TOD Implementation Status

Tunisia

TERRAIN AND OBSTACLE DATASETS (TOD) WORKSHOP

Algiers, Algeria 30 October 2019

PLAN

OACA Presentation

Regularity framework

TOD Current Status

Pogress in TOD

OACA Presentation

Regularity framework Aeronautical Code

Decree 2007-1115 of 07/05/07 Laying down the burdened zones by aeronautical constraints of release and beaconing related to the aerodromes intended for the public air traffic and at some aerodrome, for limited use.

Act of 10/05/07 Laying down the model of beaconing of the obstacles considered dangerous for the air navigation.

Act of 10/05/07 Laying down the maximum limit height of the obstacles inside and outside the burdened zones with aeronautical constraints.

Order of the Minister of Transport N° 60 dated 09/02/17 Laying down the modalities of controlling the obstacles and the establishment of aeronautical alternation plans for aerodromes opened to public air traffic.

Area 1 Terrain dataset

Currently Tunisia doesn’t provide a terrain

dataset for Area 1.

The flight procedure designers of OACA use a

DTM of the Tunisian territory with a resolution of

90 m in ASCII format (since 2001) .

This DTM doesn’t comply with the eTOD

requirements.

TOD Current Status

Area 1 Obstacle dataset

Currently Tunisia publishes En-route obstacle data in the

Tunisian AIP in ENR 5.4.

These data don’t comply with the eTOD requirements.

Area 2 Terrain & Obstacle dataset

Currently Tunisia doesn’t provide a terrain dataset for Area 2 of

its airports.

flight procedure designers have a digital database of obstacles

in the vicinity of airports (the data originators: obstacle owners

or surveyors)

some obstacles entities needs to be improved by additional

attributes

Pogress in TOD

Understanding of ICAO requirements related to obstacle data collection.

Creation of obstacle collection surfaces for the airport.

Development of a comparative study between OLS and eTOD surfaces

Extraction of obstacle data by photogrammetric method from aerial

photos available at the CNCT

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Scope of the pilot project

the perimeter has been limited

to the South East zone of Tunis

Carthage International Airport

It covers an area of 145 km² :

• area 2a :2.1km²

• area 2b : 22.9km²

• area 2c : 119.km²

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The aerial photography consulted as part of our

study are the result of a campaign of aerial

photography by a "DMC III" camera and are

characterized by :

• Sensor type: Digital

• Year of acquisition: 2016-2017

• Number of images: 7760

• Raw spatial resolution: 10 cm

• Average flight height: 1000m

• Longitudinal overlaps: 60%.

• Side overlaps: 20%

Aerial photography ial photography aerial photography

Bizerte

Nabeul

Baja

Zaghouan

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Annexe 15 Surfaces

Area 2a

Area 2bArea 2c

Area

2a

Area

2b

Area

2c

RWY 11/29 RWY 01/19

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Annexe 14 Surfaces

13

Modelisation 3d

14

OD

CS R

WY

01/19

OD

CS R

WY

01/19

OLS

Vecteur vers TIN TIN vers Raster

Vecteur TIN Raster

Surface de collecte

globale

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Data Collect

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Thank you for your attention