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46 CHAPTER 3 NBMD Software Applications The NBMD data system includes a formal organization for Shortcuts to Applications directories that contain data, software applications, and XSD schema files. In this chapter, the organization of directories and To create shortcuts to NBMD applications, do the following: the use of software applications are presented as instructions Open two Explorer windows, and set one to the NBMD and tutorials. directory and the second to the apps directory. The computer desktop will look like Figure 10. To create a shortcut for the NBMD viewer application, in Directory Structure the apps directory select NBMD.exe with the mouse, hold The full implementation of the NBMD system includes tab- down right-click, and drag into the NBMD directory. Release text data files, XML documents, XSD schemas, and applications the mouse. In the small context menu select "Create Shortcuts for basic viewing and checking of NBMD data tables and for Here." There is now a shortcut to the viewer in NBMD. generationof XMLdocumentsfromNBMDtab-text data tables. Repeat the steps to create shortcuts for Keywords.exe and The NBMD applications require a specific arrangement of for NBMD_XML.exe. Once complete, the contents of the directories and files. The directory tree is shown in Figure 9. NBMD directory will look like Figure 11. The NBMD directory contains directories for applications, xsd schemas, and NBMD datasets. The apps directory contains Data Directory executable files for the NBMD viewer, keyword checker, file sizer, and XML generator. The Data directory contains datasets. The Data directory contains datasets, with each set in its The xsd directory contains the definition files for schema for own subdirectory. A typical set of subdirectories is shown in NBMD tables. For installation on users' computers, it may be Figure 12. Each subdirectory contains the TXT files and XML convenient to create the NBMD root directory as a subdirectory documents for a single set of bridge maintenance data. to Documents. For installation from the distribution disk, drag As additional datasets are developed, they are added as the NBMD directory into Documents (My Documents on Win- subdirectories to the Data directory. dows XP), or into another directory of choice. NBMD Applications NBMD Directory The NBMD system includes software applications to view The NBMD directory is the root directory for all NBMD and check text files of NBMD tables, an application to create files. It may be convenient for the NBMD directory to con- XML documents from NBMD text files, and an application tain shortcuts to NBMD applications. The user must create to generate the NBMD_Size_Table that is used by the NBMD shortcuts, if desired. Steps to create shortcuts are presented in viewer. The applications function under Windows XP and the following sections. Windows Vista operating systems. apps Directory NBMD Viewer Application The apps directory contains executable files and icons for The NBMD viewer, called simply NBMD, is the main appli- four applications: NBMD, NBMD_XML, Keywords, and cation for cursory investigation of the contents of NBMD NBMD_Size. datasets. The NBMD viewer also computes element-level

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47 A startup, only the Datasets and About tabs are active. Other tabs remain disabled until bridge maintenance data are loaded. The Datasets tab has three buttons (Table 47). Loading Bridge Maintenance Data Figure 9. NBMD directory tree. To load bridge management data, click the Data Direc- tory button, and use the browser window to select the Data costs of maintenance actions. With the NBMD viewer, users directory. When the selection is made, the screen will look can determine whether (and which) datasets have useful like Figure 14. information. Click OK, and available datasets will be listed in the upper box of the application (Figure 15). The available datasets appear in a checkbox list. The NBMD Running NBMD application can load one or more datasets. Check the datasets To run NBMD, double click on NBMD.exe in the apps direc- to retrieve. Here, the dataset for California DOT will be loaded. tory, or double-click on the NBMD shortcut in the NBMD Check the box, and click the Load Sets button (Figure 16). directory (if shortcuts have been created). The opening screen Datasets may take several minutes to load. Larger sets and appears (Figure 13). the selection of multiple sets require longer times for loading. The NBMD viewer provides tabbed interface for access to The progress bar at the bottom of the tab will advance several datasets and to tables within datasets. There are eight tabs times as various loading and computing steps are executed. (Table 46). When the work is complete, the progress bar is filled, and val- Figure 10. Making shortcuts.

