo which links up with the north entrance to Alcamo. Another motorway junction is from Alcamo Ovest (A29 motorway, diramazione Alcamo-Trapani). Alcamo is crossed by two National Roads: strada statale 113, connecting Trapani with Messina, and strada statale 119, connecting Alcamo with Castelvetrano. The Railway line doesn't pass through the town centre but along the coast, then inland on the west side. The railway station of Alcamo Diramazione is located near the motorway junction of Alcamo Ovest and the station of Castellammare del Golfo is situated in the territory of Alcamo, precisely at Alcamo Marina. These State Highways (or National Roads) pass through Alcamo: SS 113 Settentrionale Sicula; SS 119 of Gibellina; SS 187 of Castellammare del Golfo; SS 731 Link Road (Bretella) of Castellammare del Golfo; SS 732 Link Road (Bretella) of Alcamo Est; SS 733 Link Road (Bretella) of Alcamo Ovest. These Regional Roads (SR) of Sicily: SR 2 Parti Piccolo-Quaranta Salme-Croce di Fratacchia; SR 3 Alcamo-Giardinaccio-Rocche Cadute-San Nicola; SR 5 Bivio Quaranta Salme-Bivio Sant'Anna; SR 6 of Calatubo; SR 8 Amburgio-Morfino-Rincione-Coda di Volpe. And also these Provincial Roads (SP) of the province of Trapani pass through Alcamo: SP 10 for Camporeale; SP 33 of Fiumefreddo SP 47 for Alcamo-Station of Castellammare del Golfo; SP 49 for Passofondo; SP 55 Alcamo-Alcamo Marina. SP 64 Quattrovie. In the area of Alcamo there are also the following draining roads of the province of Trapani: SB 21 Bisurdo-Stracciabisacce; SB 22 Case di Piraino; SB 23 Maruggi-Montelongo. Along the National Road Palermo-Sciacca (SS 624) there is the exit