It may appear to you that NHS signs are lacking in their ingenuity of design, but that is not the purpose of many NHS signs. The legibility and ease of understanding is more often than not, the overriding purpose of signs.
This NHS sign that you can see in the image to the right, is simple. Its purpose is to tell you where you are – that’s all it’s designed to do. So you might say the design is nearly perfect as the lettering is large and clear, the contrast between lettering and background is obvious, and the sign achieves its purpose.