Marker Posts in HE

Dataset summary for HE 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 (HE)
16926
Breakdowns included
Road Area (AREA1–AREA12) Suffix (A/J/M/K…)
Road breakdown
Canonical grouping
Road Count % View
A14 2403 14.2% View road
M40 2046 12.09% View road
M4 1995 11.79% View road
M25 1895 11.2% View road
M11 1673 9.88% View road
M1 1660 9.81% View road
A1 1222 7.22% View road
A1M 1197 7.07% View road
A12 685 4.05% View road
A34 562 3.32% View road
A11 362 2.14% View road
A120 271 1.6% View road
A329M 207 1.22% View road
A5 151 0.89% View road
A404 112 0.66% View road
A414 101 0.6% View road
A404M 80 0.47% View road
GERRARDSCROSS 77 0.45% View road
A1089 70 0.41% View road
COLNBROOK 57 0.34% View road
A14M 37 0.22% View road
LONDONNORTH 35 0.21% View road
WINNERSH 22 0.13% View road
THEYDON 6 0.04% View road
Area breakdown
Includes numeric range
Area Count % Range
AREA8 5112 30.2% 0/0A – 124/2B
AREA5 3621 21.39% 10/1A – 185/9A
AREA6 3156 18.65% 24/6B – 210/9A
AREA3 2350 13.88% 8/4 – 110/1A
AREA30 2059 12.16% 29/2A – 130/9A
AREA29 407 2.4% 5/5B – 25/9B
WOKINGHAM DC 207 1.22% 2/9A – 13/5B
AREA7 13 0.08% 42/8B – 43/6B
HOUNSLOW LB 1 0.01% 12/1B – 12/1B
Suffix letter breakdown
Derived from the end of the marker post number
Suffix Count %
A 8575 50.66%
B 8025 47.41%
? 223 1.32%
J 51 0.3%
M 41 0.24%
K 8 0.05%
L 3 0.02%

Example: 0/1J → suffix J.

Example marker posts

A small sample of marker posts for HE:

A1 · AREA6 · P25/8A A1 · AREA6 · P25/9A A1 · AREA6 · P26/0A A1 · AREA6 · P26/0B A1 · AREA6 · P26/1A A1 · AREA6 · P26/1B A1 · AREA6 · P26/2A A1 · AREA6 · P26/2B A1 · AREA6 · P26/3A A1 · AREA6 · P26/3B A1 · AREA6 · P26/4A A1 · AREA6 · P26/4B A1 · AREA6 · P26/5A A1 · AREA6 · P26/5B A1 · AREA6 · P26/6A A1 · AREA6 · P26/6B A1 · AREA6 · P26/7A A1 · AREA6 · P26/7B A1 · AREA6 · P26/8A A1 · AREA6 · P26/8B A1 · AREA6 · P26/9A A1 · AREA6 · P26/9B A1 · AREA6 · P27/0A A1 · AREA6 · P27/0B A1 · AREA6 · P27/1A A1 · AREA6 · P27/1B A1 · AREA6 · P27/2A A1 · AREA6 · P27/2B A1 · AREA6 · P27/3A A1 · AREA6 · P27/3B