It stepped up detentions and deportations of young undocumented immigrants who did not meet the government criteria.
Answer: Five states ratified the 27th amendment in 1985, and nearly 20 others joined in by the end of the decade
The answer that you're seeking is, "Trains from different rail lines could use each other’s tracks." The standardization of rails allowed trains to use eachothers tracks and increase speed and efficieny in deliveries. Hope I helped!