Swiss referendum, 1927

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A double referendum was held in Switzerland on 15 May 1927.[1] Voters were asked whether they approved of amending article 30 of the constitution and a federal law on car and bicycle traffic.[1] The constitutional amendment was approved by voters, whilst the traffic law was rejected.[1]


The constitutional question was a mandatory referendum,[1] which required a double majority; a majority of the popular vote and majority of the cantons.[2] The decision of each canton was based on the vote in that canton.[2] Full cantons counted as one vote, whilst half cantons counted as half.[2] The traffic law question was an optional referendum,[1] and required only a majority of voters.[2]


Constitutional amendment[edit]

Choice Popular vote Cantons
Votes % Full Half Total
For 334,206 18 6 21
Against 199,305 37.4 1 0 0
Blank votes 39,566
Invalid votes 1,137
Total 574,214 100 19 6 22
Registered voters/turnout 1,038,136 55.3
Source: Nohlen & Stöver

Traffic law[edit]

Choice Votes %
For 230,287 40.1
Against 343,387 59.9
Blank votes 25,652
Invalid votes 1,275
Total 600,601 100
Registered voters/turnout 1,038,136 59.9
Source: Nohlen & Stöver


  1. ^ a b c d e Nohlen, D & Stöver, P (2010) Elections in Europe: A data handbook, pp1909–1910 ISBN 9783832956097
  2. ^ a b c d Nohlen & Stöver, p1891