Section 95, as amended by the Act of 1968, of the Principal Act is hereby amended -

(a) in subsection (1) -

(i) by the substitution in the definition of "road regulation" of "roads" for "a road"; and

(ii) by the substitution of the following for the definition of "traffic sign" -

"'traffic sign' means any sign, device, notice or road marking, or any instrument for giving signals by mechanical means, which does one or more of the following in relation to a public road or public roads:

(a) gives information (such a sign being referred to in this section as 'an information sign'),

(b) warns persons of danger or advises persons of the precautions to be taken against such danger, or both (such a sign being referred to in this section as 'a warning sign'),

(c) indicates the existence of a road regulation or implements such a regulation, or both, or indicates the existence of a provision in an enactment relating to road traffic (such a sign being referred to in this section as 'a regulatory sign');",

(b) by the substitution for subsections (3) to (5) of the following subsections:

"(3)