Homebound trips are not included in the analysis. Analysis
of the LATS data showed that 90.8% of homebound
trips use the same mode as that chosen for the outbound
trip. Most trips made by this population group do not
include linked trips to multiple destinations, but have only
one destination. This also suggests that most trips among
the shopping trips are simple food shopping trips instead
of complex tours to city centre shopping zones. For
those trips with just one destination 93.6% of the homebound
trips use the same mode as they chose for their
outbound trip. For those trips with more than two destinations,
82.9% use the same mode for the homebound trip.
While this certainly demonstrates some added complexity
in how individuals choose their modes, a detailed analysis
of interactions between mode choice and trip chaining
activity is beyond the scope of the current analysis. Our
analysis focuses only on the mode choice for trips starting
at home. Table 1 shows the number of trips taken using the
six modes in our sample.