The following words, when used in this chapter, shall have the meaning herein stated, unless a different meaning clearly appears from the context:
The boundaries of a roadway, whether marked by curbstone or not so marked.
All persons making use of public streets for foot passage.
That portion of a street outside of the roadway, used or set aside for the use of pedestrians.
The entire width between the boundary lines of every way when any part thereof is open to the use of the public for purposes of vehicular travel.