California Department of Transportation
 

CALTRANS EARTH TECHNICAL INSTRUCTIONS

 

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INSTRUCTIONS

  • Caltrans Earth Tools

    REGISTER FOR UPDATES ON CALTRANS EARTH SERVICES

    Caltrans Earth is currently running via an API on a web browser.

    Current Web Browser Versions:
    •Google Chrome*
    •Internet Explorer 10+ (32 bit)
    •Flock 1.0+
    •Apple Mac OS X 10.5.0 and higher (Intel only)
    •Safari 3.1+
    •Firefox 3.0+
    •Aurora 13.0a2

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  • Using Google Earth Plugin

    Current Version: 7.1.2.2041
    To check to see if you have current version

    Operating system and browser requirements The Google Earth Plug-in currently supports the following operating systems:

    •Microsoft Windows (Windows Vista, Windows 7, and Windows 8)

    •Apple Mac OS X 10.5.0 and higher (Intel only)

    If you have a problem with installing the plug-in, it could be because you don't have admin rights on your computer, and you should contact your IT department to help you.

    The Google Earth Plug-in is currently available for the following web browsers:

    •Microsoft Windows (Windows Vista, Windows 7, and Windows 8)
    •Google Chrome*
    •Internet Explorer 10+ (32 bit)
    •Flock 1.0+
    •Apple Mac OS X 10.5.0 and higher (Intel only)
    •Safari 3.1+
    •Firefox 3.0+
    •Aurora 13.0a2 (not supported by Google)

    *If you are experiencing issues using the plugin with Google Chrome, please update to the latest version.

    Although the plugin and API may work correctly on other browsers that support extensions, these browsers are not officially supported by Google.

    At this time Caltrans Earth and Google Earth Plugin does not work on the iPad or Android Tablet browsers


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  • Caltrans Mapping Services

    Post Mile Lookup - To activate the postmile lookup tool check the box for the tool. The tool should deactivate when box is unchecked. When checked a menu box will appear with four choices. Click, Point, Line, and XY (Click is the default).

    • With Click, click on the map to find a Postmile. Clear Map button will clear the map of all results.

    • With Point, selection the information in the dropdowns. All information for a specific postmile is needed including the prefix or suffix (if there is a postmile location with a prefix or suffix on a route that has a number that is the same without, an inaccurate location will result), when all information is entered, and click the Validate button for results; Clear button will clear the form information; Clear Map will clear all the results on the map.

    • The menu for Line is similar with the Point menu, except there is a to and from location on a route. The postmiles can be in different counties along the same route, and click the Validate button for resultes; Clear button will clear the form information; Clear Map will clear all the results on the map.

    • With XY, enter a Latitude and Longitude location, and click the GET PM for postmile location; Clear Map will clear all the results on the map.


    Geodesic Measure - To activate the Geodesic Measure tool check the box for the tool. The tool should deactivate when box is unchecked. When checked a menu box will appear with the choice of results in feet (ft/ac) or meters (m/m2) (feet (ft/ac) is the default). Results will be either Length or Area depending on what you are measuring. When measuring and area, the Length will show the length of the last segment. To clear the map, click the Clear button.

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  • Working with the Table of Contents

    First you need to wait for the map to fully load. The Table of Contents lists of the Public Headings with a arrow on the left side. Click on the arrow to dropdown the layer list (when you click the arrow again, the layer list will close). All of the layers have a checkbox to activate when checked and deactivate when unchecked. When checked, you need to zoom into the map to view some of the layers. When the headings have the dropdown activated, to view other headings/layers, use the scroll on the menu.

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  • Viewing Metadata

    Click on the Layer's name label to bring up the metadata popup window that will include all available information for the layer including links to file type downloads.

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  • Viewing Item Description

    On the map, click on a layer's feature, and a popup window will appear with information pertaining to the line segment, polygon area, or point that is clicked.

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  • Navigating On The Map



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  • Planned Updates



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