Intelligent transport systems - eSafety - Part 3: eCall for Coaches and buses

In respect of 112-eCall (operating requirements defined in EN 16072), this document defines additional specifications for the provision of eCall for coaches and buses.
As with the existing provisions for eCall for Category M1/N1 vehicles, these are specified within the paradigm of being OEM fit equipment supplied with new vehicles.
NOTE 1   The provision of eCall for vehicles via the aftermarket (post sale and registration) will be the subject of other work, and in respect of the operational requirements for any such aftermarket solutions for coaches and buses, will use the specifications of this document as a reference point.
NOTE 2   The 112-eCall paradigm involves a direct call from the vehicle to the most appropriate PSAP. (Third party service provision by comparison, involves the support of an intermediary third party service provider before the call is forwarded to the PSAP.) The specifications herein relate only to the provision of 112-eCall or IMS-112-eCall, and do not provide specifications for third party service provision of eCall, although in the case of 112-eCall or IMS-112-eCall for coaches, links to third party provision of service aspects (such as passenger lists) may be required.

Intelligente Verkehrssysteme - ESicherheit - Teil 3: ECall für Reisebusse und Busse

Im Hinblick auf 112-eCall (betriebliche Anforderungen entsprechend EN 16072) legt diese Zielvorgabe Europäischer Normen zusätzliche Spezifikationen für die Bereitstellung von eCall für Reise- und Stadtbusse fest.
Wie bei den bereits bestehenden Bestimmungen zu eCall für Fahrzeuge der Kategorie M1/N1 werden diese innerhalb des Paradigmas spezifiziert, dass es sich um eine Ausrüstung handelt, die vom Originalgerätehersteller in Neufahrzeuge eingebaut wird.
ANMERKUNG 1   Die Bereitstellung von eCall für Fahrzeuge über den Nachrüstmarkt (nach Verkauf und Zulassung) wird den Gegenstand einer anderen Arbeit bilden, die im Hinblick auf die betrieblichen Anforderungen für derartige Nachrüstlösungen für Reise- und Stadtbusse diese Technische Spezifikation als Anhaltspunkt verwenden wird.
ANMERKUNG 2   Das 112-eCall-Paradigma beinhaltet einen Direktanruf vom Fahrzeug bei der zuständigen Notrufzentrale (en: Public Safety Answering Point, PSAP). (Zum Vergleich: Die Diensterbringung durch Dritte beinhaltet die Unterstützung eines zwischengeschalteten externen Dienstleisters, bevor der Anruf an die PSAP weitergeleitet wird.) Die hierin enthaltenen Spezifikationen beziehen sich nur auf die Bereitstellung von 112-eCall oder IMS-112-eCall und bieten keine Spezifikationen für die Erbringung von eCall-Dienstleistungen durch Dritte, obwohl im Fall von 112-eCall oder IMS-112-eCallfür Reisebusse die Verknüpfung mit der Bereitstellung von Dienstleistungsaspekten (wie z. B. Passagierlisten) durch Dritte erforderlich sein kann.

Systèmes de transport intelligents - eSafety - eCall pour les autocars et autobus

Inteligentni transportni sistemi - e-Varnost - 3. del: e-Klic za medkrajevne in mestne avtobuse

V zvezi s storitvijo e-Klic 112 (zahteve za delovanje so določene v standardu EN 16072) ta dokument določa dodatne specifikacije za zagotavljanje e-Klica za potniške vagone in avtobuse.
Tako kot obstoječe določbe za e-Klic za vozila kategorije M1/N1 so tudi te določbe opredeljene v okviru paradigme, da gre za originalno nameščeno opremo (OEM), ki je dobavljena z novimi vozili.
OPOMBA 1: Zagotavljanje e-Klica za vozila po naknadni vgradnji (po prodaji in registraciji) bo predmet drugih dokumentov. V okviru zahtev za delovanje za katere koli take naknadne rešitve za potniške vagone in avtobuse bodo specifikacije tega dokumenta uporabljene kot glavna referenčna točka.
OPOMBA 2: Primer e-Klica 112 je neposredni klic iz vozila do najustreznejšega centra za usklajevanje reševanja. (Zagotavljanje storitev tretjih ponudnikov – za primerjavo – vključuje podporo posredniškega tretjega ponudnika storitev, preden je klic posredovan centru za usklajevanje reševanja.) V tem dokumentu navedene specifikacije se nanašajo samo na zagotavljanje e-Klica 112 ali e-Klica 112 IMS in ne zagotavljajo specifikacij za zagotavljanje storitve e-Klic tretjega ponudnika, čeprav bodo v primeru e-Klica 112 ali e-Klica 112 IMS za potniške vagone morda potrebne povezave do zagotavljanja storitev (npr. seznami potnikov) tretjih ponudnikov.

