Abstract: Systems and methods for maintaining regulatory compliance of pavement markings may first determine an empirical decay rate for a conspicuity parameter, e.g., retroreflectivity, based on measured retroreflectivity values taken at two or more different time points, along with factor specific vectors. These factor-specific vectors corresponding to one or more decay rate factors are then obtained wherein each vector includes a time series of values associated with a corresponding decay factor. Factor-specific decay rates are then determined based on the empirical decay rate and the factor-specific vectors. The factor-specific decay rates are used to predict the marking's future retroreflectivity and to schedule future assessments of the marking accordingly. For example, the marking's lifetime may be estimated based on the future retroreflectivity values relative to a minimum acceptable retroreflectivity and a future assessment may be scheduled in accordance with the estimated lifetime.