A-B      C-E      F-L      M-P      Q-S      T-Z

Add Buffer to Selection One of two selection options in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. This tool allows the user to buffer the point(s), line, polygon, or selected features. For more information on the selection tools available in OnTheMap Version 4, please read How To Use the OnTheMap Selection Tools [PDF, 59KB].

Add Layer Selection One of two selection options in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. This tool allows the user to select an area by picking one or more features in a particular map layer. The user chooses the layer type (County, Places, Census Tract, etc.) from the drop-down box and then selects features in the map by clicking in (Points tool) or drawing a line or polygon across the boundaries of the desired features. For more information on the selection tools available in OnTheMap Version 4, please read How To Use the OnTheMap Selection Tools [PDF, 59KB].

Add Layer Type Row in the Analysis Settings and Report Settings tables that appears after an analysis has been completed. If the Add Layer Selection option is used to select the area of analysis, the layer type (i.e. Places, Counties, ZIP Codes, States) is listed in this row. This row will not appear the Add Layer Selection option was not used.

Add to initial Work/Home area One of three choices in the Analysis tab's Modify Work/Home Area from Step 2 option of Step 2a: Advanced Area Selection. This option merges a second (possibly noncontiguous) selection area with the initial selection area made in Step 2: Study Area Selection. This is a logical union. The combined area represents the new study area for the user-defined analysis.

Advanced Area Selection Step 2a in the Analysis tab. This optional step allows users to define a second selection area and use this new area to either a) limit the destinations from/to the first selection area (Create Paired Home/Work Area), or b) add, intersect, or subtract this area from the first selection area. The default choice is to skip this step and proceed with only the first selection area. Advanced Area Selection can only be accessed by clicking the "More" button at the top of Step 2 in the Analysis tab.

Advanced Buffer Size(s) Row in the Analysis Settings and Report Settings tables that appears if the Add Buffer to Selection option is used in Step 2a of the Analysis tab. The buffered radius (or radii) in miles used to create the Advanced Selection Area is listed in this row. The row will not appear if Step 2a of the Analysis tab is skipped or if the Add Buffer to Selection option is not used while selecting an area in Step 2a.

Advanced Buffer Type Row in the Analysis Settings and Report Settings tables that appears if the Add Buffer to Selection option is used in Step 2a of the Analysis tab. The buffer type (Simple/Ring, Donut, or Plume) is listed in this row. The row will not appear if Step 2a of the Analysis tab is skipped or if the Add Buffer to Selection option is not used while selecting an area in Step 2a.

Advanced Feature Name(s) Row in the Analysis Settings and Report Settings tables that appears if the Add Layer Selection option is used in Step 2a of the Analysis tab. The names of the selected features are listed in this row. The row will not appear if Step 2a of the Analysis tab is skipped or if the Add Layer Selection option is not used while selecting an area in Step 2a.

Advanced Layer Type Row in the Analysis Settings and Report Settings tables that appears if the Add Layer Selection option is used in Step 2a of the Analysis tab. The layer type (i.e. Places, Counties, Zip Codes, States) is listed in this row. The row will not appear if Step 2a of the Analysis tab is skipped or if the Add Layer Selection option is not used while selecting an area in Step 2a.

Advanced Selection Tool Row in the Analysis Settings and Report Settings tables that appears if Step 2a of the Analysis tab is used. The selection tool type (Points, Line, or Polygon) used to create the Advanced Area Selection is listed in this row. The row will not appear if Step 2a of the Analysis tab is skipped.

Age In Step 1: Data Settings of the Analysis tab, the set of Labor Market Segment options dealing with worker age. Select one of the three age ranges (30 or younger, 31 to 54, or 55 or Older) to create a map overlay and report showing only that segment of the labor force.

All Jobs See Total All Jobs in Report Terms.

All Private Jobs See Total Private Jobs in Report Terms.

All Workers The default parameter for the Labor Market Segments section of Step 1: Data Settings in the Analysis tab. When this option is selected, the analysis includes all segments of the labor force, as opposed to individual segments (e.g. age, earnings, or industry).

Analysis A tab in the control panel that allows users to perform Area Profile and Shed Analyses to produce map overlays and reports of where workers live and where people work. The Analysis tab has four steps through which users can select labor segments, study area(s), and types of analyses. In OnTheMap, the term analysis generally refers to a map overlay and report combination.

Analysis Settings A section of the Results tab that summarizes the choices made in the Analysis tab. This data also appears at the bottom of each report, where it is called Report Settings.

Animate A button in the Overlay Controls box of the Results tab. If multiple years were selected for an analysis, the user can use the OnTheMap application to display the overlays automatically in sequence. Next to the Animate button, users should choose one or both of the Points/Thermals check boxes to animate. The user should then click on the Animate button to start the sequence. Clicking on the Stop button will end the animation sequence. To speed the animation transitions, it is recommended that prior to animating the user should enable all years of the point and/or thermal overlays.

