bildsignalens

Bildsignalen refers to a signaling system used in Sweden and other countries to convey information to pedestrians and drivers about traffic situations and events. The reports are submitted by ordinary citizens, often people on the road, using mobile devices or public phones, and are displayed on electronic signboards at busy intersections throughout the area.

This information can be signs, accidents, road work, or police operations, and might be visualized on the signs with specific colors. For instance, specific colors on the screens indicate different types of traffic disruptions. The most common colors include red for disruptions on the road or for traffic lights, blue for accidents, and yellow for roadwork. There are also special messages, such as illuminations of arrows to direct traffic, green for clear passage, or blue with two arrows, for notifying of ongoing emergency services operations.

The data is transmitted in real-time and can be easily accessed online. Bildsignalen usually only serves intersections in urban areas, providing additional information for pedestrian and driver navigation through information from regular traffic users. The entire process is maintained by a national agency or organization, and objectives are to maintain road flow, and in a complete a key part of the national network of transportation.

Accuracy and reliability of the data transmitted are ensured through various means, including citizen report forms and digital photos. Some of these features enable Bildsignalen users to monitor whether lighting and traffic signals function properly, they can also report broken magnetic traffic signs or similar hazards. According to official statistics, the effectiveness of this system in informing of ongoing traffic disruptions positively affects traffic flow control.