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OCR for page 69
Welcome to the CAPTA Process The CAPTool User Guide The CAPTool User Guide is a reference for those using CAPTool to apply the CAPTA methodology. The Guide provides definitions, the purpose of each step, and step-by-step instructions. The user is guided through the process, aided by examples and illustrations. The outline for each step instruction section is as follows: Introduction: Provides an overview of the step. Purpose: Provides information on what the step will accomplish. Definition: Provides information on terms used within the step. Assumptions: Provides information on assumptions inherent within the step. User Inputs: Provides instruction on the actions required of the user during the step. Output: Provides information on the data available after processing the inputs in the step. Example: Provides an illustration using the fictional Apex Transportation Authority (ATA). Preparation CAPTool is Microsoft Excel based and requires that the user have a rudimentary knowledge of that application. The tool uses Microsoft Excel macros and Visual Basic embedded in a Microsoft Excel spreadsheet. Changes to the Visual Basic subroutines will change the results, and thus changes should not be made without careful testing. Upon startup of the program, the tool will ask the user to "Enable Macros." Click the box cor- responding to "Enable Macros." The tool requires data concerning the asset categories to be considered in the analysis. The user is best served by compiling these data before using CAPTool. The required data are described in Table 3. Data Consistency Asset data should be vetted to ensure that measures of capacity, occupancy, detour length, replacement costs, and other factors are verified and applied consistently. Specific attention should be paid to the following measures: Maximum Train Capacity (Occupancy): The rated occupancy of a rush-hour train set should be entered. The agency should use rated data from the manufacturer and the size of a rush- hour train set assembled according to standard operating procedure. Using these existing data 71

OCR for page 69
72 CAPTool User Guide Table 3. List of required data for use in the CAPTool. Category Required Data Identification of asset or asset class, quantity, annual average daily traffic, length (ft), travel lanes, detour length to nearest Road Bridges available crossing, type of construction, replacement cost (if known). Identification of asset or asset class, quantity, annual average Road Tunnels daily traffic, length (ft), travel lanes, detour length to nearest available crossing, replacement cost. Identification of asset or asset class, quantity, maximum train capacity (occupancy), knowledge that the structure is below Transit/Rail Stations grade or above grade, knowledge that station is a transfer point. Identification of asset or asset class, quantity, maximum train Transit/Rail Bridges capacity (occupancy), type of construction, length (feet), percentage of total ridership using the bridge. Identification of asset or asset class, quantity, maximum train Transit/Rail Tunnels capacity (occupancy), replacement cost, length, percentage of total ridership using the bridge. Administrative & Support Identification of asset or asset class, quantity, square footage Facilities of facility, replacement cost, maximum occupancy of facility. Identification of asset or asset class, quantity, maximum Ferries occupancy (persons), maximum occupancy (vehicles). Identification of asset or asset class, quantity, maximum Fleets occupancy (vehicles), average cost per vehicle. eliminates ambiguity concerning both smaller train sets that may operate during non-rush hours and under-filled trains. Administrative and Support Facilities Capacity (Occupancy): Occupancy data entered should correspond to the occupancy limitations as set by local fire code. Maximum Occupancy of Persons and Vehicles for Ferries: Occupancy data should corre- spond to the maximum limitations set by the United States Coast Guard. Maximum Occupancy for Fleets: Occupancy data should correspond to that provided by the vehicle manufacturer. Detour Length: Detour length should be measured from the point of the impacted bridge or tunnel to the point of the nearest structure capable of providing at least 50 percent capacity replacement. Capacity replacement may be measured in private vehicles only, or in combined private and commercial vehicular traffic. This percentage can be adjusted upward based upon specific situations as long as all the structures are treated similarly. For example, if "detour" is determined to be the distance to a crossing that can accommodate commercial and private vehicles for road bridges, then that criterion applies to all crossings.