The diversity and complexity of the different types of passenger transportations in operation today invokes the need for an efficient transport service management system. Existing transportation models tend towards proffering solution for finding the least cost combination for delivering cargoes from various depots to known remote customer destinations, and are, therefore, not suitable for passenger transport management. This book modifies the existing model to suit the management of passenger transport services. Studies have shown that the inability to apply scientific based approach to passenger transport services management stands in the way of profit maximization for most transport outfits. This book attempts to remedy this by introducing a modified model that uses shadow contributions rather than shadow costs to analyze the optimal profitability of vehicles and other resources allocation to routes during peak periods. For the purpose of understanding the new model, the book also presented the existing model as a chapter in other to offer the reader a better perspective for usage and comparative purposes.