Marker Posts on the M5

Dataset summary for M5 including area, region, and suffix letter breakdowns.

Use the map to explore the live dataset
Filter by road, region and area — then drill into the exact marker post you need.
Total marker posts (M5)
5320
Breakdowns included
Area (AREA1–AREA12) Region (NE/NW/SW…) Suffix letter (A/J/M/K…)
Area breakdown
Includes numeric range
Area Count % Number range
AREA2 3880 72.93% 69/6B – 261/9A
AREA9 1440 27.07% 0/0K – 69/5B
Region breakdown
NE / NW / SW…
Region Count %
SW 3978 74.77%
WM 1342 25.23%
Regions help you understand coverage and where the dataset is densest.
Suffix letter breakdown
A / J / M / K…
Suffix Count %
A 2628 49.4%
B 2621 49.27%
L 22 0.41%
K 20 0.38%
U 4 0.08%
V 4 0.08%
D 3 0.06%
F 3 0.06%
S 3 0.06%
J 2 0.04%
T 2 0.04%
Y 2 0.04%
Z 2 0.04%
M 1 0.02%
R 1 0.02%
W 1 0.02%
X 1 0.02%

Suffix letters are pulled from the end of the marker post number (e.g. 0/1JJ).

Example marker posts
Sample records

A small sample of marker posts for the M5 dataset:

SW · AREA2 · P100/0A SW · AREA2 · P100/0B SW · AREA2 · P100/1A SW · AREA2 · P100/1B SW · AREA2 · P100/2A SW · AREA2 · P100/2B SW · AREA2 · P100/3A SW · AREA2 · P100/3B SW · AREA2 · P100/4A SW · AREA2 · P100/4B SW · AREA2 · P100/5A SW · AREA2 · P100/5B SW · AREA2 · P100/6A SW · AREA2 · P100/6B SW · AREA2 · P100/7A SW · AREA2 · P100/7B SW · AREA2 · P100/8A SW · AREA2 · P100/8B SW · AREA2 · P100/9A SW · AREA2 · P100/9B SW · AREA2 · P101/0A SW · AREA2 · P101/0B SW · AREA2 · P101/1A SW · AREA2 · P101/1B SW · AREA2 · P101/2A SW · AREA2 · P101/2B SW · AREA2 · P101/3A SW · AREA2 · P101/3B SW · AREA2 · P101/4A SW · AREA2 · P101/4B