1、BSI Standards PublicationBS ISO 26684:2015Intelligent transportsystems (ITS) Cooperativeintersection signal informationand violation warning systems(CIWS) Performancerequirements and testproceduresBS ISO 26684:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of IS
2、O 26684:2015. The UK participation in its preparation was entrusted to TechnicalCommittee EPL/278, Intelligent transport systems.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions
3、 of a contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 75456 2 ICS 03.220.01; 35.240.60 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was
4、published under the authority of the Standards Policy and Strategy Committee on 30 April 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e d ISO 2015Intelligent transport systems (ITS) Cooperative intersection signal information and violation warning systems (CIWS) Perfor
5、mance requirements and test proceduresSystmes intelligents de transport (ITS) Systmes davertissement dinformation et de violation du signal dintersection cooprative (CIWS) Exigences de performance et modes opratoires dessaiINTERNATIONAL STANDARDISO 26684First edition 2015-05-01Reference number ISO 2
6、6684:2015(E)BS ISO 26684:2015ISO 26684:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including phot
7、ocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47
8、E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 26684:2015ISO 26684:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Symbols 25 Classification 35.1 System configuration . 35.2 System configuration . 36 Functional requirements . 46.1
9、 CIWS state diagram . 46.1.1 CIWS states . 56.2 Transition criteria 56.2.1 Criterion (1): RSE activation 56.2.2 Criterion (2): RSE deactivation 66.2.3 Criterion (3): OBE activation . 66.2.4 Criterion (4): OBE deactivation . 66.2.5 Class II criterion (5): Warning activation . 66.2.6 Class II criterio
10、n (6): Warning deactivation . 66.3 Functional requirements of OBE . 66.3.1 Acquisition of travel direction 66.3.2 Acquisition of vehicle position . 66.3.3 Acquisition of vehicle speed. 66.3.4 Identification of traffic signal information 66.3.5 Judgement of warning necessity and warning contents (Cla
11、ss II) 66.3.6 Timing of warning output 76.3.7 Timing of warning termination . 76.3.8 HMI display contents 76.4 Functional requirements of RSE 76.4.1 Data sets 76.4.2 Communication range . 76.4.3 Communication delay 76.5 CIWS system performance 76.5.1 System capabilities . 76.5.2 Provision of informa
12、tion . 86.5.3 Warning threshold for signal violation . 87 Test requirements . 97.1 Test vehicle . 97.2 Test site 97.2.1 Environmental conditions . 97.2.2 Geometric conditions 107.2.3 RSE location for the systems providing communication only at XAL.107.3 Test procedure 107.3.1 Test method . 10Bibliog
13、raphy .12 ISO 2015 All rights reserved iiiContents PageBS ISO 26684:2015ISO 26684:2015(E)ForewordISO (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
14、through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO coll
15、aborates 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 approv
16、al 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 sub
17、ject 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 trad
18、e name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Tec
19、hnical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information .The committee responsible for this document is ISO/TC 204, Intelligent transport systems. iv ISO 2015 All rights reservedBS ISO 26684:2015ISO 26684:2015(E)IntroductionThe main system function of cooperative in
20、tersection signal information and violation warning systems (CIWS) is to warn drivers who are about to violate an intersections traffic signal to stop at the prescribed location. The CIWS is intended to provide a cooperative vehicle and infrastructure system that reduces the likelihood and severity
21、of crashes at signalized intersections by providing the signal phase information and/or by warning the driver that an intersection signal violation is about to occur. The system uses information communicated from the roadside infrastructure to determine if a warning should be given to a driver.The p
22、urpose of implementing CIWS is to reduce violations of traffic signals at signalized intersections to: (a) reduce fatalities, (b) reduce the number and/or severity of injuries, and (c) reduce property damage associated with collisions.This International Standard addresses CIWS for use in road vehicl
23、es approaching signalized intersections.This International Standard may be used as a system level standard by other standards, which extend the CIWS to a more detailed standard utilizing wireless communication technologies. Issues such as the specific requirements for the function and performance of
24、 communication technology or traffic control facilities (including traffic signal controllers) will not be considered in this International Standard. ISO 2015 All rights reserved vBS ISO 26684:2015ISO 26684:2015(E)BS ISO 26684:2015Intelligent transport systems (ITS) Cooperative intersection signal i
25、nformation and violation warning systems (CIWS) Performance requirements and test procedures1 ScopeThis International Standard specifies the concept of operation, system requirements, and test methods for cooperative intersection signal information and violation warning systems (CIWS) at signalized
26、intersections. CIWS are intended to reduce the likelihood of crash injury, damage, and fatality by enhancing the capability of drivers to avoid crash situations at signalized intersections. The scope of CIWS standardization includes basic functions, functional requirements, performance requirements,
27、 information contents, and test methods.The characteristics of the technologies used to communicate between the signal controller and the vehicles are not addressed by this International Standard nor are the behavioural responses by drivers, the various capabilities of vehicles on the road, or the m
28、ultitude of combinations of these two characteristics.2 Normative referencesThere are no normative references cited in this document.3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1stopping distancedistance, Xv,travelled by a vehicle with the sp
