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Aerodrome Obstacle

Aerodrome Obstacle

Owned by Diego Cesa de Meira (Unlicensed)
Sept 05, 2019
2 min read

Description

Aerodrome – Obstacles are man-made structures (temporary or permanent) such as towers, buildings and cranes and certain natural obstacles (mountain peak) of significant height that may be hazardous to safe flight navigation.

Originator

  1. Nav Canada

  2. Transport Canada

Use Cases

  1. As an Aerodrome Inspector, I will be able to use the Obstacle data to identify structures which exceed height restriction so that proper NOTAM is issued accordingly.

Source(s)

Description

Source

Format

Date

Update Frequency

Metadata

Cost

Link

Remarks

Description

Source

Format

Date

Update Frequency

Metadata

Cost

Link

Remarks

Obstacle Data

Nav Canada

XLS

Current

Bi-monthly

N/A

$24K/year

Aeronautical Data Pack

Extrude structure height for 3D

Obstacle Data

Transport Canada

XLS

Current

Bi-monthly

N/A

Free

EGIS Data Folder: Aerodrome_Obstacle.gdb.zip (Contains all files)
Contact Evan Noden, Civil Aviation Inspector: Evan.Noden@tc.gc.ca

-Use preprocessed XLS file as provided.
-Extrude structure height for 3D

Significant Obstruction

NavCanada

PDF

Current

Bi-monthly

N/A

Free

EGIS Data Folder: Same as above
CFS

-Use preprocessed XLS file as provided.
-Extracted from CFS
Requires CFS subscription

Remarks

  1. NavCan provided this dataset to Transport Canada through a data sharing agreement.

  2. Contact Evan Noden (Evan.Noden@tc.gc.ca), Civil Aviation Inspector for more detail.

  3. NavCan dataset can also be purchased based on annual subscription. It is part of the Aerodrome Dataset package (Data Pack B).

  4. Contact NavCan
    email: Service@NavCanada.ca for more information.

  5. EGIS Data Folder: \\ncras382\Application Source Files\EGIS\Smartmap Files\

Process for EGIS integration

Significant Obstructions Extraction:

  1. Extract pages with Significant Obstructions in CFS and export as XML 1.0

  2. In FME, read XML file as Text and parse each line to extract the following:
    . Location
    . Elevation ASL
    . Elevation AGL
    . Latitude
    . Longitude

  3. Output to XLS file.

XLS File:

  1. XLS can be integrated directly into ArcMap and ArcGIS.

  2. In FME, transform the Lat/Long to point.

  3. Output to KML, SHP or GDB as required

  4. Import into EGIS

Display Optimization:

  1. Sampled/thinned data (generated using data sampling technique) and Significant Obstructions are displayed at small and medium scale. With scale transition, original data are displayed at large scale thus improve display performance reduce cluttering.

TC Smart Maps:

  1. Not all GIS applications can consume KML file directly due to its unique data structures such as networklinks, folders, models etc.

  2. Please contact Lawrence Chong, Digital Services Directorate for TC Smart Maps KML dataset and format translation.

  3. TC Smart Maps KML link: \tc.gc.ca\tcgis\GISData\Google Mashup\Aerodrome\Obstruction\Aerodrome-Obstruction.kmz

Customization:

  1. Schema transformation: As required

  2. Denormalization: Not required

  3. Value coding: Not required

  4. Attribute renaming: As required to improve readability

  5. Attribute removal: Not required.

  6. Geoenrichment: Feature symbolization is recommended to improve visualization

  8. Format translation: Not required

  9. Language translation: French version not available

  10. Update frequency: As identified