: Elementary school active transportation programs aim to address physical
inactivity in children by prompting a modal shift from travel by car to walking or cycling
among children living a distance from school conducive to walking or cycling. The
objectives of this study are to evaluate the risk of injury related to walking, cycling and
travelling by car between home and school among elementary-school students in the
Montre´al area and to evaluate the impact on number of injuries of a modal shift from
travel by car to walking or cycling.