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It should be noted that no cost estimation services are Included in this Scope of Services for the implementation of the SSMs. It is assumed that AAF will fund all necessary improvements. If such an agreement is not reached with AAF and the County requests assistance in preparing the SSM cost estimates, a separate Work Order will be prepared to provide those services. The following subtasks outline the requirements for submitting a Quiet Zone request to FRA. Subtask 2.1- Delineate Study Area The initial step in this study is to delineate the boundary and elements of the study area for the Quiet Zone Analysis. A number of items influence the selection, number and location of railroad crossings to be included in the study area. This list Includes: • Minimum Quiet Zone length • Budget considerations • Neighborhood interest • Noise Study Evaluation • Population density • Safety considerations Minimum Quiet Zone length, budget for the analysis and improvements, and neighborhood interest will be obtained through discussions with the County and other interested parties. Noise study data will be obtained from the documents provided by AAF (and'confirmed under Task 1). The population density will be obtained through a GIS analysis of land adjoining the rail lines. Safety considerations will be developed through observation and evaluation, and assist in selection of the treatment of each crossing to be included In the Quiet Zone. Deliverable: The result of this task will be the development of a mop of the recommended Quiet Zone study area, inclusive of road and rail infrastructure inventory within the study area. The map will be provided to the County electronically for review and comment prior to proceeding with the subsequent tasks. Subtask 2.2 - Update Train and Railroad Grade Crossing Data within the Study Area Task 2.2 will consist of a data collection and data entry effort. The data listed below will be obtained from a combination of the grade crossing inventory maintained by the County, Florida Department of Transportation (FOOT), diagnostic field evaluations performed in July 2014, and the FRA, and will be updated as necessary using operating data obtained from AAF's EIS report or from correspondence with AAF on train frequency, speeds and lengths. Data to be compiled includes: Train Data: • Number of trains • Type of trains (freight or passenger) • Schedule/speed/length of trains Grade Crossing Data: • Number of lanes • Vehicular traffic volumes (using available data from Indian River County and/or FDOT) • Type of warning device in use CDM Smith A-3 01536 doc 85