ISO 15638-20:2020

INTERNATIONAL ISO
STANDARD 15638-20
First edition
2020-07
Intelligent transport systems —
Framework for cooperative telematics
applications for regulated commercial
freight vehicles (TARV) —
Part 20:
Weigh-in-motion monitoring
Reference number
©
ISO 2020
© ISO 2020
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ii © ISO 2020 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 3
4 Symbols and abbreviated terms . 7
5 Conformance . 9
6 General overview and framework requirements . 9
6.1 General . 9
6.2 Overview of Communication Profile C1 — Remote roadside inspection using a
short-range wireless communication interrogator instigating a physical roadside
inspection .10
6.2.1 General overview of Communication Profile C1.10
6.3 Overview of Communication Profile 2 — Roadside inspection using a short-
range wireless communication interrogator, instigating a download of data to an
application service provider .12
6.3.1 General overview of Communication Profile 2 .12
6.4 Overview of Communication Profile C3 — Remote inspection addressed via an
ITS-station instigating a download of data to an application service provider via a
wireless communications interface (as defined in ISO 15638-2) .13
6.4.1 General overview of Communication Profile C3.13
6.5 Communications requirements .15
6.5.1 General communications requirements .15
6.5.2 Communications profile C1 requirements .15
6.5.3 Communications profile C2 requirements .15
6.5.4 Communications profile C3 requirements .15
7 Requirements for services using generic vehicle data .16
8 Application services that require data in addition to basic vehicle data .16
8.1 General .16
8.2 Quality of service requirements .16
8.3 Test requirements .16
8.4 Marking, labelling and packaging .16
9 Common features of regulated TARV application services .16
9.1 General .16
9.1.1 Communication Profiles C1 and C2 .17
9.1.2 Communication Profile C3 .18
9.2 Common role of the jurisdiction, approval authority, service provider and user .19
9.3 Common characteristics for instantiations of regulated application services .20
9.4 Common sequence of operations for regulated application services .20
9.5 Quality of service .20
9.6 Information security .20
9.7 Data naming content and quality .21
9.8 Software engineering quality systems .21
9.9 Quality monitoring station .21
9.10 Audits .21
9.11 Data access control policy .21
9.12 Approval of IVSs and service providers .21
10 Weigh-in-motion (WIM) .22
10.1 TARV WIM service description and scope .22
10.1.1 Generic TARV WIM use case via the application service provider .22
10.1.2 Types of weigh-in-motion .22
10.1.3 WIM-O (weigh-in-motion system Onboard) .23
10.1.4 WIM-R (weigh-in-motion system Roadway) .23
10.1.5 Storage of the WIM data on-board the vehicle .23
10.1.6 WIM inspection and Communication Profiles .23
10.1.7 Specific use case of weigh-in-motion inspection by an inspector of the
jurisdiction using short range equipment (Communication profiles 1 and 2) .24
10.1.8 Description of TARV WIM regulated application service .24
10.1.9 Description of TARV WIM application service .25
10.2 Concept of operations for TARV WIM .26
10.2.1 General.26
10.2.2 Statement of the goals and objectives of the TARV WIM system .26
10.2.3 Strategies, tactics, policies, and constraints affecting the TARV WIM system .26
10.2.4 Organizations, activities, and interactions among participants and
stakeholders of TARV WIM .27
10.2.5 Clear statement of responsibilities and authorities delegated for TARV WIM .27
10.2.6 Equipment required for TARV WIM .30
10.2.7 Operational processes for the TARV WIM system .31
10.2.8 Role of the jurisdiction for TARV WIM .31
10.2.9 Role of the TARV WIM prime service provider .31
10.2.10  Role of the TARV WIM application service provider .31
10.2.11  Role of the TARV WIM user .31
10.2.12  Generic characteristics for all instantiations of the TARV weigh-in-
motion (WIM) application service .31
10.3 Sequence of operations for TARV WIM .32
10.3.1 General.32
10.4 TARV WIM service elements .34
10.4.1 TARV WIM service element (SE) 1 — Establish ‘weigh-in-motion’
regulations, requirements, and approval arrangements .34
10.4.2 TARV WIM SE2 — Request system approval .34
10.4.3 TARV WIM SE3 — User (fleet owner) contracts with prime service provider .34
10.4.4 TARV WIM SE4 — User (fleet owner) equips vehicle with a weigh-in-
motion system .34
10.4.5 TARV WIM SE5 — User contracts with application service provider .34
10.4.6 TARV WIM SE6 — Application service provider uploads software into the
TARV equipped vehicles of the fleet owner .34
10.4.7 TARV WIM SE7 — Create Data .34
10.4.8 TARV WIM SE8 — Recording of weigh-in-motion data .35
10.4.9 TARV WIM SE10 — ‘Interrogated’ request for weigh-in-motion data.35
10.4.10  TARV WIM SE9 — Pre-programmed interval sending weigh-in-motion
data to application service provider (Communication Profile 3) .37
10.4.11  TARV WIM SE11 — End of session . .38
10.5 Generic TARV WIM data naming, content and quality .38
10.6 WIM data content .38
10.7 TARV WIM application service specific provisions for quality of service .38
10.8 TARV WIM application service specific provisions for test requirements .39
10.9 TARV WIM application specific rules for the approval of IVSs and ‘Service Providers’ .39
Annex A (informative) WIM communication and transaction profiles .40
Annex B (normative) Communication Profile for 5,8 GHz DSRC communications .47
Annex C (informative) Example application data ‘profiles’ for ‘weigh-in-motion’ .91
Annex D (informative) End user considerations for deployment and use of ‘weigh-in-
motion’ systems .104
Bibliography .106
iv © ISO 2020 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
is o/ f or ewor d . ht m l .
