It's very annoying in Germany that in addition to motorways you're not allowed to ride on "Kraftfahrstraßen" (something like 'motor-drive roads'), mostly dual-carriageway A-roads ("Bundesstraßen"). Obviously not everybody's favourite roads but it's often extremely difficult to find another route if they have been built where the main/only road traditionally used to be and where there are no parallel or even remotely parallel alignments, and quite often you d0n't have to be on them for very long before they connect to proper roads again. They're marked by this sign:
It's very annoying in Germany that in addition to motorways you're not allowed to ride on "Kraftfahrstraßen" (something like 'motor-drive roads'), mostly dual-carriageway A-roads ("Bundesstraßen"). Obviously not everybody's favourite roads but it's often extremely difficult to find another route if they have been built where the main/only road traditionally used to be and where there are no parallel or even remotely parallel alignments, and quite often you d0n't have to be on them for very long before they connect to proper roads again. They're marked by this sign: