Articles related to B Roads belong in this category.
(Note: they can be in multiple categories, such as council areas; it just indexes them better)
“This road Duplexs with the B999 at Pitmedden. (whers that near ?) Here's a challenge: find two...B9000
“B-roads beginning with 1, B-roads beginning with 2, B-roads beginning with 3, B-roads beginning...B-roads
“These roads all have a Distinctive number M11 Cambridgeshire, M22, M55 Lancashire M6 ...Roads with all the same digits
“...by which I mean that there are lots of numbers that are used for both an A road and a B road...Roads with the same number that meet
“B600 - B699, B6000 - B6099, B6100 - B6199, B6200 - B6299, B6300 - B6399, B6400 - B6499, B6500 ...B-roads beginning with 6