How ZZ Admin Test got moving
A month without the car has left a lasting impression. Here are the results of the change.
Change in modal split
A month without the car has left a lasting impression. Here are the results of the change.
Is this for real?
Yes! 31DAYS is an official industry initiative of Alliance SwissPass and SBB. Together, we want to drive the mobility transition in Switzerland forward.
Methodology & sources:
We calculate the CO2 saved in three steps: 31 car-free days (daily distance{fn1} × share of private motorised transport{fn1} × 31 days), then the shift to public transport{fn5},{fn6} and car sales{fn3},{fn4}. Every car kilometre avoided saves a net {net} g CO2 (car fleet minus public transport mix{fn2}). The impact over 1 and 5 years takes rebound effects into account{fn7}.
Get moving in 2026 too!
Don't miss the start of the next 31DAYS challenge. Join the waiting list now.
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