Obviously, the consumer. The city of Perth in Australia commissioned an expert group comprising members from gas authorities, transport and environment departments, and an environmental economist for advice on the best fuel for Perth s buses in the long term . The group concluded that on all three grounds environmental, operational, and economic low-sulphur diesel was the fuel of choice. Its clean to walk and cycle, yet little is done to help people who do by way of introducing separate dedicated bicycle lanes. IN New Zealand cities, the walker and cyclist is viewed as a nuisance by drivers and authorities, instead of a saviour.
Polluted air is a symptom, a symptom of the absence of a coherent, integrated policy for transport.
Attempts to control air pollution without improving the way transport is managed in cities is like dipping a thermometer in a bucket of ice to escape summer heat. Choosing the right combination of automobile technology and fuel, of course, is a very important part of any strategy to reduce the ill effects of air pollution, but it is not the only solution. The first, which focuses on efficient management of traffic, represents the strategic approach and the second, which focuses on vehicles and fuels, represents the technical approach. The strategic approach, for most part, offers quick solutions the results of which will be apparent within months whereas the technical approach covers solutions the benefits of which will be apparent only over years. In terms of costs also, the strategic approach is generally cheaper than the technical approach it is also the least controversial.