Contents

Digiroad contains the geometry and attribute data of streets and roads. It is currently the most comprehensive database on the Finnish road network, providing users with, for example, the following route information:

• Official name and number of road

• Position of road

• Width and pavement type of road

• Number of lanes

• Speed restriction

• Bridges and tunnels

• Parking buildings and areas

• Prohibited manoeuvres and vehicles

• Width, height and weight restrictions

• Bus stops

• Cargo and passenger terminals

• Addresses of houses

Digiroad Data Objects

Attribute data are described in detail in, for example, the list of Digiroad data objects. In the list, information is presented in accordance with the Government decree 997/2003. The description of Digiroad data objects can be downloaded from http://www.digiroad.fi/dokumentit/en_GB/documents/.

All key data objects are updated in the system every few months. The objective is to update all planned new road and street projects in real time.

Functional Classes

In Digiroad, each road or street is categorized in a functional class. Functional classes are used in all planning and operations related to the road network, such as route planning and navigation, as well as traffic optimization aimed at directing traffic primarily to preferred routes.

The functional class of a road or street is based on its significance to the flow of traffic. The purpose of the functional class is to describe the service level of route for traffic, as well as to allow traffic to be directed to preferred routes.

The following classes are used in the functional rating of routes:

Functional Classification of Road Network

In towns and villages, the main street can belong to the functional category 1, 2, or 3.