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March 14, 2012I a
March 14, 2012I agree with several of the pivoreus comments.I would like to add the following issues to the discussion:1st: I agree that the list looks fine and that we do not need much to have our glossary. We should focus on the key concepts of the Action. Considering this I would actually delete several of the concepts currently in the list because it does not really seam to make sens to discuss them in this forum, such as, academic quality/rigour, accuracy, Interpretability and Quality of data. I know these concepts were put here to clarify doubts during the filling of the Accessibility instrument Survey, but it does not make sense to me to keep them here. I would save this for the explanation of the survey only.2nd: I would also exclude the concept Planning . First, because, like Aud, I do not agree with the definition, and second because I would not say it is a controversial concept.3rd: I would exclude the concept Concept and substitute it by a new concept of Accessibility Measure . This concept only makes sense when defined and discussed in comparison to Accessibility instrument and Accessibility Indicator (thus I also suggest instrument be substituted by Accessibility instrument and indicator by accessibility indicator ) (see definitions below).4th: I would also delete the concept of Sustainable Accessibility because, as stated before by others, the concept is context related, and although valid is not sufficiently general to be in this list as a concept for sustainability in accessibility (not all dimensions of sustainability are considered).5th: I agree with Derek on the limited definition of gravity measures. I would call this measure potential measure .6th: I would include Planning Support Systems (PSS) to the list (See definitions below).Definitions:Accessibility Measure: Theoretical definition of how and what is measured in accessibility, presenting the main objects and objectives of the measure. Examples of accessibility measure: distance measures, contour measures, potential measures, gravity measure. inverse balancing factors, utility-based measures, etc. Each accessibility measure has a general conception and a general formulation of its accessibility indicator.Accessibility Indicator: mathematical formulation to measure a certain concept of accessibility (formula plus meaning of each variable or parameter).Accessibility Instrument: an operational tool of measure and interpretation of accessibility developed to support planning practice (analysis, design support, evaluation, etc.). May use one or several accessibility indicators. May be of a pure form of one single accessibility measure or combine characteristics of different accessibility measures.(I would suggest a scheme to clarify the relationships between these concepts)Planning Support Systems (PSS): is a subset of geoinformation-based instruments that incorporate a suite of components (theories, data, information, knowledge, methods, tools, etc) that collectively support all of, or some part of, a unique planning task (Geertman and Stillwell; 2003).





(VISITOR) AUTHOR'S NAME
Namwan

MESSAGE TIMESTAMP
16 december 2014, 20:01:30

AUTHOR'S IP LOGGED
62.210.78.179




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