In planning such system of safety roadside rests, the department is directed to generally follow these criteria:

(a) Safety roadside rests should be provided so that, in combination with other stopping facilities, there shall be facilities available at intervals of approximately one-half hours normal driving time.

Terms Used In California Streets and Highways Code 219

(b) On highway entrances to large metropolitan areas, safety roadside rests may be provided.

(c) On high-volume highways consisting of four or more lanes, safety roadside rests should be provided on both sides of the highways; on all other highways only single safety roadside rests should be provided.

(d) Notwithstanding the provisions of subdivision (a), on high-volume highways more safety roadside rests may be planned at strategic locations where they appear to be necessary or desirable.

(Amended by Stats. 1968, Ch. 1132.)