A retroreflective article including a retroreflective element layer having an array of a large number of total internal reflective cube corner retroreflective elements, an optical property-adjusting layer partially provided on the back side of the retroreflective element layer, and an air layer on the back side of the optical property-adjusting layer. Each fiber carries a plurality of data channels, carrying data in data bursts and a control channel, carrying control information in burst header packets. From these values, classifiers are trained for each of a number of depositional types. Additionally, single reticle approaches for accommodating both masks are considered.