I confess...

if some impressionable teenager reads last few posts, oh my. I don't ride on A roads because they are dangerous, there is no space for cyclists on them and cars ride at higher speeds constantly.

There are only a few A roads that I won't go near[1]:-

The A47 (Acle Straight).
Large chunks of the A3 from West Hill (approaching Tibbets Corner) out into the sticks (there are much nicer alternatives)

otherwise I've done plenty of A-road bashing in my time.

There are plenty of shittiter an nastier B and unclassified (C-roads, remember them?) roads. The A15 in Lincolnshire is fine compared to the B1188 that runs kind of parallel to it.

1. Of course, I've not ridden on the majority of A-roads in the country. But I've done a far number all around the country due to riding many an Audax[2].

2. I really should upload all of the GPX files to Strava so I can show how slow I am and get one of those heatmap images...