HOMEWORK 5, DUE Tuesday, October 9, 2001
Create and Edit New GIS datasets for Alachua Co. Regional
Airport
- In
ArcCatalog:
- Create
a new ArcInfo Workspace on your H:/ drive called hwork5
- Copy
the airprts_rds coverage from
K:\homeworks to your new hwork5 workspace.
- In the
hwork5 workspace create three new coverage’s (use the airprts_rds coverage
as a template for defining projections):
- 1ST
COVERAGE: Polygon coverage named:
air_perim – This will be the perimeter of the airport
grounds. Once you have created
the coverage double click it, then right click on polygon. In the properties box click the items
tab. This is where you will
create/edit the polygon attribute table for the new coverage. You would like to Add a new item
called NAME, the type will be Character.
- 2nd
COVERAGE: Line coverage named:
runway – This will be the runway centerlines. Add a new item the same way that
you did for the 1st coverage.
This coverage is a line coverage so you will need to add
an item to the arc attribute table.
Name the item CLASS, the type will be Character.
- 3rd
COVERAGE: Point coverage named: airprt_bldg – This will be
buildings within the airport perimeter.
Add and item called TYPE to the point attribute
table, again the type is Character.
Adding Imagery
- In
ArcMap:
- Locate
the Gainesville Regional Airport.
Add the air transportation facilities shapefile (airtrn) from the
state folder on the L:\drive. Find
Gainesville Regional.
- Adding
imagery:
- Navigate
to the Alachua/imagery/doqq/1m/doqq_index-1.shp located on the
L:\drive. This shapefile is an
index of all the digital aerial photos of Alachua County. Load the index and using your identify
tool on the main toolbar locate the two images that cover the airport,
load the images. You will use
these images as a background for creating your data.
Edit and Existing Dataset
- Add
the airprts_rds coverage.
Change the roads symbology so you can see them more easily against
the imagery, now use the imagery as a background to edit any of the
existing roads that my need corrections.
The roads should line up with the imagery. For example you may have to move,
delete, add, or trim features. Remember
to pay attention to the Task:
& Target: drop down
menu’s in the Editor toolbar.
If you are adding a feature the Task: should be Create
New Feature. If you are
editing an existing feature the Task: should be Modify
Feature. Once you edit
existing features add in the roads that lead to the airport terminal
building and wind around the parking area. (South end of the photo, roads
should connect with the entrance/exit road)
- Save
edits and stop editing.
Edit Your New Datasets
- Add
your air_perim coverage to ArcMap and begin editing.
- Using
the imagery, draw a new polygon feature that represents the perimeter of
the airport grounds. Use the tree
line to estimate this area.
- Add
“GAINESVILLE REGIONAL AIRPORT” to the NAME field in the air_perim
attribute table.
- Save
edits and stop editing.
- Add
your runway coverage to ArcMap and begin editing.
- Using
the imagery draw new line features that represent the runway centerlines
seen in the photo.
- Identify:
One primary runway (thickest pavement), along side the primary
runway should be one taxiway, then one secondary runway, and
two connector runways.
Update the runway attribute table item CLASS to reflect
these 5 features into the four class types.
- Save
your edits and stop editing.
- Add
your airprt_bldg cover to ArcMap and begin editing.
- Using
the imagery, draw a new point feature that represents buildings found
within the airport perimeter.
- Add a
minimum of five buildings; one must be the terminal building. Update the table item TYPE for
each building. For the terminal
point, make TYPE = “TERMINAL”, for the others just make TYPE = “STORAGE”
- Save
your edits and stop editing.
Create a Map
- Create
a quick map that shows the aerial photo with your new data on top. Make sure the lines are visible against
the imagery. Change the symbology
of your data layers so that all of the different items in each layer are
easily identifiable.
- Add a
legend, North arrow, scale bar, title, and your name on the map.
- Save,
make a screen capture and email to Stanley.