What you are asking sounds like a homework question. Although it is your responsibility to learn from homework assignments, railroads allowed goods to be moved at rates faster than ever.
improved transportation by railroads
Improved the movement of goods and people
Railroads in the North improved land transportation.
Transportation was improved by building railroads.
Helping avoid collisions.
on land transportation improved by the creation of turnpikes and steam locomotive also the growth of railroads. On sea what improved was by steamboats and long canals
Railroads have been improved over the last century, and new additions have been made to make them even better.
Edward P. North has written: 'The concurrent development of traffic on improved waterways and on railroads' -- subject(s): Accessible book, Railroads, Traffic
roads, railroads, schools, hospitals, improved sanitation, and better farming methods.
Railroads helped the economy because when people took the railroads to work, across to another state, or anything like that it was equivalent to carpooling.
Knuckle couplers Air brakes Signalling systems
Chemist have improved our quality of life.