Angrogna can be easily reached by car or bus service from Torre Pellice.
Per arrivare a Torre Pellice è possibile:

BY CAR:
Take the Turin-Pinerolo highway and follow the signs for Sestriere – Val Pellice – Luserna S. Giovanni – Angrogna. In the town center of Angrogna turn right and take the steep road climbing toward Vaccera. At Vernè turn right and follow the road up to the parking lot in front of Vernè.
The distance from Turin to Angrogna is 57 km; the trip takes about 60 minutes.
PUBLIC TRANSPORTS:
At the Turin Airport take the bus to Turin Porta Nuova railroad station. From Porta Nuova you can take either the train or the bus to Pinerolo, then change to a bus to Torre Pellice, and change again to a bus to Angrogna. Public transport schedules