This document was prepared by Technical Committee ISO/TC 204, Intelligent transport systems.
A list of all parts in the ISO 15638 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
Introduction
Many ITS technologies have been embraced by commercial transport operators and freight owners, in
the areas of fleet management, safety and security. On-board applications have also been developed
for governmental use. Such regulatory services in use or being considered vary from jurisdiction to
jurisdiction, but include electronic on-board recorders, digital tachograph, on-board mass monitoring,
‘mass’ data for regulatory control and management weigh-in-motion, vehicle access methods, hazardous
,
goods tracking and eCall. Additional applications with a regulatory impact being developed include fatigue
management, speed monitoring and vehicle penalties imposed based on location, distance and time.
The ISO 15638 series of standards defines and addresses the framework for a range of cooperative
telematics applications for regulated vehicles (e.g. access methods, driver fatigue management, speed
monitoring, on-board mass monitoring, Remote Tachograph Monitoring, ADR management). The
overall scope includes the concept of operation, legal and regulatory issues, and the generic cooperative
provision of services to regulated vehicles, using an on-board ITS platform. The framework is based
on a (multiple) service provider-oriented approach with provisions for the approval and auditing of
service providers.
The ISO 15638 series of standards provides both the means to achieve current requirements for
telematics applications for regulated vehicles and the basis for future development of cooperative
telematics applications for regulated vehicles.
The ISO 15638 series of standards is timely as many governments (Europe, North America, Asia and
Australia/New Zealand) are considering the use of telematics for a range of regulatory purposes.
This document provides specifications for weigh-in-motion and on-board weighing monitoring and
supports several defined communication profiles in which this function may be performed.
Consistent with other parts of the ISO 15638 series of standards, this document does not prescribe
nor proscribe particular modes of operation. Rather, it provides a number of defined communication
and data profiles within which jurisdictions may achieve their objectives for remote weigh-in-motion
monitoring within the objectives and constraints of their regulations. This document recognizes that
those requirements and constraints will differ between jurisdictions.
vi © ISO 2020 – All rights reserved

INTERNATIONAL STANDARD ISO 15638-20:2020(E)
Intelligent transport systems — Framework for
cooperative telematics applications for regulated
commercial freight vehicles (TARV) —
Part 20:
Weigh-in-motion monitoring
1 Scope
This document addresses the provision of ‘weigh-in-motion monitoring’ and specifies the form and
content of the transmission of such data required to support such systems, and access methods to
that data.
This document provides specifications for both on-board weighing (WIM-O) systems and in-road
“weigh-in-motion” (WIM-R) systems, and provides a profile where the vehicle weight measured is
recorded on-board using equipment already installed for “Remote Tachograph Monitoring”.
This document provides specifications for common communications and data exchange aspects of the
application service weigh-in-motion monitoring (WIM-O and WIM-R) that a jurisdiction regulator can
elect to require or support as an option, including:
a) High level definition of the service that a service provider has to provide (the service definition
describes common service elements, but does not define the detail of how such an application
service is instantiated, nor the acceptable value ranges of the data concepts defined);
b) Means to realize the service;
c) Application data naming, content and quality that an IVS has to deliver, including a number of
profiles for data (noting that requirements and constraints of what can/cannot be transmitted over
the air can vary between jurisdictions);
d) Support for a number of defined communication profiles to enable remote inspection.
