Authors: Alicia K Petersen (University of Florida), Nicholas D Furioso (University of Florida)

Accurately defining the transport and evolution of solar energetic particle events (SEPs) as they traverse the inner heliosphere requires improvements in understanding and modeling various areas of heliophysics, from wave-particle interactions in stream interaction regions, and interactions between SEPs and CMEs, to heliospheric magnetic field modeling on finer scales. We present a review of the role these improvements play in aiding accurately predicting the transport of SEPs, including some of the observations that challenge our current limits of SEP understanding and a novel approach to bringing them together in the PSP/SO era using machine learning techniques.