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48 Figure 11. Shortcuts for NBMD applications. ues of file lengths for production, bridges, elements, and DOT dataset contains 1,578 events on 1,153 bridges with an resources are displayed (Figure 17). aggregate cost of more than $15MM (MM is one million) The other tabs (Actions, Elements, Bridges, Resources, (Figure 19). Action Costs and Element Costs) are now active. Their func- The Filter button checks which keywords occur together in tions are similar. bridge maintenance records. The Clear button resets all selec- Click on the Actions tab to open it. There is a computation tion boxes to Any. This is useful after filtering on keywords to task; its execution is indicated by the progress bar. At com- get subsets of maintenance actions. pletion, the tab lists the earliest and latest dates in the set of Hit the Clear button, and then explore the selection boxes bridge maintenance data; five selection boxes, each set to Any; (but don't select anything just yet. Leave all boxes set to Any). and three buttons (Figure 18). Each selection box lists unique entries for a data field. Each The upper four selection boxes operate with NBMD key- selection box lists only those entries that are present in the data- words for maintenance actions. The lower, fifth selection box set (Figure 20). operates with DOTs' codes and titles for maintenance actions. Look at the Activity selection box. There are 14 activities The Actions tab provides counts of the number of events, num- listed, if all other boxes are set to Any. Go to the Component ber of bridges, and aggregate cost of maintenance actions for selection box. Select Deck, and then press the Filter button. Now selected maintenance actions. look at the Activity box again; there are only six activities. These The Run button produces a summary. Click on Run (with activities occur for Deck components (Figure 21). all selection boxes set to Any), and find that the California Press Run and find that the California dataset contains deck work in 278 maintenance events on 262 bridges with the aggre- gate cost just under $12MM. In the Activity selection box, select Overlay (keep Deck as the selected component). Press Run and find that California data contains deck overlays in one event on one bridge costing $3.4k. To perform Filter operations, press the Clear button, select an entry in any of the five selection boxes, and press Filter. The selected entry remains, and all other selection boxes are adjusted to the subset of entries that occur with the first selection. To Fil- ter on two or more selection boxes, perform sequential Filter operations. That is, make a first selection, press Filter. Make the next selection (in a different selection box) and press Filter. The Figure 12. Data and remaining selection boxes are updated for the combination of datasets. the first two selections.

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49 Figure 13. NBMD viewer application. Table 46. NBMD viewer tabs. Tab Description Datasets Selection and loading of one or more NBMD datasets Actions Summary of maintenance action records in a dataset Elements Summary of bridge element records in a dataset Bridges Summary of bridge records in a dataset Resources Summary of resource records in a dataset Action Costs Summary of costs of maintenance actions Element Costs Summary of costs of element-level actions, and output of element cost table About Information on NCHRP Project 14-15 Table 47. Buttons on datasets tab. Button Description Data Directory Navigate to the Data directory Load Sets Build data tables for selected datasets Clear Clear current data tables, if any, and allow selection of other datasets.

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50 Figure 14. Data directory selection. Figure 15. List of datasets.

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51 Figure 16. Dataset selection. Figure 17. Datasets loaded.

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52 Figure 18. Actions tab. Figure 19. California action counts.

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53 Figure 20. Activity selection box. Figure 21. Activities for deck component.

