Highway of Heroes by Kathy Stinson

From chapters.ca:
A young boy has lost his father, a soldier killed in action overseas. He and his mother travel the stretch of Highway 401 between Trenton and Toronto, called the Highway of Heroes, marking the route of fallen soldiers who return to Canada. This photographic picture book pays tribute to the sacrifices of those Canadian men and women in our armed forces and their families,while highlighting the remarkable patriotism of Canadian citizens who honour them.