Area Profile Analysis One of two analysis types available in OnTheMap. The map overlay produced from this analysis displays the locations and distribution of workers employed in the selection area (Workplace Area) or living in the selection area (Home/Residential Area). A demographic profile of these workers appear in the accompanying report, called an Area Profile Report. This option is available in Step 3: Map Overlay/Report of the Analysis tab.

Area Profile Map Overlay The map overlay associated with the Area Profile Analysis, it is one of two map overlay types available in OnTheMap Version 4. The Area Profile Map Overlay displays the locations and distribution of workers (using points and thermals) employed in the selection area (Workplace Area) or living in the selection area (Home/Residential Area). This map is available by choosing the Area Profile Analysis option in Step 3: Map Overlay/Report of the Analysis tab.

Area Profile Report The report associated with an Area Profile Analysis, it is one of two report types available in OnTheMap. This report provides a demographic profile of workers employed in the selection area (Work Area Profile option) or living in the selection area (Home Area Profile option). The profile shows a breakout of workers by age, earnings, and industry groupings (2-digit NAICS sectors). Additionally, Quarterly Workforce Indicators (QWI) can appear at the bottom of this report, but only in analyses of a non-paired Workplace Area looking at All Workers of the labor force. The report is available by choosing the Area Profile Analysis option in Step 3: Map Overlay/Report of the Analysis tab.

Back One of three buttons used for navigating between the four steps in the Analysis tab. The Back button takes the user to the previous step of the Analysis tab.

Base Map A tab in the control panel that allows users to turn on or off specific map layers (County, Place, Census Tract, etc.) and their labels. See the Base Map help page for more details on using the Base Map tab. OnTheMap uses existing geographic data sources and definitions. In particular, the standard geographies are derived from the Census Bureau's TIGER/Line files. Additional information about TIGER geography may be found at http://www.census.gov/geo/www/tiger/index.html. Additionally, the U.S. Department of Labor's Employment and Training Administration (ETA) provides the definitions of specific workforce and economic development area, such as the Workforce Innovation in Regional Economic Development (WIRED) regions. LED collects the definitions of Workforce Investment Areas (WIA)/Workforce Investment Board (WIB) areas from partner states. For more information on individual layers, see the Table of Contacts for Geographic Sources.

Browser A generic term to describe computer software used to access Internet-based websites. Examples include Microsoft Internet Explorer, Netscape, and Firefox. OnTheMap is designed to perform equally well with multiple browsers. See System Requirements.

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Clear Overlays One of eight buttons in the top right corner above the map viewer. The Clear Overlays button clears from the map viewer all current map overlays, including Points, Thermals, Selection, and Selection Fill. This is equivalent to unchecking all the boxes in the Overlay Controls box in the Results tab. Users can turn these overlays back on by clicking the check boxes in the Overlay Controls box in the Results tab.

Clear Selection A button in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. Click on Clear Selection button to immediately clear the current selected area(s) from the map view.

Color Key Row in the Overlay Controls box of the Results tab. The primary color used to differentiate each year of data are displayed in this row (blue for 2008, red for 2007, green for 2006, orange for 2005, purple for 2004, black for 2003, and fuchsia for 2002).

Commute Shed Analysis A Shed Analysis displaying and reporting on where workers who live within the selected area are employed. A Commute Shed Analysis consists of both a Commute Shed Map and a Commute Shed Report. The option for selecting a Commute Shed Analysis is available in Step 3: Map Overlay/Report of the Analysis tab if Home/Residential Area is chosen in Step 1: Data Settings.

Commute Shed Map A Shed Analysis map showing where workers who live within the selected area are employed. The selection area (Home/Residence Area) is highlighted in the map. Employment locations and job concentrations appear as points and/or thermals in the map, depending upon the selected map viewing options.

Commute Shed Report A Shed Analysis report showing where workers who live within the selected area are employed. Workers' employment locations can be aggregated in up to three geographic "rollup" areas. The top ten (or top five if state is selected) employment areas are shown for each of the three rollup geographies selected, as well as the total number of resident-workers living in the selection area.

Control Panel The panel at the left-hand side of the OnTheMap Version 4 browser window. The control panel provides a series of tabs through which users can search for geographic features, control which map layers and labels are visible in the base map, and generate and control output of data analyses.

