Related Clues:

• In which one's routed differently
• It's awfully rude to make a digression
• It's not taken by one going straight
• Deviation is severe with alien insertion
• A way round
• Diversion of French trip
• Diversion routed the wrong way
• Routed all over the place, following this?
• Commuter's bane
• It could be due to introduction of roadworks
• The scenic route?
• Alternative route after onset of digging?
• Road construction sign
• Routed (anag.)
• Traffic workaround