Early all-pervasive changes helped greatly to expose the public to metric units. Such changes included tariffs (July 1972), horse racing (August 1972), and air temperature (September 1972). Metric description of athletics, soccer, golf, and cricket on television and radio, and in newspapers, served a useful educational purpose. Even the most dramatic changes such as speed limits to km/h only proved to be “non-events”. It was agreed that dual-marked signs would be potentially dangerous.
The conversion of retail food scales took place in 1974-75. It was found necessary to impose fines on retailers who did not convert.
A public opinion survey in December 1976 indicated that many still knew little of the metric system, and often less of the imperial system. They managed well, as always without needing to involve themselves with quantities, whether metric or imperial. This led the Board to conclude that any attempt to further “educate” the public would probably be ineffective and unnecessary.
A conference of Commonwealth and State Ministers in October 1977 agreed to withdraw the legality of non-metric units used in contractual agreements.
Adult education classes on the metric system failed to attract interest, which confirmed the Board’s belief that such courses were unnecessary. It also confirmed the Board’s belief that people do not perceive metric in systematic form but learn each unit and its application as an independent and unrelated piece of information. As a consequence the highly logical nature of the metric system or the unsystematic nature of the imperial system had very little meaning for the ordinary citizen. Re-education of ordinary people should therefore concentrate on providing a new set of metric benchmarks and avoid irrelevant references to the elegance of the metric system.
At the outset, wide-spread public resistance seemed possible, but it did not occur, despite the efforts of a small band of dedicated anti-metricationists. Even major changes, such as speed limits and metric shopping, were not traumatic. Metrication was never a political issue, and it was actively supported by the trade unions.
By May 1979 the following programs were completed:
* Education at all levels
* Gasoline sales
* Weather forecasts
* Building and construction
* About 30 of the 50 sporting codes
* Retail sales in most States
Some fields were static or slow moving, including:
* international aviation
* precision engineering
* real estate advertising
* advertising of goods described, but not sold, by measurement e.g. furniture, kitchen utensils.
The Metric Conversion Board spent a total of $5 955 000 (Australian) during its 11 years of operation, and the Commonwealth Government distributed a total of $10 000 000 to the States to assist them in the conversion process. No accounting has been made of the cost to the private sector. The Prices Justification Tribunal reported that metrication was not used to justify price increases.