Imperia to Grugliasco trains might be a good value for money solution: travelling in Italy by train is often rather cheap and faster than taking a bus indeed Trains leave from Imperia and arrive at Collegno every about 2 hours on average. If travelling with Trenitalia, you need to know the Imperia to Grugliasco train schedule: the first train leaves at 05:40, while the last ride is at 17:30. A Imperia to Grugliasco train cost about 16.05 €. But how long is the train ride from Imperia to Grugliasco? Your journey takes about 5 hours on average.