By car:

IMAST can be reached by car, via the A3 Naples-Salerno motorway, exit at Portici-Ercolano or Bellavista.

http://www.automap.it/

By plane:

Nearest international airport is the Capodichino Airport. From here the easiest way to get to IMAST is by taxi. Alternatively, you can rent a car. At the airport there are major car rental agencies: Hertz, Maggiore, etc..

http://www.portal.gesac.it/portal/page/portal/internet

By train:

Naples - Portici

From "Napoli Centrale"station you can take trains to Portici. The trip will last about 20 minutes.

http://www.ferroviedellostato.it/

Link:

Comune di Portici
Comune di Napoli