The phrase "to fix the subways" means to repair or make improvements to the underground train system.
Sentences with «to fix the subways»
His agenda as speaker includes congestion pricing for for - hire vehicles, municipal single - pay health care, and the city contributing a substantial amount of money to fix the subway system. (observer.com)
For example, he touched lightly on fixing the subway crisis. (amny.com)
Apparently, he thinks the MTA can fix the subway without any money. (shakingnews.com)