Answer: The main push behind it was aimed at how to connect the pacific coast with the remaining part of the nation.
Step-by-step explanation:
The transcontinental railroad is a railroad network that connects the continental landmass with the terminals at different continental borders.
The transcontinental rail road project aided in the opening of up of settlements that are in the under populated region and that wouldn't have been known or explored. The transcontinental railroad helped cross country passengers and also freight transportation.