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Results and their presentation. Results may be displayed in tabular form along with sketches and maps produced for engineering and planning purposes. Photographs may also be used in discussion sessions to aid understanding and decision-making. Because most persons are able to comprehend changes in time more easily than changes in distances, every effort should be made to convert distance changes to travel time units using the average walking speeds obtained during the first phase of this method. Assessment. This is a relatively simple and low-cost method of assessing the impact of a proposed project on the accessibility of residents in a community that includes protected populations. This method may also be combined with the previous one to effect greater accuracy in decision-making. As stated before, accessibility is one of the key factors that affects communication and connectivity between members of such populations, factors that are central to the presence, strength, and level of community cohesion. RESOURCES The following documents are guides that provide readers with further information regarding the methods and techniques recommended in this chapter. A short description follows each title; it draws its text from the summary or introduction provided. 1) Babbie, Earl. 2000. The Practice of Social Research. Belmont, CA: Wadsworth Publishing Company. This textbook provides insights into the measurement and interpretation of aspects of social reality. Specifically, it provides guidance on the construction of questionnaires and the evaluation and analysis of survey results. 2) Barnard, Kara, and Samita Lall. 1998. "We've Got To Stop Meeting Like This: 36 Ways To Encourage Civic Participation." Toronto Health City Office, Toronto, Ontario, Canada. Available at http://www.unchs.org/cdrom/governance/html/yellop31.htm>http://www.unchs. org/cdrom/governance/html/yellop31.htm. This report is a reference for governments, organizations and agencies to assist them in gaining greater public participation in decision-making. It provides a variety of methods for engaging the public and discusses barriers to participation, both physical and perceived. 3) U.S. Architectural and Transportation Barriers Compliance Board. 1998. "Accessible Elements and Spaces: Scope and Technical Requirements." Americans with Disabilities Act (ADA) Accessibility Guidelines for Buildings and Facilities. Washington, DC. Section 4. Available at http://www2.bc.cc.ca.us/supportiveservices/ada_text.htm. This link provides technical information on standards for constructing transportation facilities as required under the American for Disabilities Act (ADA). The focus is on aspects related to accessibility. 215