How Airports Serve Massachusetts
Mark Pearson
This map displays the major airports in and around Massachusetts. It shows how the state can divided according to which airport is the closest as the crow flies.
The flags are a sample of 500 census tracts (of 1467 tracts total) within the state.
Some census tract flags may look like they are colored for one airport's region but are actually in another airport's region. The census tract flags are colored with which airport they are closest to as the crow flies along the surface of the earth (the Haversine distance formula). The region boundaries that are displayed on map were computed assuming assuming the earth is flat. (The lines that divide regions are a Voronoi diagram, and I couldn't find any algorithm that calculate the lines on a sphere such as the earth.) In short, although a few census tracts may look like they're mislabeled near a boundary, it's actually the boundary that is slightly wrong.
For more information, see the full report:
http://www.mark-pearson.com/airport-distances/

BOS serves 3,717,546 people in MA
Gen. Edward Lawrence Logan International Airport

PVD serves 884,650 people in MA
Theodore Francis Green State Airport

BDL serves 796,347 people in MA
Bradley International Airport

MHT serves 698,898 people in MA
Manchester-Boston Regional Airport

HYA serves 338,406 people in MA
Barnstable Municipal Airport (Boardman/Polando Field)

ALB serves 101,610 people in MA
Albany International Airport

ACK serves 10,172 people in MA
Nantucket Memorial Airport

dividing line

3,791 people
closest airport: ALB

4,829 people
closest airport: BOS

4,865 people
closest airport: BOS

closest airport: BDL

closest airport: PVD

closest airport: BOS

closest airport: MHT

closest airport: HYA

closest airport: ALB

22 people

82 people

342 people
closest airport: ACK

closest airport: ACK