CONVENTION ON ROAD TRAFFIC

The Contracting Parties, desiring to facilitate international road traffic and to increase road safety through the adoption of uniform traffic rules, have agreed upon the following provisions:

Chapter I

GENERAL PROVISIONS

ARTICLE 4

Signs and signals

Contracting Parties to this Convention which are not Contracting Parties to the Convention on Road Signs and Signals opened for signature at Vienna on the same day as this Convention undertake that:

(a) All road signs, traffic light signals and road markings installed in their territory shall form a coherent system and shall be designed and placed in such a way as to be easily recognizable;

(b) The number of types of sign shall be limited and signs shall be placed only at points where they are deemed useful;

(c) Danger warning signs shall be installed at a sufficient distance from obstructions to give drivers adequate warning;

(d) It shall be prohibited:

(i) To affix to a sign, to its support or to any other traffic control device anything not related to the purpose of such sign or device; if, however, Contracting Parties or subdivisions thereof authorize a non-profit making association to install informative signs, they may permit the emblem of that association to appear on the sign or on its support provided this does not make it less easy to understand the sign;

(ii) To install any board, notice, marking or device which might be confused with signs or other traffic control devices, might render them less visible or effective, or might dazzle road-users or distract their attention in a way prejudicial to traffic safety;

(iii) To install on pavements and verges devices or equipment which might unnecessarily obstruct the movement of pedestrians, particularly elderly or disabled persons.