摘要：The paper presents a novel application of detailed satellite imagery (and derived products) in estimating traffic speeds on public roads over large areas and for large numbers of road sections. The data used were taken from Corine Land Cover 2006, a digital elevation model based on SRTM-3, as well as from sources offering detailed information on population distribution. This helped quantify the impact of land use (primarily development) and landform on the speed of uncongested vehicle traffic on roads of different categories, including motorways, other dual carriageways, regular highways, local roads, etc. The study produced a map of potential vehicle speed in Poland at the scale of 1:1,000,000, which could be used to study temporal accessibility, in particular isochrone analysis.
关键词：traffic speed; road velocity; personal transport; spatial accessibility; Corine land cover; SRTM-3; Poland