Create Paired Work/Home Area An option in Step 2a: Advanced Area Selection of the Analysis tab. This choice allows users to create a second selection area to limit by destination the group of workers under analysis. If Home/Residential Area is chosen in Step 1: Data Settings, users will select a Work area in Step 2a. If Work Area is chosen in Step 1: Data Settings, users will select a Home area in Step 2a. Both analysis types are available in Step 3: Map Overlay/Report of the Analysis tab, although now called Paired Work/Home Area Profile Analysis and Paired Labor/Commute Shed Analysis.

Data Settings Step 1 in the Analysis tab. Lets users select the type of study area (Home/Work), Year(s), Job Type, and Labor Market Segment for analysis.

Destination In the context of home-work pairings, the term destination refers to the other half of the home-work pairing from the origin. For example, if the origin is a home area, then the destination is a work area, but if the origin is a work area, then the destination is a home area. Regardless of whether the user selects Home or Work area in the Live or Work choice in Step 1: Data Settings, the destination is the area not selected. So in a Labor Shed Analysis, the destinations are home locations, and in a Commute Shed Analysis, the destinations are work locations. See the definition for Origin for more information.

Donut One of three buffer options available in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. This tool allows the user to use a selection area defined by inner and outer circles, with user-specified radii. The selection only includes the area between the two circles. For more information on the selection tools available in OnTheMap Version 4, please read How To Use the OnTheMap Selection Tools [PDF, 59KB].

Earnings In Step 1: Data Settings of the Analysis tab, the set of Labor Market Segment options dealing with worker earnings. Select one of the three earnings ranges ($1,250/mo or Less, $1,251/mo to $3,333/mo, or Greater than $3,333/mo) to create a map overlay and report showing only that segment of the labor force.

End Radius A required field when using the Plume buffer option in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. The end radius is specified by the user in miles. The Plume selection area will be increasingly buffered from the start radius to the ends radius along the drawn line. Radii with decimal places are allowed, although the minimum zoom scale in the map viewer will limit the practical resolution.

Entry Page The initial webpage that is viewed upon entry of OnTheMap Version 4. The Entry Page gives access to both the mapping application and text-only tool, as well as to documentation and to other helpful links.

Excel (XLS) One of the Report Output Options available in the middle of the Results tab. Clicking this link will open the report in a Microsoft Excel spreadsheet or allow the user to save the spreadsheet file on his/her local computer for later viewing.

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Feature Name(s) Row in the Analysis Settings and Report Settings tables that appears after an analysis has been completed. If the Add Layer Selection option is used to select the area of analysis, the names of the selected features are listed in this row. This row will not appear if the Add Layer Selection option was not used.

Hide/Show Tabs One of eight buttons in the top right corner above the map viewer. This button allows users to toggle the control panel (the 4 tabs on the left side of the browser window) in and out of view. Each time this button is clicked, the map viewer will refresh to fill the available space with as much of the map view as possible.

Home/Residential Area One of two choices for the Live or Work option in Step 1: Data Settings of the Analysis tab. Choosing this option will allow users to perform a Home Area Profile Analysis or a Commute Shed Analysis.

Home Area Profile Analysis See Area Profile Analysis.

Home Area Selection See Study Area Selection.

Identify One of eight buttons in the top right corner above the map viewer. Use the Identify tool to view details about individual points shown in the points overlay. After a completed analysis, click the Identify button, then immediately click in the center of a point. The block, tract, or county code as well as a job count will appear in a popup box. The Identify tool must be reclicked each time a point is identified.

Import From Four import tools are available in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab: GPS Coordinate Import (latitude/longitude), Shapefile Import, KML/KMZ Import, and Address Import. Click on the appropriate icon/name under Selection Tools to pop-up the tool interface, then follow the instructions to import your existing spatial data. For more information on the import tools, please visit the Import Tools tutorial [PDF, 37KB].

Industry Class In Step 1: Data Settings of the Analysis tab, the set of Labor Market Segment options dealing with industry classification. Select one of the three industry groupings (Goods Producing, Trade, Transportation, and Utilities, or All Other Services) to create a map overlay and report showing only that segment of the labor force. The 2-digit NAICS codes associated with each industry class are as follows: Goods Producing includes NAICS 11, 21, 23, and 31-33, Trade, Transportation, and Utilities includes NAICS 42, 44-45, 48-49, and 22, and All Other Services includes the remaining twelve 2-digit NAICS industry sectors. See the U.S. Census Bureau's documentation on NAICS for more information on these industry sectors.

Inner Radius A required field when using the Donut buffer option in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. The inner radius must be specified by the user in miles. Radii with decimal places are allowed, although the minimum zoom scale in the map viewer will limit the practical resolution.

Intersect with initial Work/Home area One of three choices in the Modify Work/Home Area from Step 2 option of Step 2a: Advanced Area Selection of the Analysis tab. This option selects the region covered by both the first selection area made in Step 2: Study Area Selection and the second selection area made in Step 2a. This is a logical intersection. The overlapping area represents the full study area for the user-defined analysis.

