ABSTRACT:Development of an innovative method to enhance the detection of tuberculosis (TB) in Malaysia is the latest agenda of the Ministry of Health. Therefore, a geographical information system (GIS) based index model is proposed as an alternative method for defining potential high-risk areas of local TB cases at Section U19, Shah Alam. It is adopted a spatial multi-criteria decision making (MCDM) method for ranking environmental risk factors of the disease in a standardised five-score scale. Scale 1 and 5 illustrate the lowest and the highest risk of the TB spread respectively, while scale from 3 to 5 is included as a potential risk level. These standardised scale values are then combined with expert normalised weights (0 to 1) to calculate the overall index values and produce a TB ranked map using a GIS overlay analysis and weighted linear combination. It is discovered that 71.43% of the Section is potential as TB high risk areas particularly at urban and densely populated settings. This predictive result is also reliable with the current real cases in 2015 by 76.00% accuracy. A GIS based MCDM method has demonstrated analytical capabilities in targeting high-risk spots and TB surveillance monitoring system of the country, but the result could be strengthened by applying other uncertainty assessment method.
Quality of life is the main interest for people nowadays. Live in safe place with strong spatial economical will bring city liveable and among valuable assets in a city. Many innovations in town planning and design have been launched with great optimism over the years to addressing the people’s concern including crime reduction. High development in city nowadays will minimize the visual capability that can seriously cause fear of crime. Many studies proved that man-made and natural environment affect the visibility degree thus affect the crime. With the emphasizing of physical environmental such as contour, trees, and building height into the space visibility analysis could inherent the actual and real-time phenomenon. Isovist and Visibility Graph Analysis (VGA) could be methods to evaluate the visibility in environmental space. Thus, proposed approach which consider the evaluation of visibility in 2D and 3D with incorporate the movement pattern will allow the evaluation based on the human visual perspective.
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