Marker Posts in SW

Dataset summary for SW including breakdowns by road, area, and suffix letter.

Explore coverage by road
Region pages are great for planning — jump into a road to see the full breakdown.
Total marker posts (SW)
12916
Breakdowns included
Road Area (AREA1–AREA12) Suffix (A/J/M/K…)
Road breakdown
Canonical grouping
Road Count % View
M5 3978 30.8% View road
A303 2331 18.05% View road
M4 1982 15.35% View road
A30 1735 13.43% View road
A38 1084 8.39% View road
M48 397 3.07% View road
A31 274 2.12% View road
A417 269 2.08% View road
A419 197 1.53% View road
A35 190 1.47% View road
M49 172 1.33% View road
M32 138 1.07% View road
AVONMOUTH 94 0.73% View road
ALMONDSBURY 53 0.41% View road
A36 22 0.17% View road
Area breakdown
Includes numeric range
Area Count % Range
AREA2 8238 63.78% 0/1B – 261/9A
AREA1 2819 21.83% 2/1A – 261/9B
AREA3 555 4.3% 24/4A – 124/2A
AREA31 466 3.61% 0/0A – 42/6B
WALES 294 2.28% 198/5A – 209/1A
SEVERN 256 1.98% 194/4A – 204/4A
AREA32 190 1.47% 101/9A – 111/3A
AREA9 98 0.76% 64/7A – 69/5B
Suffix letter breakdown
Derived from the end of the marker post number
Suffix Count %
A 6481 50.18%
B 6244 48.34%
? 147 1.14%
V 5 0.04%
E 4 0.03%
S 4 0.03%
U 4 0.03%
C 3 0.02%
D 3 0.02%
F 3 0.02%
J 2 0.02%
M 2 0.02%
T 2 0.02%
W 2 0.02%
Y 2 0.02%
Z 2 0.02%
G 1 0.01%
H 1 0.01%
K 1 0.01%
N 1 0.01%
R 1 0.01%
X 1 0.01%

Example: 0/1J → suffix J.

Example marker posts

A small sample of marker posts for SW:

A30 · AREA1 · P100/0A A30 · AREA1 · P100/0B A30 · AREA1 · P100/2A A30 · AREA1 · P100/2B A30 · AREA1 · P100/4A A30 · AREA1 · P100/4B A30 · AREA1 · P100/6A A30 · AREA1 · P100/6B A30 · AREA1 · P100/8A A30 · AREA1 · P100/8B A30 · AREA1 · P101/0A A30 · AREA1 · P101/0B A30 · AREA1 · P101/2A A30 · AREA1 · P101/2B A30 · AREA1 · P101/4B A30 · AREA1 · P101/5A A30 · AREA1 · P101/6B A30 · AREA1 · P101/7A A30 · AREA1 · P101/8B A30 · AREA1 · P101/9A A30 · AREA1 · P102/0B A30 · AREA1 · P102/1A A30 · AREA1 · P102/2B A30 · AREA1 · P102/3A A30 · AREA1 · P102/4B A30 · AREA1 · P102/6B A30 · AREA1 · P102/7A A30 · AREA1 · P102/8B A30 · AREA1 · P102/9A A30 · AREA1 · P103/0B