General Information

Status
Published
Publication Date
03-Jan-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
06-Dec-2018
Due Date
10-Feb-2019
Completion Date
04-Jan-2019

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SLOVENSKI STANDARD
SIST-TS CEN/TS 17249-3:2019
01-februar-2019
Inteligentni transportni sistemi - e-Varnost - 3. del: e-Klic za medkrajevne in
mestne avtobuse
Intelligent transport systems - eSafety - Part 3: eCall for Coaches and buses
Intelligente Verkehrssysteme - ESicherheit - Teil 3: ECall für Reisebusse und Busse
Systèmes de transport intelligents - eSafety - eCall pour les autocars et autobus
Ta slovenski standard je istoveten z: CEN/TS 17249-3:2018
ICS:
03.220.20 Cestni transport Road transport
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
43.040.15 $YWRPRELOVNDLQIRUPDWLND Car informatics. On board
9JUDMHQLUDþXQDOQLãNLVLVWHPL computer systems
SIST-TS CEN/TS 17249-3:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CEN/TS 17249-3:2019

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SIST-TS CEN/TS 17249-3:2019


CEN/TS 17249-3
TECHNICAL SPECIFICATION

SPÉCIFICATION TECHNIQUE

November 2018
TECHNISCHE SPEZIFIKATION
ICS 35.240.60; 03.220.20
English Version

Intelligent transport systems - eSafety - Part 3: eCall for
Coaches and buses
Systèmes de transport intelligents - eSafety - Partie 3 : Intelligente Verkehrssysteme - ESicherheit - Teil 3:
eCall pour les autocars et autobus ECall für Reisebusse und Busse
This Technical Specification (CEN/TS) was approved by CEN on 12 October 2018 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17249-3:2018 E
worldwide for CEN national Members.

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Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols and abbreviations . 9
5 Conformance . 9
6 General overview of the eCall session for 112-European eCall for coaches and buses . 10
6.1 Context . 10
6.2 Categories of vehicles . 10
7 General Requirements . 10
7.1 Automatic or manual . 10
7.2 Triggering conditions . 10
7.3 Specification of the use case OAD . 11
7.4 Data requirements . 11
7.4.1 MSD Data Requirements . 11
7.4.2 Coaches and Buses ‘CB1’optional additional data concept ‘Object Identifier’ . 12
7.4.3 Coach and Bus optional additional data concept ‘CB1’ . 12
Annex A (normative) ASN.1 definition of OAD for Coaches and Buses . 15
A.1 General . 15
A.2 ‘Coaches and Buses’ OAD ASN.1 definition CB1 . 15
A.3 Syntax check of ASN.1 definition . 15
A.4 Example . 16
Annex B (informative) Example ASN.1 definition of complete MSD message for Coaches and
Buses . 17
B.1 General . 17
B.2 ASN.1 definition of complete extended MSD message . 17
B.3 Example . 17
Bibliography. 23

