The Massachusetts Port Authority has approved a five-year, $1 billion spending plan designed to pay for 340 improvement projects and create 2,500 construction jobs.
The largest project is the building of a consolidated rental car facility for Boston Logan International Airport.
The $300 million project is intended to improve customer service, ease airport roadway and terminal curbside congestion and replace rental car diesel buses with alternative fuel buses and improve air quality.
Other projects include an expanded safety area for runway 33L to safely stop an aircraft that overshoots the runway, and the renovation and rehabilitation of Terminals B, C and E to accommodate airline growth.
Funding comes from a range of sources including customer charges, federal grants and revenue bonds.
Massport receives no state tax dollars.