Herrliberg and between Stäfa and Uerikon, along with new stations. The main problem was finance. Development of the line would only serve local interests and would not lead to increased revenue for Swiss Federal Railways (SFR). At the time the canton and cities affected could not fund improvements to an SFR line, so the law was changed to allow local contributions. The new Gold Coast Express service operated a regular schedule every half-hour, with the total journey time for the distance of reduced from the previous 60 to 40 minutes. The most striking feature of the improved railway was the three-car claret-coloured RABDe 12/12 electric multiple units. These had good acceleration and braking performance and immediately became known as "Mirages", after the jet fighters. The modern features of the Mirages included automatically closing doors, which allowed short stops at stations and a reduction in travel time. U-Bahn rejection On 30 May 1959 some voters put two proposals to the Zürich City Council. The first would have allocated CHF 200,000 for a study on the construction of a two-line U-bahn (underground railway) with lines from Enge to Kloten and from Altstetten to Tiefenbrunnen; but it was opposed by the majority of the City Council and failed. The second motion proposed the establishment of a company to build and operate a Zürich U-Bahn. The city had already considered such a proposal and opposed it, on the basis that Zürich was not big enough for an underground railway, and it would cost too much. In a referendum on 14 February 1960, 69.8% of voters voted "no" to the proposal. Following further work and the enactment of a new transport act, the regional public transport authorities presented a new proposal for a combined regional U-Bahn and S-Bahn system, with the latter being a railway network centred on a tunnel under the city centre, which would connect to existing suburban railway lines. From Zurich Airport, an U-Bahn line would run via Glattbrugg, Oerlikon, Hirschenwiesen, Central, Zürich Hauptbahnhof, Stauffacher and Altstetten to Dietikon. Much of the line would have run above ground. The second part of the proposal was the "Zürichberg network", a line from Zürich Hauptbahnhof via a new tunnel under the Zürichberg to Dietlikon to the northeast (not to be confused with Dietikon, which lies to the west of Zürich). The proposed construction of an underground station in Museumstrasse on the north side of