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European foreword
This document (CEN/TS 17249-3:2018) has been prepared by Technical Committee CEN/TC 278
“Intelligent transport systems”, the secretariat of which is held by NEN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
NOTE This document is complementary to EN 16072 and EN 15722 and presents adaptation requirements for
the provision of eCall for Coaches and Buses.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
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Introduction
As a result of European Regulation, from 2018, all new model Category M1/N1 vehicles will be equipped
with112- eCall. Other model Category M1/N1 vehicles may be voluntarily equipped with 112-eCall.
The current eCall Regulation covers only M1 and N1 Category vehicles (cars and vans). The European
Commission’s “ICT Rolling Plan (2017) states the objective “Action 1 Develop technical
specification/standards for the implementation of eCall in vehicles of categories other than M1 and N1 and
for other user types, taking into account requirements included within type approval regulation as well as
ongoing activities in this area (pilots, CEF,…).” And goes on to explain “…for the extension to other vehicles
types and services, such as Heavy Duty Vehicles, Power Two Wheelers or Hazardous Goods tracking, and
other classes of vulnerable road users”.
See CEN/TR 17249-1 for context.
The EC CEF project I_HeERO has also addressed the issues relating to eCall for HGVs, coaches and buses
and vehicle centric solutions for powered two wheel vehicles (P2W) and have passed these results to
CEN/TC 278 PT1507 who are charged to provide specifications for the provision of eCall for Heavy Goods
Vehicles, coaches and buses, agricultural tractors, and powered two-wheel vehicles.
Coaches and buses present two different challenges for eCall, and, despite the fact that the same vehicle
model could be used either as a coach or a bus, require different information. In the case of long distance
coaches, European regulations require that passengers use seat belts, so it is possible to establish the
number of seats in use, which will approximate to the number of passengers on board. Coach trips are
usually booked in advance, and the coach operator therefore also has a passenger list with information
that could be very valuable to the emergency responders, especially for coaches operating abroad, but
must respect privacy regulations. Bus trips, by comparison, involve semi-random unplanned Hop-on/hop-
off characteristics, with little or no use of seat belts.
This document provides determination for the provision of eCall to coaches and buses. As with the existing
provisions for eCall for Category M1/N1 vehicles, these are specified within the paradigm of being OEM
fit equipment supplied with new vehicles.
The provision of eCall for vehicles via the aftermarket (post sale and registration) will be the subject of
other work, and in respect of the operational requirements for any such aftermarket solutions for coaches
and buses, will use the specifications of this document as a principle reference point.
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1 Scope
In respect of 112-eCall (operating requirements defined in EN 16072), this document defines additional
specifications for the provision of eCall for coaches and buses.
As with the existing provisions for eCall for Category M1/N1 vehicles, these are specified within the
paradigm of being OEM fit equipment supplied with new vehicles.
NOTE 1 The provision of eCall for vehicles via the aftermarket (post sale and registration) will be the subject of
other work, and in respect of the operational requirements for any such aftermarket solutions for coaches and buses,
will use the specifications of this document as a reference point.
NOTE 2 The 112-eCall paradigm involves a direct call from the vehicle to the most appropriate PSAP. (Third party
service provision by comparison, involves the support of an intermediary third party service provider before the
call is forwarded to the PSAP.) The specifications herein relate only to the provision of 112-eCall or IMS-112-eCall,
and do not provide specifications for third party service provision of eCall, although in the case of 112-eCall or IMS-
112-eCall for coaches, links to third party provision of service aspects (such as passenger lists) may be required.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 15722, Intelligent transport systems – ESafety – ECall minimum set of data
EN 16062, Intelligent transport systems – ESafety – eCall high level application requirements (HLAP) using
GSM/UMTS circuit switched networks
EN 16072:2015, Intelligent transport systems – ESafety – Pan-European eCall operating requirements
EN 16454, Intelligent transport systems – ESafety – ECall end to end conformance testing
CEN/TS 17184, Intelligent transport systems – eSafety – eCall High level application Protocols (HLAP) using
IMS packet switched networks
CEN/TS 17240, Intelligent transport systems – ESafety – ECall end to end conformance testing for IMS
packet switched based systems
CEN/TR 17249-1:2018, Intelligent transport systems – eSafety – Part 1: Extending eCall to other categories
of vehicle
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
112-eCall
circuit switched eCall using the single European emergency call number supporting Teleservice 12
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3.2
bus
coach making frequent stops with semi-random unplanned Hop-on/hop-off characteristics, with little or
no use of seat belts; passengers may sit or stand and passenger movement is allowed
3.3
coach
vehicle of UNECE Category M2 or M3, designed and constructed for the carriage of passengers,
comprising more than eight seats in addition to the driver's seat
3.4
collision
bus or coach impacts with a vehicle or object or is impacted by another vehicle or object
3.5
data
representations of static or dynamic objects in a formalized manner suitable for communication,
interpretation, or processing by humans or by machines
3.6
data concept