Job Type An option in Step 1: Data Settings of the Analysis tab to select the type of jobs that will be used for either an Area Profile Analysis or a Shed Analysis. The four types of jobs are All Jobs, Primary Jobs, All Private Jobs, and Private Primary Jobs. See Report Terms for full definitions.

Label The heading for a list of checkboxes in the Base Map tab. The check boxes under this heading control the labels of each layer. As soon as a check box is checked or unchecked by the user, the OnTheMap application immediately loads the layer's labels or removes them from the map viewer. If the checkbox is grayed out, then the option is not available. If a layer name is grayed and italicized, then it is not available for viewing at the current zoom level.

Labor Market Segments An option in Step 1: Data Settings of the Analysis tab to select one of nine labor segments (or all segments) to limit the scope of jobs in an Area Profile Analysis or Shed Analysis. See Age, Earnings, and Industry Class segment definitions for more information.

Labor Shed Analysis A Shed Analysis displaying and reporting upon where workers who are employed in a user-defined selection area live. A Labor Shed Analysis consists of both a Labor Shed Map and a Labor Shed Report. The option for selecting a Labor Shed Analysis is available in Step 3: Map Overlay/Report of the Analysis tab if Workplace Area is chosen in Step 1: Data Settings.

Labor Shed Map A Shed Analysis map showing where workers who are employed in a user-defined area live. The selection area (the area in which workers are employed) is highlighted in the map. The locations of residences appear as points and/or thermals in the map, depending upon the selected map viewing options.

Labor Shed Report A Shed Analysis report showing where workers who are employed in a user-defined area live. Workers' residence locations can be aggregated in up to three geographic "rollup" areas. The top ten (or top five if state is selected) employment areas are shown for each of the three rollup geographies selected, as well as the total number of workers employed in the selection area.

Layer The heading of a list of checkboxes in the Base Map tab. The check boxes under this heading control the graphical representations (points, lines, outlines, or filled areas) of each layer. As soon as a check box is checked or unchecked by the user, the OnTheMap application immediately loads the layer to or removes it from the map viewer. If the checkbox is grayed out, then the option is not available. If a layer name is grayed and italicized, then it is not available for viewing at the current zoom level.

Legends (Job Type) A section of the Results tab that displays the legends for the Point and Thermal Overlays.

Line One of four Selection tools available in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. Using the mouse, draw a line by dragging the mouse across the map viewer. The drawn line can then be used to select features (Add Layer Selection) it crosses in the map viewer, or buffered using the Add Buffer to Selection option.

Link to Me One of eight buttons in the top right corner above the map viewer. When this button is clicked, all of the information currently displayed in the map viewer and control panel will be sent and stored in the URL of the user's web browser. This allows the user to save or share their analysis by simply copying and pasting this new URL.

Live or Work An option in Step 1: Data Settings within the Analysis tab, which allows users to select the type of study area upon which the analysis will focus. The two options are "Workplace Area" and "Home/Residential Area". If "Workplace Area" is selected, then the user will be able to perform Work Area Profile Analyses or Labor Shed Analyses. If "Home/Residential Area" is selected, then the user will be able to perform Home Area Profile Analyses or Commute Shed Analyses.

Load One of eight buttons in the top right corner above the map viewer. Use the Load tool to browse for a previously saved ".otm" settings file. Opening this file will load the Analysis tab in current OnTheMap session with the settings and selection area from a saved OnTheMap session. Additionally, the map viewer will zoom to the extent/location saved in the settings file. See the definition for Save for more information. Note: Users must click Go! in Step 3 of the Analysis tab to run the analysis after loading a saved ".otm" file, as the settings file does not populate the Results tab.

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Map Precision A tool located at the bottom of Step 3: Map Overlay/Report of the Analysis tab that allows the user to select the precision of the point and thermal overlays generated from a completed analysis. Options include Automatic, Block, Tract, County, or No Map. The default setting is Automatic, which determines the map precision based on the number of Census Blocks selected in the analysis (origin). If less than 40,000 blocks are selected, the automatic map precision will display each point as a Census Block, if between 40,000 and 400,000 blocks are selected, each point will represent one Census Tract, if between 400,000 and 2,000,000 blocks are selected, each point will represent one county, and for analyses with greater than 2,000,000 blocks selected, no map overlays will be displayed. Each of the precision levels produce slightly different map overlay outputs, and users are encouraged to find the precision level that best illustrates the data in the map viewer. Block-level precision will provide the most spatial detail but county-level precision (or the No Map option) will generate in the shortest amount of time.

