dutch highway direction sign in blue and white heading utrecht and bleiswijk

signpost road direction highway street sign traffic motorway transport symbol arrow transportation information roadsign blue travel warning white journey isolated attention vector drive alert city icon guidance empty lane turn destination united asphalt safe roadside netherlands autosnelweg anwb rijkswaterstaat a12 n209 zoetermeer boskoop alphen aan den rijn dutch heading utrecht bleiswijk n09