The present version of this document provides specifications for the following application profiles:
— Application Profile A1: Vehicle weight measurement from “On-Board Weighing” systems
(WIM-O);
— Application Profile A2: Vehicle weight measurement from in-road ‘weigh-in-motion’ systems
where data is transferred to the IVS (WIM-R).
NOTE 1 Vehicle weight measurement from in-road ‘weigh-in-motion’ systems where data is linked to a specific
vehicle by ANPR or other techniques and sent via landline or cellular communications to a processing centre is also
a viable and alternate option, but as it does not include carrying data on-board the vehicle is not a TARV use case.
The present version of this document provides specifications for the following communication profiles:
— Communication Profile 1: Roadside inspection using a short range wireless communication
interrogator instigating a physical roadside inspection (master-:-slave):
— Profile C1a: via a hand aimed or temporary roadside mounted and aimed interrogator;
— Profile C1b: via a vehicle mounted and directed interrogator;
— Profile C1c: via a permanent or semi-permanent roadside or overhead gantry.
— Communication Profile 2: Roadside inspection using a short range wireless communication
interrogator instigating a download of data to an application service provider via an ITS-
station communication (master-:-slave + peer-:-peer):
— Profile C2a: via a hand aimed or temporary roadside mounted and aimed interrogator;
— Profile C2b: via a vehicle mounted and directed interrogator;
— Profile C2c: via a permanent or semi-permanent roadside or overhead gantry.
— Communication Profile 3: Remote inspection addressed via an ITS-station instigating a
download of data to an application service provider via a wireless communications interface
(as defined in ISO 15638-2).
Subsequent versions of this document can support additional communication profiles.
NOTE 2 The ISO 15638 series of standards has been developed for use in the context of regulated commercial
freight vehicles (hereinafter referred to as ‘regulated vehicles’). There is nothing, however, to prevent a
jurisdiction from extending or adapting the scope to include other types of regulated vehicles, as it deems
appropriate.
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.
ISO 11898-1, Road vehicles — Controller area network (CAN) — Part 1: Data link layer and physical
signalling
ISO 15638-1, Intelligent transport systems — Framework for cooperative telematics applications for
regulated vehicles (TARV) — Part 1: Framework and architecture
ISO 15638-2, Intelligent transport systems — Framework for cooperative telematics applications for
regulated vehicles (TARV) — Part 2: Common platform parameters using CALM
ISO 15638-3, Intelligent transport systems — Framework for collaborative Telematics Applications for
Regulated commercial freight Vehicles (TARV) — Part 3: Operating requirements, 'Approval Authority'
procedures, and enforcement provisions for the providers of regulated services
ISO/TS 15638-4, Intelligent transport systems — Framework for cooperative telematics applications for
regulated commercial freight vehicles (TARV) — Part 4: System security requirements
ISO 15638-5:2013, Intelligent transport systems — Framework for collaborative Telematics Applications
for Regulated commercial freight Vehicles (TARV) — Part 5: Generic vehicle information
ISO 15638-6:2014, Intelligent transport systems — Framework for collaborative Telematics Applications
for Regulated commercial freight Vehicles (TARV) — Part 6: Regulated applications
ISO 15638-9, Intelligent transport systems — Framework for cooperative telematics applications for
regulated commercial freight vehicles (TARV) — Part 9: Remote digital tachograph monitoring
EN ETSI 300 674-1, ETSI EN 300 674-1 V1.2.1 (2004-08) Electromagnetic compatibility and Radio spectrum
Matters (ERM); Road Transport and Traffic Telematics (RTTT); Dedicated Short Range Communication
(DSRC) transmission equipment (500 kbit/s / 250 kbit/s) operating in the 5,8 GHz Industrial, Scientific and
Medical (ISM) band; Part 1: General characteristics and test methods for Road Side Units (Interrogator)
and On-Board Units (OBU)
ARIB STD-T75, Dedicated Short-Range Communication (Japan)
2 © ISO 2020 – All rights reserved

TTAS KO-06.0025, Standard of DSRC Radio Communication between Road-side Equipment and On-
board Equipment in 5.8 GHz band (Korea)
EN 12253, Road transport and traffic telematics — Dedicated short-range communication — Physical
layer using microwave at 5.8 GHz
EN 12795, Road transport and traffic telematics — Dedicated Short Range Communication (DSRC) —
DSRC data link layer: medium access and logical link control
EN 12834:2003, Road transport and traffic telematics — Dedicated Short Range Communication (DSRC) —
DSRC application layer
EN 13372:2012, Road transport and traffic telematics — Dedicated Short Range Communication (DSRC) —
Profiles for RTTT applications
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 15638-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
app
