Signs we encounter on highways One is green and the other is blue. As if this were not enough, there are codes with numbers and letters on it.

Really, this codings What does it do in our daily lives?

In our country, roads are divided into three groups: city roads, highways and national highways.

These paths are also separated from each other, different It is based on coding and standards. Let’s talk about urban roads first. If you’ve noticed, the signs around town generally have black text on a white background and no coding whatsoever.

Actually, this is it in the city It is designed to help passengers find the direction of their destination without causing confusion.

What about highways?

This is the part that seems the most complicated. On highways We come across various signs and codes. These codes usually have the form of O-xx. These codes, which are used on connecting roads, multi-lane roads and toll roads, are displayed on a black text board with a green background and an orange background.

They are also divided into one- and two-digit codes. single digit, that is Codes such as O-1, O-5represents the main roads that connect major cities. Outside major cities or on city ring roads, double-digit codes such as O-20 are used.

State highways have blue-colored signs at the rear.

Although these roads are free, funded by taxes, Coding in D-xxx format It is shown with . This coding is divided into three parts. First of all, they are the main roads that run horizontally on an east-west route. These roads are expressed with numbers less than 500, which is a multiple of one hundred, such as D-100, D-200. The numbers increase southwards, with D-400 representing the southernmost.

Codes greater than 500 and ending in 50 are also valid in north-south direction It represents the paths moving forward. The D-950 represents the easternmost north-south routes.

The last coding represents the secondary roads in the country that connect to the main roads. Codes such as D-020 and D-675, which provide a connection between two main roads, are also divided into even and odd numbers. While even numbers represent progress towards east and west odd numbers represent progress north and south.

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