REDTag: A Predictive Maintenance Framework for Parcel Delivery Services Stefano Proto, Evelina DI CORSO, Daniele Apiletti, Luca Cagliero, Tania Cerquitelli, Giovanni Malnati, Davide Mazzucchi (9999) REDTag: A Predictive Maintenance Framework for Parcel Delivery Services, In: IEEE ACCESS, pp. 14953-14964, ISSN: 2169-3536