Map Overlay/Report Step 3 in the Analysis tab. Lets users choose the type of analysis (Area Profile Analysis or Shed Analysis) and the geographic rollup layers if the Shed Analysis option is selected.

Map Viewer The main window in the OnTheMap application. The map viewer shows both the base map (user-chosen layers and labels) as well as the map overlays (points, thermals and selection area) generated by users' analyses.

Modify Line/Polygon One of five Selection tools available in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. Modify Line/Polygon is a method for editing an already drawn line or freehand polygon. Activate the Modify Line/Polygon radio button, and then left-click on the line or in the polygon to view the existing vertices. Two types of vertices appear along the drawn line or outline of the freehand polygon: a) solid circles that form the outline of the line, and b) the semi-transparent circles in between each solid circle that are potential new vertices of the line or polygon. Using your mouse, drag and drop vertices, delete vertices with the delete or D key, or click on one of the semi-transparent circles/vertices to add it to the line or polygon. Left-click outside of the line or polygon in the map viewer to save changes.

Modify Work/Home Area from Step 2 An option in Step 2a: Advanced Area Selection of the Analysis tab that allows users to select an additional area used to modify the original selection performed in Step 2. There are three options for having the second area selection modify the first, Add to initial Work/Home area (makes both polygons the selected area), Intersect with initial Work/Home area (makes the intersection of the two polygons the selected area), and Subtract from initial Work/Home area (removes any portion of the first selection area that overlaps with the second selection area).

More One of three buttons used for navigating between the four steps in the Analysis tab. The More button navigates users to Step 2a: Advanced Area Selection from Step 2: Study Area Selection. Note: Step 2a is not accessible from Step 3, users must return to Step 2 and click the More button in order to access Step 2a.

Navigation One of five Selection tools available in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. This option allows users to pan and zoom within the map viewer before selecting an area for analysis. Note: In order to select an area for analysis, users must change the Selection Tool radio button to Point(s), Line, or Polygon (Freehand).

Next One of three buttons used for navigating between the four steps in the Analysis tab. The Next button takes the user to the following step in the Analysis tab.

North Arrow An element in the top right corner of the map viewer that shows the approximate direction of North for the current center of the map viewer based upon an USA Contiguous Albers Equal Area Conic projection of the geographic data.

Origin In the context of home-work pairings, the term origin refers to the initial selection area. In an Area Profile Analysis, worker or home locations within the origin are mapped, while in a Shed Analysis, destinations from the origin are mapped. If Home is selected in the Live or Work option in Step 1: Data Settings, then the origin is a Home area; if Work is selected in the Live or Work option in Step 1: Data Settings, then the origin is a Work area. Therefore, in a Labor Shed Analysis the origin is a work location, and in a Commute Shed Analysis the origin is a home location. See the definition for Destination for more information.

Outer Radius A required field when using the Donut buffer option in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. The outer radius must be specified by the user in miles. Radii with decimal places are allowed, although the minimum zoom scale in the map viewer will limit the practical resolution.

Output Options A series of links in the Results tab. These links let users access and download reports and overlays in several different file formats/layouts. Reports are available as HTML, Excel (XLS), and Portable Document Format (PDF). The type of report available depends upon data options selected by the user in the Analysis tab. Point, thermal, and selection area overlays are available in shapefile (SHP) and KML (Google Earth) formats. The list of Census Blocks that composed the selection area are also provided in database file (DBF) format.

Overlay Refers to the visual data that sits on top of the base map layers in the map viewer. Users generate map overlays by completing the required steps in the Analysis tab. OnTheMap overlays include points, thermals, selection outlines, and selection fills.

Overlay Controls A section of the Results tab in the control panel. This section allows the user to control which overlays (points/thermals) are turned on in the map as well as to control highlighting the selection area(s). This section also allows users to start and stop a longitudinal animation of the overlays for the selected years.

Paired Area An option in Step 2a: Advanced Area Selection of the Analysis tab. This choice allows users to identify a second selection area to limit by destination the group of workers under analysis. The resulting overlays and reports will display only those jobs that share the selected home and work areas.

PDF Portable Document Format. A file format that permits reports to be saved and printed just as they appear in the application. Users cannot change the contents of PDFs unless they have specific software that provides this capability. U.S. Census Bureau's PDF page

Plume One of three buffer options available in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. This tool creates a selection area defined by a user-drawn line. Users select a start and end radius to buffer each end of the line. The application interpolates the selection area by gradually increasing the size of the buffer between the beginning and end of the line. This buffer option is not available with the Point(s) or Polygon selection tools, or the Add Layer Selection option. For more information on the selection tools available in OnTheMap Version 4, please read How To Use the OnTheMap Selection Tools [PDF, 59KB].

