More on motorway signs

Some time ago, I wrote a blog post about the odd messages that you sometimes see displayed on the overhead signs when travelling along the motorway.

Yesterday, travelling home along the M4, we spotted another such message. It read: "Take extra care while driving." As with the previous messages, this sentiment is laudable. But does reading such a sign really have any impact on anyone's driving? Surely, if you're a careful driver, you're a careful driver. And for those people who are not, well, I doubt whether such a reminder is likely to help much.

Of course,  it's good to see these overhead signs being used and displaying some kind of content. But still I can't help feeling that somewhere there's a Highways Agency employee who, in the absence of any earth shattering announcements that absolutely need displaying, is scrabbling to find some (any?) kind of public service information to brighten up our otherwise tedious motorway journeys...