small (usually) Java™ (3.23) applets, organized as software bundles, that support application services
(3.3) by keeping the data pantry (3.16) provisioned with up to date data
3.2
application profile
characteristics and specification of the information and transaction detail required to meet a set of
user (3.49) needs which within the common high-level framework (3.19) of this document, allows
different jurisdictions (3.24) to receive different detail of transaction or to specify a particular
communications means
3.3
application service
service provided by a service provider (3.44) enabled by accessing data from the IVS (3.19) of a regulated
vehicle (3.43) via a wireless communications network
3.4
application service provider
ASP
party that provides an application service (3.3)
3.5
app library
separately secure area of memory in IVS (3.19) where apps are stored [with different access controls to
data pantry (3.16)]
3.6
approval
formal affirmation that an applicant has satisfied all of the requirements for appointment as an
application service provider (3.4) or that an application service (3.3) delivers the required service levels
3.7
approval agreement
written agreement made between an approval authority (regulatory) (3.8) and a service provider (3.44)
Note 1 to entry: An approval authority (regulatory) (3.8) approval agreement recognizes the fact that a service
provider (3.44) having satisfied the approval authority’s requirements for appointment as a service provider, is
,
appointed in that capacity, and sets out the legal obligations of the parties with respect to the on-going role of the
service provider.
3.8
approval authority
organization (usually independent) which conducts approval (3.6) and ongoing audit
(3.10) for service providers (3.44) on behalf of a jurisdiction (3.24)
3.9
architecture
formalized description of the design of the structure of TARV and its framework (3.19)
3.10
audit
auditing
review of a party’s capacity to meet, or continue to meet, the initial and ongoing approval agreements
(3.7) as a service provider (3.44)
3.11
basic vehicle data
data maintained/provided by all IVS (3.19) [regardless of jurisdiction (3.24)]
3.12
communications access for land mobiles
CALM
layered solution that enables continuous or quasi continuous communications between vehicles and the
infrastructure, or between vehicles, using such (multiple) wireless telecommunications media that are
available in any particular location, and which have the ability to migrate to a different available media
where required and where media selection is at the discretion of user (3.49) determined parameters
by using a suite of standards based on ISO 21217 [CALM (3.12) architecture] and ISO 21210 (CALM
networking) that provide a common platform for a number of standardized media using ITS-stations
(3.22) to provide wireless support for applications, such that the application is independent of any
particular wireless medium
3.13
commercial application(s)
ITS applications in regulated vehicles (3.43) for commercial (non-regulated) purposes
EXAMPLE Asset tracking, vehicle and engine monitoring, cargo security, driver (3.17) management.
3.14
communications profile
characteristics and specification of the communication detail required to meet a set of user (3.49) needs
using a selected wireless medium
3.15
core data
basic vehicle data (3.11) plus any additional data required to provide an implemented regulated
application service (3.42)
3.16
data pantry
secure area of memory in IVS (3.19) where data values are stored [with different access controls to app
library (3.5)]
4 © ISO 2020 – All rights reserved

3.17
driver
person driving the regulated vehicle (3.43) at any specific point in time
3.18
facilities layer
layer that sits on top of the communication stack and helps to provide data interoperability and reuse,
and to manage applications and enable dynamic real time loading of new applications
3.19
framework
particular set of beliefs or ideas referred to in order to describe a scenario or solve a problem
3.20
in-vehicle system
IVS
ITS-station (3.22) and connected (TARV/WIM) equipment on board a vehicle
Note 1 to entry: Known in EFC specific equipment as OBE (on-board equipment) or OBU (on-board unit).
Note 2 to entry: Often known in weigh-in-motion and tachograph (3.47) specific regulations as VU (vehicle unit).
3.21
interrogator
off-board device which can establish a wireless communications session with the IVS (including 5,8 GHz
DSRC) and request the provision of weigh-in-motion data, often a mobile device under the control of an
agent of the jurisdiction (3.24)
3.22
ITS-station
ITS-s
entity in a communication network, comprised of application, facilities layer (3.18), networking and access
layer components specified in ISO 21217 that operate within a bounded secure management domain
3.23
1)
Java™
object oriented open source operating language developed by SUN systems
3.24
jurisdiction
government, road or traffic authority which owns the regulatory applications (3.41)
EXAMPLE Country, state, city council, road authority, government department (e.g. customs, treasury,
transport).
