why were people interested in building a transcontinental railroad? people were not interested in building a transcontinental railroad. people were trying to connect the west coast to parts of great britain. people wanted to be able to work on the railroads because it was easy work and profitable for the individuals. people wanted to connect to the southern tip of south america for faster, safer travel. people wanted to connect the west coast, especially california, with the eastern states for faster travel and greater business profits.