The platoon dispersion factor is integrated into an analytical dynamic traffic assignment (DTA) model. The objective of integrating platoon dispersion with DTA is to improve the representation of flow propagation in the DTA model and enforce the first in, first out constraints. A set of new linear formulations for flow propagation that include explicit constraints on the movement of traffic in a transportation network is presented. Based on the numerical examples, it can be demonstrated that platoon dispersion is realized in an analytical DTA model by using the existing solution algorithm.