any of a group of data structures (i.e. object class, property, value domain, data elements, message,
interface dialogue, association) referring to abstractions or things in the natural world that can be
identified with explicit boundaries and meaning and whose properties and behaviour all follow the same
rules
3.7
data element
single unit of information of interest (such as a fact, proposition, observation, etc.) about some (entity)
class of interest (e.g. a person, place, process, property, concept, state, event) considered to be indivisible
in a particular context
3.8
driver
operator in control of the coach or bus and managing its movements on the road
3.9
eCall
emergency call which is generated either automatically via activation of in-vehicle sensors or manually
by the vehicle occupants, and which, when activated, provides notification and relevant location
information to the most appropriate Public Safety Answering Point, by means of mobile wireless
communications networks, carries a defined standardized minimum set of data (MSD) notifying that
there has been an incident that requires response from the emergency services, and establishes an audio
channel between the occupants of the vehicle and the most appropriate Public Safety Answering Point
3.10
eCall service
end-to-end emergency service to connect occupants of an affected vehicle to the most appropriate PSAP
via an audio link across a PLMN together with the transfer of a minimum set of data to the PSAP
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3.11
eCall transaction
establishment of a mobile wireless communications session across a public wireless communications
network and the transmission of a minimum set of data from a vehicle to a Public Safety Answering Point
and the establishment of an audio channel between the vehicle and the PSAP
3.12
Hop-on/hop-off
random ingress/egress to/from a bus, usually at predetermined access points (bus stops)
3.13
IMS-112-eCall
pan-European eCall provided using IMS over packet switched cellular wireless networks
(e.g. E_UTRAN/LTE, etc.)
3.14
identifier
label, symbol or token that names or identifies an entity or a collection of data or the means of designating
or referring to a specific instance of a data concept
3.15
in-vehicle system (IVS)
equipment within the vehicle that manages the eCall session and provides or has access to in-vehicle data
required for the minimum set of data and any other data that is to be sent as part of or complementary to
the minimum set of data to effect the eCall transaction via a public mobile wireless communications
network providing a link between the vehicle and a means of enacting the eCall service via a public mobile
wireless communications network
3.16
long distance coach
vehicle of UNECE Category M2 or M3, designed and constructed for the carriage of passengers,
comprising more than eight seats in addition to the driver's seat and which is being used for interurban
or cross country journeys or tours and does not support Hop-on/hop-off stops
3.17
minimum set of data
standardized data concept comprising data elements of relevant vehicle generated data essential for the
performance of the eCall service
Note 1 to entry: Adapted from EN 15722.
3.18
mobile wireless communications network
wireless communications network with homogeneous handover between network access points
3.19
most appropriate PSAP
PSAP defined beforehand by responsible authorities to cover emergency calls from a certain area or for
emergency calls of a certain type
Note 1 to entry: See also PSAP.
Note 2 to entry: A number of different instantiations of PSAP service are supported within this document. A PSAP
can be a Public Authority or a private service provider(3.27) operating on behalf of the responsible authorities.
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3.20
network access point
beacon, antenna or similar source of signal propagation and receipt together with equipment to manage
communication sessions with users operating within the operating reach of the network access point and
provide connectivity for the users within the operating reach of the single access point to a wider
communications network
Note 1 to entry: A network access point may but does not need to provide homogeneous or heterogeneous handover
to another network access point.
3.21
optional additional data
‘optional’ additional datafield contained within and transmitted as part of the MSD
Note 1 to entry: Any additional data element(s) shall each consist of two parts:
a) a relative ‘object identifier’ (OID); and
b) the data content.
3.22
passenger
person who is travelling in a coach or bus, but who is not driving it or working on it
3.23
passenger list
itemized written sequence of names of persons who are travelling on a specified journey on-board a
coach, and in some circumstances associated relevant information
3.24
PSAP (Public Safety Answering Point)
physical location working on behalf of the national authorities where emergency calls are first received
under the responsibility of a public authority or a private organization recognized by the national
government
Note 1 to entry: See also most appropriate PSAP.
Note 2 to entry: A number of different instantiations of PSAP service are supported within this document.
3.25
public mobile wireless communications network
mobile wireless communications network with access to a public telecommunications network
3.26
rollover
overturning of a vehicle onto its side or upside down
3.27
service provider
physical and functional component responsible for providing telematics based services to its subscribers
3.28
wireless communications network
network operating using an air-interface capable of bi-directional transfer of data and or voice
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4 Symbols and abbreviations
CEF Connecting Europe Facility transport (European Commission)
CS circuit switched
EC European Commission
EN European Standard
GSM global system for mobile communications
HLAP High Level Application Protocols
ICT Information and Communications Technology
IETF Internet Engineering Task Force
IMS IP-Multimedia Subsystem
