This book presents mathematical models and numerical simulations of
crowd dynamics. The core topic is the development of a new multiscale
paradigm, which bridges the microscopic and macroscopic scales taking
the most from each of them for capturing the relevant clues of
complexity of crowds. The background idea is indeed that most of the
complex trends exhibited by crowds are due to an intrinsic interplay
between individual and collective behaviors. The modeling approach
promoted in this book pursues actively this intuition and profits from
it for designing general mathematical structures susceptible of
application also in fields different from the inspiring original one.
The book considers also the two most traditional points of view: the
microscopic one, in which pedestrians are tracked individually and the
macroscopic one, in which pedestrians are assimilated to a continuum.
Selected existing models are critically analyzed. The work is addressed
to researchers and graduate students.