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The first component of the evaluation will be to document the <br />characteristics of each project that is implemented. This documentation <br />will specify the actions taken, implementation schedule, and implementation <br />cost. It also will report problems encountered tn implementing the <br /> <br />projects. <br /> To determine the effectiveness of projects, a before-and-after <br />evaluation framework will be used. A key component of the framework will <br />be to determine the change in problem magnitude indicators (developed in <br />Phase II) resulting from implementatiOn- <br /> The before-and-after data will be supplemented by a log of actual <br /> events associated with each problem magnitude indicator. The log will be <br /> kept for both the periods before and after project implementation- This <br /> information will include, for example, emergency service delays experienced <br /> at grade crossings and the consequences of the delays, grade crossing <br /> accidents, and observed vehicle delays. <br /> A log of information regarding direct effects of demonstration <br /> projects also will be kept. For example, a record will be kept of calls to <br /> which the rescue squad responds and whether the service made a difference . <br /> in patient outcome. Similarly, the number of times the emergency communi- <br /> cation system is used, how the system ts used, and the results (reduction <br /> of delays and effects on patient outcome) will be recorded. <br /> A final component of the data collection effort tn Phase III will <br /> be to determine whether community perceptions of problem magnitude have t <br /> changed as a result of the demonstration projects. This ts a particularly <br /> important measure of project effectivenesS- The change in people's <br /> perceptiOnS reveals whether a certain amount of change in an indicator of <br /> <br />33 <br /> <br /> <br />