IETF Internet Engineering Task Force
I_HeERO Infrastructure_Harmonized eCall EuRopean pilOt
IVS in-vehicle system
(3.15)
MSD minimum set of data (EN 15722)
OAD optional additional data(3.21) (concept)
OEM original equipment manufacturer
OID object identifier
P2W/P2WV powered two wheel vehicle
PSAP Public Safety Answering Point
TPS third party service
TR Technical Report
TS Technical Specification
UMTS universal mobile telecommunication system
UNECE United Nations Economic Commission for Europe
URI Uniform Resource Indicator
URL Uniform Resource Locator
UTRAN UMTS Terrestrial Radio Access Network
VIN Vehicle Identification Number
5 Conformance
Conformance to the requirements of this document for eCall using circuit switched wireless cellular
communications systems are to be found in EN 16062 and EN 16454.
Conformance to the requirements of this document for eCall using packet switched IMS are to be found
in CEN/TS 17184 and CEN/TS 17240.
This document makes no conformance specifications or requirements in respect of TPS eCall operating
requirements, and conformance requirements in respect of TPS eCall can be found in EN 16102 and
EN 16454.
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6 General overview of the eCall session for 112-European eCall for coaches and
buses
6.1 Context
This document is based on the definition of an eCall session as defined in EN 16072, providing data as
determined in EN 15722.
This document provides specifications to extend the scope of eCall to benefit incidents involving UNECE
Category M vehicles, and is determined within the general context of the paradigm of eCall for coaches
and buses described in CEN/TR 17249-1:2018 in its general provisions, and particularly in Clause 11,
which is specific to coaches and buses.
This specification provides parameters and protocols to enable the provision of eCall to coaches and buses
6.2 Categories of vehicles
See CEN/TR 17249-1:2018, 6.3 for greater detail and sub-classifications and Clause 11 of that document
for coach and bus specific considerations of vehicle type data and accident related data.
This specification is directed at two principle categories of coaches and buses:
– Category M2 Vehicles used for the carriage of passengers, comprising more than eight seats in
addition to the driver's seat, and having a maximum mass not exceeding 5 t.
NOTE 1 This category of vehicles is more commonly described as “small coach” or “people carrier”, but also
described as “bus” in some use cases.
– Category M3 Vehicles used for the carriage of passengers, comprising more than eight seats in
addition to the driver's seat, and having a maximum mass exceeding 5 t.
NOTE 2 This category of vehicles is more commonly described as “large coach”, but also described as “bus”
in some use cases.
The basic requirement of eCall for coaches and buses in the event of an incident, is the transmission of an
MSD (as specified in EN 15722), to the most appropriate PSAP and the opening of a voice channel between
that PSAP and the occupants of the vehicle remain – basically - the same for coaches and buses as for
private vehicles, however, there are some differences:
a) there may be additional information that would be of use to the PSAP in assessing the situation
(see Clauses 7 and 8 below);
b) the PSAP may or may not wish to talk to the passengers as well as the driver.
NOTE 3 Coach designers may wish to provide a facility for the PSAP to speak to passengers via the vehicles PA
system. But this is considered, at this stage, to be a feature of OEM design and not a requirement.
7 General Requirements
7.1 Automatic or manual
An eCall from a Category M2 or Category M3 vehicle may be automatically or manually triggered as
specified in EN 16072.
7.2 Triggering conditions
The conditions for triggering of eCall, as described in EN 16072:2015, 7.10, shall also apply to eCall for
coaches and buses UNECE Category M.
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Instigation of triggering and the technical means of triggering, in this OEM provided paradigm, shall be
determined by the designer of the system, however such provisions shall trigger an eCall in the event of:
• Significant collision;
• Fire;
• Rollover;
• Other conditions considered appropriate by the system designer;
• Manual instigation.
“Significant collision” in this paradigm are the conditions that the system designer determines should
generate an eCall.
7.3 Specification of the use case OAD
See CEN/TR 17249-1:2018, Clause 11 for explanation of the process followed in reaching this
specification.
All data included in the minimum set of data defined in EN 15722 are valid and necessary for M category
vehicles.
Additional data, if available, may assist the PSAP to determine what type and number of rescue resources
are sent to the scene of the incident, and, if available, may provide more information about the type and
condition of the vehicle, and consequences of the accident to passengers and the driver. The ‘Optional
Additional Data‘ concept (OAD) titled ‘Coach and bus 1’ and named CB1 for brevity serves this purpose.
Some data needs to be stored or calculated by the equipment installed inside the vehicle. In the case of a
coach or bus this implies more data than the standardized predefined fields specified in EN 15722. These
additional fields therefore need to be defined and provided in an optional additional data field presented
within the MSD, and are specified below.
The operator may provide a contact number where the PSAP may obtain further information regarding
the vehicle and in some cases, passenger lists, etc.
Classification and contents of data elements are given in the following clauses.
7.4 Data requirements
7.4.1 MSD Data Requirements
Data defined in EN 15722 MSD core data requirements shall be reported in accordance with EN 15722.
Table 1 provides a summary of the semantic contents of the MSD, for a full description please refer to
EN 15722.
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Table 1 — Contents/format of the MSD data concept
M – Mandatory data field
O – Optional data field.
MSD
 msdVersion INTEGER - M
(1.255)
msd
 msdStructure