29、eed of v, from the time the driver receives CIWS warning until the vehicle comes to a complete stopNote 1 to entry: This includes the distance travelled during the driver perception and reaction time.3.2speed of vehiclespeed of the subject vehicle, v3.3time to arrive at stop line of intersectionTTAI
30、time needed for a vehicle approaching the intersection at a speed of v to travel the distance, X, from its current location to the stop lineTTAIXv=3.4traffic signal phasegreen, yellow, and red intervals within a cycle that are assigned to an independent traffic movement or combination of movementsIN
31、TERNATIONAL STANDARD ISO 26684:2015(E) ISO 2015 All rights reserved 1BS ISO 26684:2015ISO 26684:2015(E)3.5stop linepavement marking line extending across approach lanes to indicate the point at which a stop is intended or required to be made3.6road side equipmentRSEroadside device that can supply tr
32、affic signal information to the approaching subject vehicle and may also support determination of vehicle position and heading3.7onboard equipmentOBEin-vehicle equipment that can provide drivers with information and/or warnings based on the information received from the RSE and the vehicle3.8spot co
33、mmunication mediawireless communication system between roadside and vehicles that operates only within such a small zone that the availability of the communication link can serve as a definitive indicator of the vehicles location in support of the intended application4 Symbolsd deceleration rate of
34、subject vehicle for stopping on level pavement (m/s2), assumed for the purpose of designing CIWS (could be specific for the vehicle type, weather conditions, and road gradient)G duration of green time (s)Grremaining green time (s)tDtotal time of information delay (s)tOBEthe time between when the OBE
35、 receives information from the RSE and when it displays a warningtOBE= tOBE1+ tOBE2where tOBE1includes communication delay and judgement processing in OBE and tOBE2is display delay to driver.tPRTdrivers perception-reaction time (PRT)tRSEthe time between when the RSE receives signal status informatio
36、n and when it broadcasts that informationv approach speed (m/s)VDesignmaximum speed of vehicle, assumed for the purpose of designing CIWS (m/s)X travel distance from the current position of the vehicle to the stop line (m)XALlocation of downloading information from RSE (m)Xv tvdAL D+DesignDesign222
37、ISO 2015 All rights reservedBS ISO 26684:2015ISO 26684:2015(E)NOTE: Location of the RSE is limited by the physical conditions of the road. If the RSE is located upstream than vDesign tD+ v2Design/(2 d), it can communicate the information in the timing required for warning.tD= tPRT+ tOBEXvstopping di
38、stance (m)Xvtvdv= +PRT22Y duration of yellow time (s)5 Classification5.1 System configurationThe system configuration should be in accordance with Figure 1.Vehicle interfaceVehicleinformation(optional)DriverinterfaceDisplayinformationInfrastructureinformationRoadsideequipment(RSE)On boardequipment(O
39、BE)Figure 1 System configuration5.2 System configurationIn order to reduce the likelihood of crash injury, damage, and fatality by enhancing the capability of drivers to avoid crash situations at signalized intersections, the CIWS application shall be classified as three types as shown in Table 1. C
40、lass I systems are intended to give information about the current phase of the traffic signal for enhancing the drivers awareness of the signal state. Class II systems are intended to provide an in-vehicle warning to the driver of an imminent traffic signal violation for enhancing the opportunity fo
41、r the driver to avoid the signal violation.Class III systems address future issues; they are intended to include the function of automatic brake control to reduce red light violations by inattentive drivers. ISO 2015 All rights reserved 3BS ISO 26684:2015ISO 26684:2015(E)Table 1 Classification of CI
42、WS applicationsClass Function Aims Driver support Infrastructure informationVehicle informationScopeI Information Information provisionCurrent state of traffic signalsSignal phase: (green/yellow/red) by directionDirection of travelYesTiming of signal changesSignal phase and timing by directionDirect
43、ion of travelFuture issueII Warning Avoiding violationSignal violation warningSignal phase and timing by directionDirection of travel, position, speed, TTAIYesIII Control Avoiding violationAssisted braking or automatic stoppingSignal phase and timing by directionDirection of travel, position, speed,
44、 TTAIFuture issue6 Functional requirements6.1 CIWS state diagramCIWS shall, at a minimum, operate according to the state diagrams as shown in Figures 2 and 3.OBEinactiveOBEactive(Displaying signalinformation)RSEinactiveRSEactiveRSE deactivation (2)RSE activation (1)Infrastructure informationInfrastr
45、ucture informationOBE activation (3)OBE deactivation (4)Figure 2 System state diagram Class I information4 ISO 2015 All rights reservedBS ISO 26684:2015ISO 26684:2015(E)OBEinactiveRSEinactiveRSEactiveRSE deactivation (2)RSE activation (1)OBE activation (3)OBE deactivation (4)Infrastructure informati
46、onInfrastructure informationOBEactiveWarningNowarningWarning deactivation (6)Warning activation (5)Figure 3 System state diagram Class II warning6.1.1 CIWS states6.1.1.1 CIWS statesState in which RSE is inactive.6.1.1.2 RSE activeState in which RSE is active and sends information on signal phase, et
47、c. to OBE.6.1.1.3 OBE inactiveState in which OBE is inactive.6.1.1.4 OBE activeState in which the OBE is active, (a) conditions of information provision are met and the system can provide information to driver (Class I) or (b) conditions of warning are met and the system can warn the driver (Class I
48、I).6.1.1.4.1 Warning stateState in which the warning requirements are fulfilled. In this state, a warning shall be issued to human-machine interface (HMI), which might arbitrate priorities relative to other warnings.6.1.1.4.2 No warning stateState in which the system shall give no warning to the dri
49、ver because the warning requirements are not met.6.2 Transition criteria6.2.1 Criterion (1): RSE activationWhen the RSE operator or the automatic system turns RSE on, it becomes active. ISO 2015 All rights reserved 5BS ISO 26684:2015ISO 26684:2015(E)6.2.2 Criterion (2): RSE deactivationWhen the RSE operator or the automatic system turns RSE off to discontinue the system due to failures and maintenance, etc., it becomes inactive.6.2.3 Criterion (3): OBE activationThe OBE becomes active when the accessory/i