3.25
jurisdiction regulator
agent of the jurisdiction (3.24) appointed to regulate and manage TARV within the domain of the
jurisdiction which may or may not be the approval authority (regulatory) (3.8)
3.26
on-board weighing system
generation of vehicle weight data from equipment on-board the vehicle
Note 1 to entry: The technical means of generating such data is not specified in this document, only the
resultant data.
TM
1) Java is an example of a suitable product available commercially. This information is given for the convenience
of users of this document and does not constitute an endorsement by ISO of this product.
3.27
operator
operator of interrogation equipment
3.28
physical roadside inspection
physical inspection of the weigh-in-motion data of a stopped vehicle by agents of the application service
provider (3.4) [most usually police or inspectors appointed by the jurisdiction (3.24)]
3.29
prime service provider
service provider (3.44) who is the first contractor to provide regulated application services (3.42) to the
regulated vehicle (3.43), or a nominated successor on termination of that initial contract, responsible to
maintain the installed IVS (3.19) and to install and commission new IVS (3.19)
3.40
profile
common and consistent elaboration of content and sequence of a set of chosen classes, conforming
subsets, options, parameters, and/or data concepts to accomplish a particular function/specification
3.41
regulated application
regulatory application
application arrangement using TARV utilized by jurisdictions (3.24) for granting certain categories
of commercial vehicles rights to operate in regulated circumstances subject to certain conditions, or
indeed to permit a vehicle to operate within the jurisdiction
Note 1 to entry: May be mandatory or voluntary at the discretion of the jurisdiction.
3.42
regulated application service
TARV application service (3.3) to meet the requirements of a regulated application (3.41) that is
mandated by a regulation imposed by a jurisdiction (3.24) or is an option supported by a jurisdiction
,
3.43
regulated vehicle
vehicle that is subject to regulations determined by the jurisdiction (3.24) as to its use on the road
system of the jurisdiction in regulated circumstances, subject to certain conditions, and in compliance
with specific regulations for that class of regulated vehicle
Note 1 to entry: At the option of jurisdictions, this may require the provision of information via TARV or provide
the option to do so.
3.44
service provider
party which is certified by an approval authority (regulatory) (3.8) as suitable to provide regulated or
commercial ITS application services (3.3)
3.45
session
wireless communication exchange between the ITS-station (3.22) of an IVS (3.19) and the ITS-station of
its application service provider (3.4) to achieve data update, data provision, upload apps, or otherwise
manage the provision of the application service (3.3) or a wireless communication provision of data to
,
the ITS-station of an IVS (3.19) from any other ITS-station
3.46
specification
explicit and detailed description of the nature and functional requirements and minimum performance
of equipment, service or a combination of both
6 © ISO 2020 – All rights reserved

3.47
tachograph
sender unit usually mounted to a vehicle gearbox, a tachograph head and a digital driver (3.17) card,
which records the regulated vehicle (3.43) speed and the times at which it was driven and aspects of the
driver’s (3.17) activity selected from a choice of modes
3.48
telematics
use of wireless media to obtain and transmit (data) from a distant source
3.49
user
individual or party that enrols in and operates within a regulated or commercial application (3.13)
service (3.2)
EXAMPLE Driver (3.17), fleet manager, freight owner.
3.50
weigh-in-motion
weigh-in-motion system
generation of vehicle weight data from equipment either onboard (WIM-O) or embedded in the road
pavement (WIM-R) and transferred to the IVS (3.20) of the vehicle ready for subsequent inspection
Note 1 to entry: The technical means of generating such data is not specified in this document, only the
resultant data.
3.51
weigh-in-motion system-onboard
WIM-O
generation of vehicle weight data from equipment within the vehicle
Note 1 to entry: The technical means of generating such data is not specified in this document, only the
resultant data.
3.52
weigh-in-motion system-roadway
WIM-R
generation of vehicle weight data from equipment embedded in the road pavement and transferred to
the IVS (3.20) of the vehicle ready for subsequent inspection
Note 1 to entry: The technical means of generating such data is not specified in this document, only the
resultant data.
