London Pavement North Alignment Marker

A survey marker, likely a North Alignment Marker, is embedded in a London pavement. These markers, often featuring a north arrow and circular design, serve as crucial reference points for surveyors and engineers. They are integral to maintaining the accuracy of the city's geospatial data, aligning infrastructure projects, and ensuring consistency with national mapping systems like those of the Ordnance Survey. Their presence underscores the meticulous planning required for urban development and maintenance in London.