Point(s) One of five Selection tools available in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. The Point(s)tool produces a selection area by using the mouse to create points in the map viewer. The points are then used to select features (Add Layer Selection) that contain the points, or buffered using the Add Buffer to Selection option.

Points A display options in the Results tab by which users can show points in a map overlay that represent workers' employment areas or residence areas. Each point represents a single census block, census tract, or county depending upon the chosen map precision. The size and color of each point is based upon the number of jobs located in that block, tract, or county -- with the worker ranges shown in the Legends in the middle of the Results tab. Census blocks (or tracts/counties) with no workers/residents will not display a point.

Polygon (Freehand) One of five Selection tools available in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. This tool allows users to freehand draw an arbitrary polygon in the map viewer and use the aggregated Census blocks within that polygon as the selection area. If desired, the area can then be used to select features (Add Layer Selection), or buffered using the Add Buffer to Selection option.

Previous One of eight buttons in the top right corner of the map viewer. This button navigates the map viewer back to the previous extent of the map prior to the most recent pan or zoom action.

Primary Jobs See Total Primary Jobs in Report Terms.

Print Map One of eight buttons in the top right corner of the map viewer. This button allows users to create a PDF document or HTML page displaying the current image in the map viewer. Users are prompted to select a title and choose between PDF and HTML formats. The resulting map image will be displayed in the browser or downloaded to the user's computer based on the browser settings.

Private Primary Jobs See Total Private Primary Jobs in Report Terms.

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Quarterly Workforce Indicators (QWI) A set of data provided for Work study areas only. QWIs include job shifts, new hires, separations, and average earnings. QWI data appears only on Work Area Profile reports. See the documentation links at QWI Online for more information.

Query ID Row in the Analysis Settings and Report Settings tables that appears after an analysis has been completed. This unique identifier is generated for each completed analysis, and references the combination of user-selected data settings.

Radius A required field when using the Simple/Ring buffer option in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. The radius around the drawn point(s)/line/polygon must be specified by the user in miles. Radii with decimal places are allowed, although the minimum zoom scale in the map viewer will limit the practical resolution.

Report Generation Date Row in the Analysis Settings and Report Settings tables that appears after an analysis has been completed. The date and time when the analysis was generated, as well as the version of OnTheMap is listed in this row.

Report Settings A section at the bottom of each OnTheMap report that summarizes the choices made in the Analysis tab. This data also appears at the bottom of the Results tab, where it is called Analysis Settings.

Report Title A text box in Step 3: Map Overlay/Report of the Analysis tab that allows users to specify their own title for their analysis. The title will appear at the top of the Results tab and in the report and overlay outputs.

Results The final tab in the control panel that appears after a completed analysis. The Results tab contains the Overlay Controls, Output Options, Overlay Legends, and Analysis Settings. These features allows users to control which overlay (points/thermals) are displayed on top of the base map layers, select reports and overlays for download, view legends for the displayed points and thermals, and view a recap of the chosen settings.

Reuse Earlier Selection A selection option available in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. This option permits the user to reuse up to five previous selection areas created during the current OnTheMap session. With the Reuse Earlier Selection option, users can run a series of maps and reports without having to redraw or reselect the geographic area. For more information on the selection tools available in OnTheMap Version 4, please read How To Use the OnTheMap Selection Tools [PDF, 59KB].

Rollups An option when the user selects Shed Analysis (Commute/Labor) in Step 3: Map Overlay/Report of the Analysis tab. Users specify three geographical aggregations for the destination of workers whose home area was selected first in a Commute Shed Analysis or whose work area was selected first in a Labor Shed Analysis. The Commute/Labor Shed report shows the top ten destinations within each selected rollup layer, except for States, which shows only the top five destinations.

Save One of eight buttons in the top right corner of the map viewer. Use the Save tool to store the current OnTheMap settings in a file on your local computer. This file (saved as a ".otm" filetype) saves all Analysis tab settings including the selection area, and the current location in the map viewer. See the definition for Load for more information. Note: Users must click Go! in Step 3 of the Analysis tab to run the analysis after loading a saved ".otm" file, as the settings file does not populate the Results tab.

Scale A scale bar located in the bottom left corner of the map viewer indicating distances (in miles and kilometers) on the map. The scale changes as the user zooms in and out of the map viewer.

Search A tab in the control panel, which provides a tool for quickly finding a specific area by matching a user-provided name. The Search tool will try to match on any of the supported geographical layers (Places, Counties, Metropolitan/Micropolitan areas, ZIP Codes, etc.). The Search tool can match all or part of a name and if no matches are found, it will return results that "sound like" the search term within a reduced set of commonly used layers. Users can limit the search to a specific geographic layer by selecting it in the dropdown box. The default setting searches all geographic layers. Results are listed at the bottom of the Search tab. Clicking on a name in the result will zoom the map viewer to that area, and automatically select this area as the area for analysis in Step 2 of the Analysis tab. The Search tool is also available from the OnTheMap Entry Page. (Note: Colloquial or neighborhood names may not be included in the supported geographies.)

