Weightage factor for criteria of design & construction for green highway

Construction industry were one of the major contributor towards the environmental effect such as climate changes. Beside this the government is committed to reduce the CO2 by 40 % in 2020. Construction is one of the major contributor on CO2 emission. Hence, there is a need to reduce the impact on environment. The aim of this paper is to explain the methodologies for the determination of weightage for criteria of design and construction activities. The methodology processes begin with data collection by using questionnaires distribution the expertise who involve in highway development and green issues. There were 22 concessionaires with 140 respondents had been chosen to fill in the questionnaires. The data had been analysed using SPSS with factors analysis method. Results from the analysis show the weightage of each criterion were used to rank the criteria based on importance of the criteria in design and construction activities of highways. The result showed that the construction management had the highest weightage and follow by other 6 criteria

Investigation of green assessment criteria & sub-criteria for public hospital building development in Malaysia

Malaysia as a developing country has extreme motives towards sustainable development as a lifestyles practice, thus the need to prepare for the change is required. The implementations of sustainability have become important initiatives discussed and undertaken by both private and public sector dealing with residential and non-residential buildings including hospital buildings. A hospital, healthcare facility, has been upgraded from essential to very essential in the context of Sustainable City. Buildings are known as human habitat and shelter. Peoples' health and the environment condition are highly influenced by the way the buildings have been designed, constructed and operated. Compared to other building types, the 24 hours' scenario use of healthcare buildings have a particular large impact on the environment. The problems created by rampant urbanisation are among the most important challenges recently. Thus, the development of green hospital is important in order to create a healthy lifestyle that viable economically, environmentally and socially. The investigation of green assessment main criteria and sub criteria for public hospital building development in Malaysia is the primary aim for this research. Healthcare buildings' essential criteria of existing green rating systems worldwide and the difference between each criterion compared to Malaysian green rating system all are compiled. Guideline and existing tools are thoroughly reviewed, analysed and divided according to similar categories covers all aspect of building design, construction and operation. The data then will be analysed using content analysis in order to identify the various sub criteria to hospital buildings development. The results from the analysis demonstrate a set of assessment criteria for green public hospital building corresponding to Malaysia's scale

Energy efficiency initiatives in a campus building

Higher Learning Institution (HLI) is a place for academicians, students and its administration staff in a campus. HLI is among the favoured targeted locations to embrace for sustainability and energy conservation solutions due to the campus operations and activities that have significant energy consumption depending on the size of the campus including its buildings and infrastructures. There are several alternatives for which HLI is able to offer huge opportunities in retrofitting initiatives to concern on energy efficiency. This paper presents a study leads to the identification of possible retrofit initiatives and the criteria affecting the retrofitting of M50 building in Faculty of Civil Engineering towards zero energy. A questionnaire survey was distributed to occupants of M50 building in order to identify the preferred energy efficiency technologies to be implemented. The result was analysed with Relative Importance Index (RII) and it shows that solar photovoltaic, green roof and variable air volume were among the most preferable technologies. The relevant criteria for each energy efficiency initiatives being prioritised and ranked based on Factor Analysis (FA). The purpose of using the selected approach and ranking is to investigate the significance of each criteria. The performing result assists as a step for energy efficiency initiatives in a campus building, thus minimizing the energy impact to environment from its operations and activities. The study outcome is also indirectly fulfilling an example case for sustainable teaching, learning and research process

Benthic chamber and profiling landers in oceanography. A review of design, technical solutions and functioning

We review and evaluate the design and operation of twenty-seven known autonomous benthic chamber and profiling lander instruments. We have made a detailed comparison of the different existing lander designs and discuss the relative strengths and weaknesses of each. Every aspect of a lander deployment, from preparation and launch to recovery and sample treatment is presented and compared. It is our intention that this publication will make it easier for future lander builders to choose a design suitable for their needs and to avoid unnecessary mistakes.<br/