Key legal question
Whether Eppenberg-Wöschnau had standing to challenge the traffic measure due to diversion traffic on its roads.
Extracted holding
Standing could not be definitively assessed because the file lacked sufficient data on the effects of the closure on alternative routes and existing traffic volumes.
Extracted reasoning
The impact on the municipality was unclear; the alternative route via Eppenberg-Wöschnau had not been studied, creating a factual gap.