Search All Names The default setting in the drop-down box of the Search tab. With this setting active, the user-entered text will be matched against the names of the geographic base map layers available in OnTheMap. Layers that are supported include: States, Counties, Places (Cities, CDPs, etc.), Military Bases, One-Stop Career Centers, Zip Codes (ZCTA), Metropolitan/Micropolitan Areas (CBSA), Workforce Investment Areas (WIA), County Subdivisions, WIRED Regions (Gen. 1, 2, and 3), 110th Congressional Districts, Census Tracts, Traffic Analysis Zones (TAZ) Unified/Elementary School Districts, Secondary School Districts, State Legislative Districts (Upper), State Legislative Districts (Lower), Alaska Native Regional Corp. (ANRC), Tribal Lands, Tribal Subdivisions, NCES Schools, Airports, Greenspace, Amtrak Stations, and Universities and Colleges. To search for geographic features in one layer type, select the layer type from the drop-down box when searching. Census Block Groups are not currently searchable in OnTheMap. Users are encouraged to search for the Census Tract, and then find the desired Block Group by activating the layer in the Base Map tab.

Search Results The list of results generated from using the Search tool. Any or part of the user-entered name is matched against all of the supported geographic layers (Places, Metropolitan/Micropolitan areas, ZIP Codes, etc.). Results are grouped by layer type, with the most commonly used geographic layers near the top. If no matches are found, the Search tab will attempt to return results that "sound like" the search term within a reduced set of commonly used layers. For more information, see the definition for Search. For details about the geographic names that appear in the Search Results, see the Table of Contacts for Geographic Sources.

Selected Block Count Row in the Analysis Settings and Report Settings tables that appears after an analysis has been completed. The value is the exact number of Census Blocks selected as the study area in Step 2 of the Analysis tab. Click on the DBF (Selection Area Blocks) output option in the Results tab to download the exact list of selected blocks.

Selection Area A user-defined geographic area that serves as the basis for the analysis map overlays and reports. This area of analysis is defined by using one of the selection tools (Points, Line, or Polygon) and possibly one of the selection options (Add Layer Selection or Add Buffer to Selection). A selection area outline created in Step 2 is highlighted red in the map viewer, while a selection area created in Step 2a is highlighted in green. After a completed analysis, the selection area overlay can be downloaded as a shapefile or KML feature in the Output Options section of the Results tab.

Selection Fill An option in the Overlay Controls box of the Results tab. This option displays/removes a cross-hatched fill overlay for the selection area(s). The selection fill overlay is inactive by default.

Selection Outline An option in the Overlay Controls box of the Results tab. This option displays/removes from display the outline of the selection area(s). For a standard analysis (Step 2a was skipped), the area of analysis outline is dark orange with a yellow center. In a Paired Area analysis, the first selection area (the origin) outline is dark orange with a yellow center, and the second selection area (the destination) is green with a yellow center. In analyses where one of the Modify Work/Home Area from Step 2 options is used, the area of analysis outline is yellow with a dark orange center, and any unused portion created from an Intersection or Subtraction option is dark blue with a red center. The selection outline overlay can be downloaded as a shapefile or KML feature in the Output Options section of the Results tab.

Selection Tool Row in the Analysis Settings and Report Settings tables that appears after an analysis has been completed. The selection tool type (Point(s), Line, or Polygon) used to create the Study Area Selection is listed in this row.

Selection Tools A set of four tools available in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. One of three tools, Point(s), Line, or Polygon (Freehand) must be used to create the selection area to be used as the area for analysis. The other two tools, Navigation and Modify Line/Polygon, can be used to pan/zoom the map viewer or alter the shape of an existing selection area.

Shed Analysis One of two analysis types available in OnTheMap. The overlay map produced from this analysis displays the destination of workers who are either employed or live in the selected area. Shed Analyses include both Commute Shed Analyses and Labor Shed Analyses, which are differentiated by whether a home or work location is the Study Area Selection. A Shed Analysis includes both a Shed Map and a Shed Report. The option for selecting a Commute/Labor Shed Analysis is available in Step 3: Map Overlay/Report of the Analysis tab. The choice between Labor Shed and Commute Shed is determined by the Live or Work option in Step 1: Data Settings in the Analysis tab.

Shed Map The map associated with the Shed Analysis, it is one of two map types available in OnTheMap. Shed map overlays display the destination of workers who are either employed in (Labor Shed Map) or live in (Commute Shed Map) the selected area. This map is available by choosing the Commute/Labor Shed Analysis option in Step 3: Map Overlay/Report of the Analysis tab. The choice between Labor Shed and Commute Shed is determined by the Live or Work option in Step 1: Data Settings in the Analysis tab.

