Improving safety in bike lanes is the aim of a recent study by the Highway Engineering Research Group (HERG) of the Universitat Politècnica de València (UPV). Their research analyzes the skid resistance of five types of pavements—asphalt pavement, concrete pavement, smooth and rough painted tiles, and cobble pavement—at seventeen locations in Valencia city.Improving safety in bike lanes is the aim of a recent study by the Highway Engineering Research Group (HERG) of the Universitat Politècnica de València (UPV). Their research analyzes the skid resistance of five types of pavements—asphalt pavement, concrete pavement, smooth and rough painted tiles, and cobble pavement—at seventeen locations in Valencia city.