Urban growth and pedestrian thermal comfort

Melbourne is the second largest city in Australia, and its population is anticipated to reach 6.5 million by 2050. In October 2013, Plan Melbourne was released by Victorian government, aiming to intensify several districts to protect the suburbs from urban sprawl. The City of Melbourne’s draft municipal strategic statement identified City North as a great urban renewal area which can accommodate a significant part of the growth. Given the previous heat-related incidence in Melbourne in 2009, the potential threat to human health and pedestrian comfort will be exacerbated, if planning professionals exclude climatic conscious urban design in their practices. Therefore, this study aims to investigate the effect of the future structural plans on the microclimate and pedestrian thermal comfort in City North through numerical simulations. A three dimensional numerical modelling system, ENVI-met was used for the simulation. Field measurements were conducted across the study area to validate the simulated outputs. A clear reduction was reported in the average daytime mean radiant temperature, surface temperature and PMV values after implementing “Plan Melbourne” strategies. The outcomes of this study will assist urban planners in developing the policies which can effectively decrease the vulnerability to the heat stress at pedestrian level.

Departmental advisers as official interpreters : torchbearers and holders of official knowledge

The work undertaken by departmental advisers who assist teachers to implement particular state education policies such as syllabus and curriculum documents is the focus of this paper. The author's doctoral thesis involved an analysis of the interactions between teachers, the texts of the Queensland English Syllabus, and two women who worked as 'official interpreters' guiding teachers in their uses of the texts. This paper examines the complex positions taken up by these interpreters. On the one hand, their expertness is demonstrated by the official knowledge they hold and by the torchbearing work they do with teachers. But on the other hand, the choices and selections made during this torchbearing work are governed by the interpreters' regulation by the discourses surrounding their official knowledge. The research undertaken on these interpreters' work informs the author's final call to recognise the complexity surrounding implementations of new curriculum and syllabus documents. Such recognition would include making use of the departmental advisers' expertness and depth of knowledge in particular curriculum areas in innovative and collegial projects crossing over traditional boundaries between academic research and teachers' practices.

Meeting the challenge of establishing commercial mohair enterprises by building an interactive enterprise management and financial model

To assist in attracting investors into mohair production in Australia, a production and financial model was built as a learning and support tool. The work aimed to reduce search time and thinking costs about the impact of management strategies on financial feasibility. Various management strategies and assumptions applied to a case study with 300 breeding Angora does and eight variations. The results showed an internal rate of return for mohair ranging from 9.3% to 21.2% over 12 years, a median gross margin per effective hectare ranging from $82 to $167, cash at bank in year 12 ranging from $8,700 to $56,800 and net enterprise assets ranging from $69,900 to $155,700. A key benefit of the model was its ability to allow new farmers to explore potential management strategies and their assumptions about a future enterprise before investing.