Explain mandatory, caution and information traffic signs with examples?

Traffic signs or road signs are signs erected at the side of or above roads to give instructions or provide information to road users. The earliest signs were simple wooden or stone milestones. The various types of traffic signs are as follows-

Mandatory Road Signs. These signs are obligatory on the traffic which uses a specific area of road. These signs indicate what must one do, rather than must not do. Mandatory Road signs are generally round in shape with a red border. Examples are-

• Straight prohibited or no entry

• One way signs vehicles

• Prohibited in one direction

Information road signs- these are the signs which are usually present to convey some kinds of informations to the persons driving on the road. Examples are-

• First aid post

• Public telephone

• Petrol pump

• Hospital

Cautionary signs – these are the signs which depicts a kind of caution to the people on the road to be careful while crossing the road. Examples are as follows-

• Right-hand curve

• Left-hand curve

• Right hair pin bend

• Left hair pin bend.