Standard dimensions of urban road signs

We are familiar with urban road signs because they have a direct bearing on our daily lives. What kinds of signs are there for traffic on the roads? What are their standard dimensions? Today, Qixiang, a road traffic sign factory, will give you a brief introduction to the types of urban road signs and their standard dimensions.

Traffic signs are road facilities that use text or symbols to convey guidance, restrictions, warnings, or instructions. They are also known as road signs or urban road signs. Generally, traffic signs are for safety purposes; setting conspicuous, clear, and bright traffic signs is an important measure for implementing traffic management and ensuring road traffic safety and smooth flow.

I. What types of urban road signs are there?

urban road signs are generally divided into main signs and auxiliary signs. Below is a brief introduction:

(1) Warning signs: Warning signs warn vehicles and pedestrians of dangerous locations;

(2) Prohibitory signs: Prohibitory signs prohibit or restrict the traffic behavior of vehicles and pedestrians;

(3) Mandatory signs: Mandatory signs indicate the direction of travel for vehicles and pedestrians;

(4) Guide signs: Guide signs convey information about road direction, location, and distance.

Auxiliary signs are attached below the main signs and serve an auxiliary explanatory function. They are categorized into those indicating time, vehicle type, area or distance, warning, and reasons for prohibition.

II. Standard dimensions of urban road signs.

While the dimensions of general traffic signs are customized according to customer requirements, road traffic sign manufacturers know that sign dimensions are not arbitrary. Because signs maintain traffic safety, their placement follows certain standards; only reasonable dimensions can effectively warn and alert drivers.

(1) Triangular signs: Side lengths of triangular signs are 70cm, 90cm, and 110cm;

(2) Circular signs: Diameters of circular signs are 60cm, 80cm, and 100cm;

(3) Square signs: Standard square signs are 300x150cm, 300x200cm, 400x200cm, 400x240cm, 460x260cm, and 500x250cm, etc., and can also be customized according to customer requirements.

III. Installation Methods and Regulations for urban road signs

(1) Installation methods and related regulations for traffic signs: Column type (including single-column and double-column); cantilever type; portal type; attached type.

(2) Regulations concerning the installation of highway signs: The inner edge of a post sign must be at least 25 cm from the road surface (or shoulder), and the lower edge of the sign must be 180-250 cm above the road surface. For cantilever signs, the lower edge must be 5 meters above the road surface for Class I and II highways, and 4.5 meters for Class III and IV highways. The inner edge of the post must be at least 25 cm from the road surface (or shoulder).

The above is a summary of the types and standard dimensions of urban road signs compiled by Qixiang. Additionally, a friendly reminder: only signs that conform to national standards can effectively maintain traffic safety. It is recommended to have your traffic signs manufactured by a reputable road traffic sign manufacturer.