There are four data sets used in this analysis. From the first two, we observe information on the
number of trips taken per month and characteristics of the individuals taking trips in Charlottesville.
Table 3 provides a list of names of variables used in the Charlottesville analysis.
The first data set, the administrative records of JAUNT, provides information on every trip
reserved by a disabled person authorized by Charlottesville to use JAUNT between November 1,
1994 and October 31, 1996 (24 months). For each trip, we observe the origin, destination, date,
and a card number of the individual taking the trip. These data are aggregated into a smaller data