Ten referendums were held in Switzerland in 1990.Nohlen, D & Stöver, P (2010) Elections in Europe: A data handbook, pp1932–1933 The first six were held on 1 April on four popular initiatives, a federal resolution on viticulture and an amendment to the federal law on the organisation of the federal judiciary. The four popular initiatives were all related to roadbuilding; "Stop the concrete – for a limitation on road making," "for an autobahn-free countryside between Murten and Yverdon," "for an autobahn-free Knonauer Amt," and "for a free Aarelandschaft between Biel and Solothurn/Zuchwil." All six were rejected by voters.

The last four were held on 23 September on two popular initiatives to phase out nuclear power and to stop the construction of any new nuclear power plants, as well as on a federal resolution on the energy article in the Swiss Federal Constitution and an amendment to the federal law on road traffic. Whilst the nuclear power phase-out was rejected, the other three proposals were approved.Nohlen & Stöver, p1933

Results

April: Popular initiative to limit roadbuilding ChoicePopular voteCantonsVotes%FullHalfTotalFor500,61528.5000Against1,255,19771.520623Blank votes21,580––––Invalid votes2,107––––Total1,779,49910020623Registered voters/turnout4,327,12041.1–––Source: Nohlen & Stöver

April: Popular initiative for an autobahn-free countryside between Murten and Yverdon ChoicePopular voteCantonsVotes%FullHalfTotalFor571,64832.7000Against1,175,35667.320623Blank votes28,920––––Invalid votes2,248––––Total1,778,17210020623Registered voters/turnout4,327,12041.1–––Source: Nohlen & Stöver

April: Popular initiative for an autobahn-free Knonauer Amt ChoicePopular voteCantonsVotes%FullHalfTotalFor547,35931.1000Against1,197,70168.620623Blank votes32,026––––Invalid votes2,611––––Total1,779,69710020623Registered voters/turnout4,327,12041.1–––Source: Nohlen & Stöver

April: Popular initiative for a free Aarelandschaft between Biel and Solothurn/Zuchwil ChoicePopular voteCantonsVotes%FullHalfTotalFor592,23734.0000Against1,147,45966.020623Blank votes34,604––––Invalid votes2,333––––Total1,776,63310020623Registered voters/turnout4,327,12041.1–––Source: Nohlen & Stöver

April: Federal resolution on viticulture ChoiceVotes%For771,20746.7Against881,60953.3Blank votes109,745–Invalid votes3,679–Total1,766,240100Registered voters/turnout4,327,12040.8Source: Nohlen & Stöver

April: Amendment to the federal law on the judiciary ChoiceVotes%For775,88547.4Against862,53852.6Blank votes120,437–Invalid votes3,721–Total1,762,581100Registered voters/turnout4,327,12040.7Source: Nohlen & Stöver

September: Popular initiative on phasing out nuclear power ChoicePopular voteCantonsVotes%FullHalfTotalFor816,30047.1627Against915,74952.914416Blank votes21,690––––Invalid votes2,539––––Total1,756,27810020623Registered voters/turnout4,345,49040.4–––Source: Nohlen & Stöver

September: Popular initiative on stopping the construction of nuclear power plants

ChoicePopular voteCantonsVotes%FullHalfTotalFor946,08754.517519.5Against789,21945.5313.5Blank votes19,375––––Invalid votes2,446––––Total1,757,12710020623Registered voters/turnout4,345,49040.4–––Source: Nohlen & Stöver

September: Energy article in the federal constitution ChoicePopular voteCantonsVotes%FullHalfTotalFor1,214,94071.120623Against493,84628.9000Blank votes41,246––––Invalid votes2,930––––Total1,752,96210020623Registered voters/turnout4,345,49040.3–––Source: Nohlen & Stöver

September: Amendment to the federal road traffic law ChoiceVotes%For898,95852.8Against803,73347.2Blank votes45,612–Invalid votes2,907–Total1,751,210100Registered voters/turnout4,345,49040.3Source: Nohlen & Stöver

References