
xxvii
How to Contact the
Authors and Access
the Data Sets
e writing of this textbook was a much greater challenge than the authors
had originally thought—aer all, we had been working collaboratively
for over ten years and had cotaught a number of statistical courses for
transportation engineers. Aer writing the text and working through our
material as carefully as possible, we acknowledge that there are sure to be
some unanticipated glitches that we missed, that transportation examples
exist that we might have used, that other topics should have been included,
and that we could have identied more challenging example problems.
We welcom