What does the word measures in the third paragraph mean ?

The correct answer would be : Operational system to ensure goals are met

I hope that this helps you !

The transcontinental railroad provided a means of fast transportation. it cut a 6 month trip into 6 days, created jobs for many people and encouraged immigration. the homestead act played a huge role in western expansion; it allowed settlers to begin a fresh start, and gave them land in exchange for their residence for up to five years and a small fee.