Marker Posts on the A303

Dataset summary for A303 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 (A303)
3007
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 2331 77.52% 122/8A – 239/5B
AREA3 676 22.48% 87/9A – 122/7A
Region breakdown
NE / NW / SW…
Region Count %
SW 2331 77.52%
SE 676 22.48%
Regions help you understand coverage and where the dataset is densest.
Suffix letter breakdown
A / J / M / K…
Suffix Count %
A 1504 50.02%
B 1503 49.98%

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 A303 dataset:

SE · AREA3 · P100/0A SE · AREA3 · P100/0B SE · AREA3 · P100/1A SE · AREA3 · P100/1B SE · AREA3 · P100/2A SE · AREA3 · P100/2B SE · AREA3 · P100/3A SE · AREA3 · P100/3B SE · AREA3 · P100/4A SE · AREA3 · P100/4B SE · AREA3 · P100/5A SE · AREA3 · P100/5B SE · AREA3 · P100/6A SE · AREA3 · P100/6B SE · AREA3 · P100/7A SE · AREA3 · P100/7B SE · AREA3 · P100/8A SE · AREA3 · P100/8B SE · AREA3 · P100/9A SE · AREA3 · P100/9B SE · AREA3 · P101/0A SE · AREA3 · P101/0B SE · AREA3 · P101/1A SE · AREA3 · P101/1B SE · AREA3 · P101/2A SE · AREA3 · P101/2B SE · AREA3 · P101/3A SE · AREA3 · P101/3B SE · AREA3 · P101/4A SE · AREA3 · P101/4B