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54 Tabs for Elements, Bridges, Resources 846,000 square meters, 400,000 linear meters, and 42,000 single and Action Costs elements. This is an indication of the scope of information available in this dataset (Figure 22). The tabs for Elements, Bridges, Resources and Action Costs Use Clear to reset boxes to Any. Now select the Joint com- have functions, selection boxes and buttons similar to the ponent and then filter; next select Compression form. Press Actions tab. Each tab accesses a different aspect of NBMD data. Run and find that the California dataset has 1200 inspections of 380 bridges having 34,000 meters of compression joints Elements Tab (Figure 23). For joints, or for other elements, the filtering and reporting facility indicates how much information is available The Elements tab provides summary reports of elements, in a dataset. From such indications, users decide whether a bridges, and element quantities in a bridge maintenance data- further and more detailed investigation of these data would set. Selection boxes are provided for NBMD element keywords be useful. for component, material, type, part and protection, and also for DOTs' designations of bridge elements. Selections and Bridges Tab filtering for elements operates as for Actions. The Run button provides a computation of the number of element-level inspec- The Bridges tab shows counts of bridges selected on the tions that include the selected element(s), the count of bridges basis of Owner, Material Type, Design Type, Functional Class, that include selected element(s), and the approximate aggre- ADT, and percentage ADTT. The Filter and Run functions are gate quantities of elements. If a Run includes elements with dif- similar to other tabs. Using the Bridge tab, find that California ferent units of measurement, totals in each unit are reported. dataset contains 161 prestressed concrete continuous bridges Using the California dataset, open the Elements tab, allow (Figure 24). the initial computation to complete (watch the progress bar), and then press the Run button. The computation of element Resources Tab counts and quantities is slow, but after a short wait, the tab indicates that California data includes around 4,200 element- The Resources Tab filters and reports resources used in level inspections at 1,150 bridges addressing bridge elements of bridge maintenance actions. Filter and Run functions are sim- Figure 22. Elements tab.

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55 Figure 23. California compression joints. Figure 24. Bridges tab.

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56 ilar to other tabs. An initial Run on the resources shows that that among seven events at seven bridges, the median cost for the California dataset contains resources records for 1,575 cleaning bearings is $450 each (Figure 27). events at 1,151 bridges with aggregate cost of nearly $21MM. Note that the cost reported for resources is greater than the Element Costs Tab cost of maintenance actions. This indicates that some DOT resource records are not matched to DOT action records. The Element Costs tab reports costs for actions that improve Set the resource category to Equipment and find that Cal- conditions of bridge elements. The method for computation of ifornia dataset contains records of equipment usage for element-level costs is presented in Chapter 5. The tab in the 1,134 bridges in 1,545 events costing about $2MM (Figure 25). NBMD viewer allows selection, filtering, and reporting func- Resources can be filtered and reported for selections of Man- tions equivalent to the functions of other tabs. The tab reports ufacturer and Product. In the Manufacturer box, select Mead- median values of element-level costs of improvement actions. ows, then Filter, and in the Product box, select Speed Crete. Now Select Joint as the component and then select Filter. In the select Run and find that California used Speed Crete in 79 main- Form box, notice that Modular, Open, and Strip Seal joints are tenance events on 76 bridges at a cost of $12,965 (Figure 26). listed. In the Operation box, notice that Modify, Repair, and Replace are listed (along with Coat and nonMaintenance). In the Operation box, select Repair, then select Run, and find that the Action Costs Tab median cost for joint repair is $61 per meter. In the Form box, The Action Costs tab reports costs of actions listed in the select Modular, then select Run, and find that the median cost NBMD Production_Table. The Filter and Run functions are for modular joint repair is $507 per meter (Figure 28). Change similar to other tables. An initial Run with all selection boxes set the selection in the Form box and then select Run to find that to Any yields median unit costs of $648 for actions with no for open joints the median repair cost is $8.51 per meter, and units, $292 for actions with each units, and $4.23 for actions per for strip seals the median repair cost is $268 per meter. square foot. The values have little meaning, since these are The Write Costs button creates a tab-text file of all element- median values for all California maintenance actions combined. level costs, and a list of median values of element-level costs. Select Bearing as the component, then Filter, then select Press the Write Costs button to open a file dialog box (Fig- `BMS Bearings--Clean' as the DOT action, then Run, and find ure 29). Select a directory and filename for the output file of Figure 25. Resources tab.

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57 Figure 26. Material manufacturer and product. Figure 27. Action costs tab.

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58 Figure 28. Element costs tab. Figure 29. Element-level cost file.