ßen ▁national ▁high ways ▁are ▁Landes stra ßen , ▁because ▁they ▁were ▁placed ▁under ▁the ▁responsibility ▁of ▁the ▁federal ▁states . ▁ ▁Before ▁ 2 0 0 2 ▁there ▁were ▁two ▁types ▁of ▁Bundes straße : ▁ ▁A ▁white ▁number ▁an ▁blue ▁square ▁sign ▁identified ▁the ▁more ▁common ▁type ▁that ▁are ▁at ▁the ▁same ▁time ▁priority ▁roads ▁( Vor r ang straße ). ▁Their ▁vehicle ▁users ▁had ▁the ▁right ▁of ▁way ▁already ▁by ▁the ▁blue ▁sign . ▁ ▁A ▁black ▁number ▁( typ ically ▁greater ▁than ▁ 1 0 0 ▁) ▁on ▁a ▁yellow ▁circular ▁sign ▁marks ▁( less ) ▁roads ▁that ▁are ▁not ▁per ▁se ▁priority ▁roads . ▁ ▁Ex cept ▁in ▁Vor ar l berg , ▁the ▁former ▁Bundes stra ßen ▁continue ▁to ▁be ▁designated ▁with ▁the ▁prefix ▁B . ▁The ▁remaining ▁Landes stra ßen ▁are ▁prefix ed ▁with ▁the ▁letter ▁L . ▁On ▁traffic ▁signs ▁the ▁prefix es ▁are ▁usually ▁not ▁used , ▁unlike ▁the ▁A ▁( for ▁Aut ob ahn ) ▁and ▁S ▁( S chn ell straße ). ▁Ro ads ▁number ed ▁with ▁fewer ▁digits ▁are ▁generally ▁of ▁more ▁importance ▁in ▁the ▁road ▁network . ▁The ▁former ▁design ation ▁of ▁more ▁important ▁Landes stra ßen ▁in ▁several ▁states ▁as ▁Landes haupt stra ßen ▁( L H , ▁in ▁Vienna : ▁Haupt stra ßen ▁A ) ▁is ▁only ▁occasionally ▁seen ▁now ▁on ▁road ▁and ▁street ▁maps . ▁ ▁See ▁also ▁▁ ▁Aut ob ahn ▁ ▁Bundes straße ▁ ▁Geme ind estra ße ▁ ▁Kreis straße ▁ ▁References ▁▁▁▁ ▁Category