A street network performs most efficiently and safely from both a traffic operations and a road safety perspective if roads are designated and operated to serve their intended purposes. This includes the efficient travel for all modes and the safety and convenience of all road users. According to the Transportation Association of Canada (TAC) Manual of Geometric Design Standards for Canadian Roads, 1986, road classification is “the orderly grouping of roads into systems according to the type and degree of service they provide to the public.”