INTERNATIONAL TELECOMMUNICATION UNION COLLABORATION ON INTELLIGENT TRANSPORT SYSTEMS COMMUNICATION STANDARDS TELECOMMUNICATION STANDARDIZATION SECTOR ITS-DOC-6 English only STUDY PERIOD 2013-2016 Original: English Arlington, 7 December 2015 WG(s): DOCUMENT Source: TTC (Smart Car sub-committee) Title: Comment on the standardization of Taxonomy of Automated Driving Systems Summary TTC supports the standardization activity in ITU-T SG16 for F.AUTO-TAX, Taxonomy for ICTenabled motor vehicle automated driving systems. This contribution provides the opinion of TTC Smart Car Sub-Working Group on the standardization of Taxonomy of Automated Driving Systems. 1 Introduction Recently the needs for the automated driving systems are highly envisaged in worldwide, and TTC would like to express their support for the standardization effort for ICT-enabled motor vehicle automated driving systems, developing draft Recommendation ITU-T F.AUTO-TAX in ITU-T SG16. There should be many different scenarios for ICT enabled automated driving systems depending on the use cases. This document provides TTC’s high-level comments on the direction for the development of draft Recommendation F.AUTO-TAX. TTC also thinks it important to define the functionalities required for automated driving. 2 Discussion 2.1 Use case/usage scenario dependency of Taxonomy Requirements and functionalities for ICT enabled automated driving systems should be differently categorized depending on their use cases/usage scenarios. So, it is envisaged that single common taxonomy applied to all use cases/usage scenarios should be difficult Contact: Yasubumi Chimura Leader of Smart Car Subworking Group, TTC Tel: +03 3501 3833 Fax: Email: Chimura730@oki.com (OKI Electric) Japan Contact: Yushi Naito Sub-leader of Smart Car Subworking Group, TTC Tel: +81 467 41 2449 Fax: +81 467 41 2019 Email: Yushi.Naito@ties.itu.int (Mitsubishi Electric Corporation) Japan Attention: This is not a publication made available to the public, but an internal ITU-T Document intended only for use by the Member States of ITU, by ITU-T Sector Members and Associates, and their respective staff and collaborators in their ITU related work. It shall not be made available to, and used by, any other persons or entities without the prior written consent of ITU-T. -2ITS-DOC-6 to be developed. TTC considers that the Taxonomy should be developed appropriately on plural use cases/usage scenarios. 2.2 Examples of use cases/usage scenarios Followings are the examples of different use cases/usage scenarios from the view point of functionalities and/or regal complexities; 2.2.1 Road driving and Parking Requirements/functionalities for road driving and parking should be considered to be quite different, and the implementation of regulations by the administrations for such use cases is likely to be different in time frame. . 2.2.2 Driving in public roads and in closed area The categorization for such use cases might be better to be differentiated by the road conditions, such as open road and closed areas including parking lots and farms. 2.2.3 Single vehicle driving and platoon-vehicles driving Requirements and functionalities for single vehicle driving and platoon-vehicles driving, and the application of regulations for these two use cases should also be quite different in terms of regal responsibilities and implementation time frame.. 2.2.4 Head vehicle and followers Requirements/functionalities for head-vehicles and followers should be quite different since there should be a driver in the head-vehicles and no driver in the followers 2.2.5 Driving in open road and motor ways Requirements for the car driven in open roads and in motorways should also be different. It is proposed first to survey the types of different use cases and usage scenarios, and then combine them into smaller number of groups that can be considered to be essential for different types of taxonomies. 2.3 Definitions of functionalities Not only defining Taxonomies for automated driving, making definitions for functionalities necessary for automated driving should be important. TTC encourages ITU-T SG16 to study the definitions of functionalities necessary for automated driving, such as automated braking, automated parking, route selection, changing lanes, platoon vehicle driving, etc. for example. 3 Proposal For the standardization of taxonomies for automated driving, first review the use cases/usage scenarios, and then develop the minimum set of taxonomies for essential use cases/usage scenarios. It is also proposed to define the functionalities necessary for automated driving. TTC wishes these comments to be discussed during CITS meeting to be held in Arlington USA, 7 December 2015 kindly hosted by TIA. _________________