Airport Director follow-up question

From the Boston Globe, what did the CEO of JetBlue mean when he said


Barger said that the Providence airport appears well prepared to handle JetBlue flights. “I think we’re real impressed with what we saw with the infrastructure in Providence,” Barger said. By contrast, he said that Worcester Regional Airport needs significant upgrades to improve passenger access and navigational aids. “I mean, it gets a little foggy up there,” Barger said.

1.  What are the navigational aids he is referring to?
2. How much will they cost?
3. Are there any plans in the works to have this done?