Shed Report The report associated with a Shed Analysis, it is one of two report types available in OnTheMap. This report provides a geographic breakdown of destinations for workers employed in the selection area (Labor Shed Report) or workers living in the selection area (Commute Shed Report). The geographic destinations are summarized in three "rollup" layers. The rollup layers are user selectable, and can include any of the supported geographies (Counties, Places (Cities, CDPs, etc.), Census Tracts, ZIP Codes, etc.). The choice of rollup layers is made in Step 3: Map Overlay/Report of the Analysis tab, when selecting the Commute/Labor Shed Analysis Option. The choice between Labor Shed and Commute Shed is determined by the Live or Work option in Step 1: Data Settings in the Analysis tab.

Simple/Ring One of three buffer options available in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. This option allows the user to draw a point or line and select the area within a specified distance of the point(s), line, or polygon. A buffered point will create a circle-shaped selection area, while a buffered line selection area will depend on the shape of the drawn line. A buffered polygon selection area will increase in size in all directions by the entered radius. Buffer distances are measured in miles. For more information on the selection tools available in OnTheMap Version 4, please read How To Use the OnTheMap Selection Tools [PDF, 59KB].

Start Radius A required field when using the Plume buffer option in Step 2: Study Area Selection and Step 2a: Advanced Area Selection of the Analysis tab. The starting radius must be specified by the user in miles. The Plume selection area will be increasingly buffered from the start radius to the ends radius along the drawn line. Radii with decimal places are allowed, although the minimum zoom scale in the map viewer will limit the practical resolution.

Study Area Selection Step 2 in the Analysis tab. Lets users define a primary selection area for either an Area Profile Analysis or a Shed Analysis. If the Live or Work choice from Step 1 is "Home", then the Study Area Selection will be a Home area. If the Live or Work choice is "Work", then the Study Area Selection will be a Work area. Use one of the available Selection Tools and selection options to select the home or work area for analysis.

Subtract from initial Work/Home area One of three choices in the Modify Work/Home Area from Step 2 option of Step 2a: Advanced Area Selection of the Analysis tab. This option selects only the region of the first selection area (from Step 2: Study Area Selection) that is not covered by the second selection area made in Step 2a. The remaining non-overlapping area from the first selection is the final selection area.

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Text-Only Mode A text-only version of the application accessible from the "Jump to" dropdown on the OnTheMap Entry Page. This utility permits users to produce Shed and Area Profile Reports for any supported geographical layer without having to interact with the map viewer.

Thermals A display option in the Results tab by which users can show job density/concentration in an overlay that represent workers' employment or residence areas. The shaded thermal clusters use a spatial modeling and area averaging technique that calculates workers per square mile across adjacent blocks and neighborhoods. Thermals have several levels of shading and the job count ranges for the shadings are shown in the Legends section of the Results tab. Thermals can be generated at three levels of spatial detail based upon the Map Precision settings in Step 3: Map Overlay/Report of the Analysis tab. The three levels are census block, census tract, or county. Thermals based on census blocks provide the most detail but thermals based upon counties will generate in the shortest amount of time.

Work Area Profile Analysis See Area Profile Analysis.

Work Area Selection See Study Area Selection.

Workplace Area One of two choices for the Live or Work option in Step 1: Data Settings of the Analysis tab. Choosing this option will allow users to perform a Work Area Profile Analysis or a Labor Shed Analysis.

Year(s) An option in Step 1: Data Settings in the Analysis tab to select the year(s) of data that will be displayed in the map overlay and report. Only the latest three years of data will be mapped in the Results tab. Most states have data available for all seven years (2002, 2003, 2004, 2005, 2006, 2007, and 2008), with the exception of Arizona (missing 2002, 2003, and 2004), Mississippi (missing 2002 and 2003), Arkansas (missing 2002), and North Carolina (missing 2008). States and territories not currently included on OnTheMap Version 4 are Connecticut, New Hampshire, the District of Columbia, Massachusetts, Puerto Rico, and the U.S. Virgin Islands.

Zoom Ladder Tool Located in the top left of the map viewer, the zoom ladder allows users to control precisely their zoom level by clicking directly on the ladder or on the '+' and '-' buttons at either end. Users can also click on any of the four direction arrows above the zoom ladder to pan the map in that direction.

Zoom to Selection A link in the Overlay Controls box of the Results tab that - when clicked - zooms to map viewer to the selection area(s).

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Is a term or a definition missing? Send an email with suggested improvements or questions to CES.Local.Employment.Dynamics@census.gov.