A dataset to show all Driver Location Signs on the Strategic Road Network. These marker posts are located at 100m intervals. The location is represented as P (post) 110 (kilometres from the start of the motorway) / 9 (+900 metres i.e. 110.9km from the start of the motorway) B (direction of travel, B = East to West in this instance) J28/27 (junction range the post falls between) Area 12 (Highways England management area) P110/9B, ...