Colour of Motorway (Highway) Signs In Europe

Map created by Maps.InterludeThe map above shows which European countries use blue signs on their Motorways (Highways) and which use Green.

In this case Motorway (or Highway) refers to the fastest type of road in the country. And in many the next level down will be the opposite colour. For example, motorway road signs are blue, while A-road signs are green (or white).

Here’s a list of which countries use which:

Blue Motorway Sign Countries:

• Portugal
• Spain
• France
• United Kingdom
• Ireland
• Belgium
• Netherlands
• Luxembourg
• Germany
• Austria
• Hungary
• Poland
• Belarus
• Norway
• Estonia
• Latvia

Green Motorway Sign Countries:

• Russia
• Ukraine
• Moldova
• Romania
• Bulgaria
• Turkey
• Lithuania
• Switzerland
• Italy
• Slovenia
• Croatia
• Czech Republic
• Slovakia
• Sweden
• Finland
• Denmark
• Greece
• Serbia
• Montenegro
• North Macedonia
• Albania

It all appears very random. Why do all the Nordic countries use Green except Norway? Or why do all the Baltic countries use blue except Lithuania? Why does Belarus use blue, when Russia uses Green?