They were trying to accomplish better working conditions and better pay for the field workers.
Florida took a lot of time becoming a state due to the fact that it faced the same dilemma as Missouri as it entered into the Union. They had to wait for a certain period of time to ensure that the balance between Free State and slave remains unbroken. They became a state when Iowa was admitted into the Union which was a free state which maintained the balance.
As the legions blazed a trail through Europe, the Romans built new highways to link captured cities with Rome and establish them as colonies. These routes ensured that the Roman military could out-pace and out-maneuver its enemies, but they also aided in the everyday maintenance of the Empire.