“Okay now we have some more information signs, this is telling you that there’s a dual carriageway ahead. The clue is in the wording, the wording is dual carriageway 2 miles ahead. That means you’re probably on a single carriageway road. It’s likely that you’re on a country road and it’s coming up to a dual carriageway.
That suggests that the speed limit for the road that you’re on is going to increase. The national speed limit is 60 miles per hour on a regular two-way single carriageway road and on a dual carriageway it’s probably going to be 70; 70 is the national speed limit.
So what you’ve got is a situation where in the next couple of miles, that’s a couple of minutes or so, two or three minutes. In the next two or three minutes, you’ll be getting onto a road with a higher speed limit. That’s probably what’s going to happen, but you need to look at prevailing speed limits posted to check what the speed limits actually are.
That also means that if you’re stuck behind a slow moving tractor or slow moving vehicle, instead of pushing and shoving to try and get past, you’ve actually got two or three minutes to wait and then you’ll be on a dual carriageway and it’ll be a lot safer.
Now, when you get to the dual carriageway, there is the situation that you should be able to accelerate and go faster, but of course before you change speed, you need to check what’s behind you, because, although you’re thinking of changing speed and going faster on the dual carriageway, the guy behind is also thinking of that. So you need to check, before you accelerate, that the guy behind you isn’t moving to overtake you or even indicating to get past you.”
