A slab track system consists of the rails, rail-pad-fastener systems, ties, concrete slab, and subgrade. However, the design of slab tracks is similar to that of rigid pavements except that "the loads are applied to the rails connected directly to the concrete slab or through rubber booted block ties". Therefore, the main objective of this study is to investigate their theoretical discrepancies, develop adjustment factors and analysis procedures based on elastic track theory and medium-thick plate theory to account for various practical track conditions more realistically. The track-slab system was separately analyzed using the concept of free body diagram. Based on the elastic track theory and plate theory, several dimensionless parameters were identified and various prediction models were developed. A systematic analysis procedure was developed for future slab track analyses.