4 Symbols and abbreviated terms
ADU Application Data Unit
APDU application protocol data unit
ANPR Automatic number plate recognition
TM
App applet (JAVA application or similar)
ASN.1 Abstract Syntax Notation One
ASP application service provider
BER Bit Error Rate
BLE Bluetooth Low Energy
BST Beacon Service Table
CALM communications access for land mobiles
CAN controller area network
CRC cyclic redundancy check
DSRC dedicated short-range communication
EID Element identifier
EFC Electronic Fee Collection
EN European Norm (Standard)
GNSS Global Navigation Satellite System
ID Identity
ITS-s ITS station
IVS In-vehicle system
L7 Layer 7 of DSRC (Application Layer Core of DSRC)
LDT Local data tree
LID logical link control identifier
LLC logical link control
LPDU link layer protocol data unit
MAC Media Access Control (Media Access Layer Core of
DSRC)
MA-DATA MAC sublayer primitive to the LLC sublayer
OBE On-board equipment (EFC term for IVS)
OBU On-board unit (EFC term for IV unit)
PrWA private uplink window allocation
PuWA public uplink window allocation
RR response request
RSU Road-side unit (EFC term for roadside interrogator)
SAP Service access point
SE service element
T-APDU Transfer-Application Protocol Data Unit
TARV telematics applications for regulated vehicles
VST vehicle service table
8 © ISO 2020 – All rights reserved

VU vehicle unit (EU regulatory term for weigh-in-
motion IVS)
WIM Weigh-in-Motion
WIM-O Weigh-in-Motion from onboard equipment
WIM-R Weigh-in-Motion from in-road equipment
WGS84 World Geodetic System 1984
Μs Microsecond
5 Conformance
Requirements to demonstrate conformance to any of the general provisions or specific application
services described in this document shall take into consideration the data requirements imposed by
the jurisdiction where they are instantiated.
Systems claiming conformance with this document may support one or more applications (Application
Profiles 1 and/or 2) as defined in Clause 1, but shall support at least one of these options.
Systems claiming conformance with this document may support one or more of Communication
Profiles 1, 2 and 3 as defined in Clause 1, but shall support at least one of these options.
6 General overview and framework requirements
6.1 General
This document addresses the provision of ‘weigh-in-motion monitoring’ and specifies the form and
content of the transmission of such data required to support such systems and access methods to that
data. The data may be transferred by a variety of means (as ITS-station -:- ITS-station data transfers
in a C-ITS environment using 5,9 GHz, 3G, 4G, LTE or similar) transfers using interrogations from short
range dedicated communication systems (such as 5,8 GHz) or other agency approved methods.
ISO 15638-1 provides a framework and architecture for TARV. It provides a general description of the
roles of the actors in TARV and their relationships.
For a clear understanding of the TARV framework, architecture and detail and specification of the roles
of the actors involved, the reader is referred to ISO 15638-1.
ISO 15638-6 provides the core requirements for all regulated applications. For a clear understanding
of the general context into which the provision of this application service is provided, the reader is
referred to ISO 15638-6.
The present version of this document provides specifications for the following Application Profiles:
— Application Profile A1: The generation of vehicle weight data from equipment on-board the
vehicle (WIM-O)
The technical means of generating such data is not specified in this document, only the resultant data.
— Application Profile A2: The generation of vehicle weight data from equipment embedded in
the road pavement and transferred to memory on-board (WIM-R)
The technical means of generating such data is not specified in this document, only the resultant data.
The present version of this document provides specifications for the following Communication Profiles:
— Communication Profile C1: Roadside inspection using a short range wireless communication
interrogator instigating a physical roadside inspection (master-:-slave)
— Profile C1a: via a hand aimed or temporary roadside mounted and aimed interrogator;
— Profile C1b: via a vehicle mounted and directed interrogator;
— Profile C1c: via a permanent or semi-permanent roadside or overhead gantry.
(See 6.2 for overview).
— Communication Profile C2: Roadside inspection using a short range wireless communication
interrogator, instigating a download of data to an application service provider (master-:-
slave + peer-:-peer)
— Profile C2a: via a hand aimed or temporary roadside mounted and aimed interrogator;
— Profile C2b: via a vehicle mounted and directed interrogator;
— Profile C2c: via a permanent or semi-permanent roadside or overhead gantry.
(See 6.3 for overview).
— Communication Profile C3: Remote inspection addressed via an ITS-station instigating a
download of data to an application service provider via a wireless communications interface
(peer-:-peer) (as defined in ISO 15638-2)
(See 6.4 for overview).
Jurisdictions requiring and regulating the use of remotely monitored WIM-O/WIM-R systems are
recommended to specifically regulate in the case of the use of Communication Profile 1 and/or
Communication Profile 2, and for each Application Profile. It is further recommended (but not required)
that jurisdictions whose data requirements require support of Profile 1 for regulatory e
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