optionalAdditionalData O
RELATIVE-OID
 oid
OCTET STRING
data
The MSD datafield numberOfPassengers shall be filled with the approximate number of passengers on
board (if known), including the driver. How this information is obtained (e.g. seat belt fastened sensors,
ingress/egress sensors on a bus, etc.) is a matter for system design. Knowing the approximate number of
passengers on board can assist the PSAP to assess the resources to be sent to the incident
7.4.2 Coaches and Buses ‘CB1’optional additional data concept ‘Object Identifier’
The object identifier uniquely identifies the format and meaning of the data which follows in the optional
additional data concept as defined in EN 15722.
eCall has been allocated the OID 1.0.14817.106.2.1. Within this, arc ‘.2’ has been defined to contain
‘Optional additional data concepts’. The OID for the OAD named ‘CB1’ shall be 1.0.14817.106.2.1.2.5. For
reasoning of versioning an additional arc is appended.
This deliverable defines the first version of the schema for ‘CB1’ which consequently shall be identified
by this unique OID:
OID: 1.0.14817.106.2.1.2.5.1
For further detail regarding the use of OIDs in eCall, see EN 15722.
7.4.3 Coach and Bus optional additional data concept ‘CB1’
The OAD shall be called the “Coaches and Buses OAD” or “CB1” for brevity.
Table 2 provides a summary of the semantic contents of the optionalAdditionalData part of the MSD for
CB1. All elements of the OAD are optional, but when the OAD is embedded at least one of the (optional)
elements (not being ‘oid’) shall be provided. Optional elements shall not be embedded when the IVS has
no means to determine their value. If none of the elements of the OAD can be determined, the OAD shall
not be embedded.
The sequence of data presentation shall be as specified in Table
...

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