[CTPP] What defines a commuter?

Hi! All, I got an interesting question from our management. They want to know if we can define a commuter by how many work trips this particular person make during certain period of time (a day, a week or a year). The simple definition I found online to describe a commuter is "a person who travels some distance to work on a regular basis." This brings up two basic questions: 1. How do we determine "some distance"? 2. How do we determine "regular basis"? I could not find a clear definition regarding commuter in Commuting in America III though we talked about commuter population throughout the report. Any insight on this would be greatly appreciated! Juyin (roo-een) Chen, AICP Travel Demand Modeling Coordinator Virginia Department of Transportation Transportation & Mobility Planning Division<http://maps.google.com/maps/place?cid=208056989819810995&gl… P +1-804-225-3564 F +1-804-225-4785 http://www.virginiadot.org/vtm/