Method for identifying scenic routes

A method for the identification of scenic routes and production of navigation data, comprising; a road network model, digital elevation model, view-shed visibility polygons, environmental and temporal data. Sample points are created throughout the survey area and visibility view-sheds created at each sample point. A novel method for checking the accuracy of view-sheds is disclosed. Environmental data is attributed to each sample point to describe the scenery visible at each location, including; scale of view, land-cover, population density, crop type, regional affluence, recommended views, heritage areas, road windingness or undulation, points-of-interest, parklands, established or themed routes, routes of genealogical interest, etc. A method for the recording of temporal attributes is also disclosed, providing for the dynamic calculation of scenic index where scenery changes over time, including; night views, sunsets, flowering vegetation, autumnal trees or the northern lights.