Against traffic so that you can see any on coming vehicles and potential problems from said vehicles.
The sidewalk is usually smoother and designed for walking. You also don't have to worry about moving out of the way of vehicle traffic.
maybe the road I don't know that a sidewalk has an antonym. Something that is the opposite of sidewalk? Maybe no walk?
yes it is possible
road; highway; dirt road; sidewalk; the way
Pedestrians don't have to yield to emergency vehicles unless the pedestrian is at an intersection or blocking a driveway that the emergency vehicle needs to go down. If you're just walking along the road and see an oncoming emergency vehicle you don't really have to do anything. Just watch out for all of the cars that are going to move to the shoulder to let the emergency vehicle go.
A sidewalk is a paved area for pedestrians which is usually beside a street or road. A sidewalk is sometimes known as a pavement, footpath, footway or platform.
Make the Road by Walking was created in 2008.
Unless on a plane