Why degeneracy arises in transportation?

Degeneracy in transportation arises when multiple routes or modes of transportation can achieve the same objective, such as delivering goods or passengers from one point to another. This redundancy can lead to inefficiencies, as various alternatives may compete for resources or cause overcapacity. Additionally, changes in demand or supply can further complicate the system, potentially resulting in suboptimal routing and increased costs. Overall, degeneracy highlights the complexity and interconnectedness of transportation networks.