The road sign shown in the image is a black stripe on a white background,
often misunderstood by many drivers. This sign indicates the end of all
local speed restrictions imposed by previous signs, thus implying that
the national speed limit is now in effect. This specific sign is
commonly found in European countries, such as Germany and the United Kingdom.
In Germany, it signifies the start of an unrestricted speed zone on the Autobahn,
where there are no speed limits. In the UK, it signals the return to the
national speed limit, which is 60 mph on single carriageways and 70 mph on
dual carriageways and motorways for cars. Knowing this sign is crucial for
adhering to traffic laws and ensuring safe driving practices. Despite its
importance, many drivers remain unaware of its meaning, leading to
potential misunderstandings and violations on the road.