.
Doc 7030 Regional Supplementary Procedures
-EUROCONTROL documents :
. Guidelines for the Implementation of the Automatic ATS Voice Communication Network.
-Report of the Sixth ICAO European Mediterranean Regional Air Navigation Meeting.
Attributes for controller-to-controller communication facilities should be common and agreed for use in the whole ECAC area. They have to be defined clearly and unambiguously, so as to avoid any possible confusion. Therefore, in support of applying radar separation minima equal to or more than 3 NM on the one hand and less than 3 NM on the other hand, direct, respectively instantaneous voice communication facilities are required.
It remains however the prerogative of a State to implement alternative solutions of an equal level of safety.
7.2 Definitions and applicability
7.2.1 Direct Controller-Controller Voice Communication (DCCVC):
7.2.1.1 Definition
DCCVC is defined as a two-way direct ground/ground voice communication system which allows for a communication to be established between radar controllers within 2 seconds in 99% of the time, supplemented by the ability to interrupt, if necessary, calls of a less urgent priority using the same channel.
Note : The expression” a communication to be established” should be understood as the setting up of a connection, the activation of a technical circuit, between the calling and the receiving controller. It does not include the content of a message, nor does it require any action by the receiving controller.
7.2.1.2 Applicability DCCVC
Within the scope of the Applicability Tables (Cf. Par. 8), the provisions of DCCVC shall be assigned as a minimum requirement of communications systems needed to support radar transfers employing radar separations of not less than 3 NM.
A direct trunk between two ATS units should have sufficient capacity to ensure that only in exceptional circumstances traffic have to be routed via alternate routes. If a call is switched via the alternate route the signalling sequence should not exceed 5 seconds and an individual SSR code should be used for the transfer of radar identity.
7.2.2 Instantaneous Controller-Controller Voice Communication (ICCVC):
7.2.2.1 Definition
ICCVC is defined as a two-way direct ground/ground voice communication system for non physically adjacent controllers, which allows for a communication to be established between them within 1 seconds or less in 99% of the time.
7.2.2.2 Applicability ICCVC
Within the scope of the Applicability Tables, the provisions of ICCVC shall be assigned as a minimum requirement of communications systems needed to support radar transfers and transfers of control/communication on the final approach track, employing separations of less than 3 NM
It is emphasised that no acceptance delay at the receiving end of the communication system should be authorised. In other words no key activation should need to be initiated in order to accept an incoming call. ICCVC refers, for example, to hot lines or intercom type communication devices, but switching systems compliant with the required time parameters qualify just as well.
7.3 Service availability of commercial circuits
An overall service availability of not less than 99.99 % of the time is required in support of ground/ground voice communications.
8. APPLICABILITY TABLES FOR RADAR SEPARATION MINIMA
Seven CIP Objectives - 3.4.1 to 3.4.7 - are specifically concerned with the application of radar separation minima in support of different operational ATC functions. The various implementation requirements are identified below against the relevant objective.
8.1 CIP Objective 3.4.1. Radar separation within one en-route sector
a) Radar, processing and display systems with performance, quality and availability standards equal to, or better than, the maximum acceptable risk and which permit the ATS authority to approve the use of 5NM, 10NM or any other Radar Separation Minima within the appropriate sector airspace,
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