Systemic safety analysis of a tram door system considering increasing level of automation

Risto Tiusanen; Eetu Heikkilä; Timo Malm; Tero Välisalo; Mikko Hämäläinen; Matias Järvinen

Systemic safety analysis of a tram door system considering increasing level of automation

Risto Tiusanen, Eetu Heikkilä, Timo Malm, Tero Välisalo, Mikko Hämäläinen, Matias Järvinen

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Abstract

Increasing level of automation is a major trend in passenger railway systems, and unattended train operations at GoA4 (Grade of Automation) are being studied also for light rail systems and trams. Trams operate in an open environment, resulting in high complexity of automated operations - thus requiring thorough identification of related safety hazards and risks. In this paper, we focus on the door system of an automated tram concept. First, we describe the expected changes required in the operational principles and technical implementation of the tram door system to enable the transition from GoA1 level to GoA4. Second, we describe selected key results of systemic STPA hazard analyses applied on an example tram door system at GoA1 and GoA4 to highlight key changes between the automation levels. The results can be applied to support development of GoA4 capable tram door systems.

Original language	English
Number of pages	8
Publication status	Published - 2022
MoE publication type	Not Eligible
Event	Transport Research Arena 2022 - Lisbon, Portugal Duration: 14 Nov 2022 → 17 Nov 2022 https://traconference.eu/

Conference

Conference	Transport Research Arena 2022
Abbreviated title	TRA 2022
Country/Territory	Portugal
City	Lisbon
Period	14/11/22 → 17/11/22
Other	Conference Proceedings shoud be published in February.
Internet address	https://traconference.eu/

Keywords

Automatic train operation
Unattended train operation
Risk analysis
Hazard analysis
STPA

Access to Document

TRA2022_Systemic safety analysis_PaperAccepted author manuscript, 258 KB

SmartRail#2: SmartRail 2. innovation phase
Hautala, R. (Manager), Lusikka, T. (Participant), Mononen, P. (Participant), Pihlajamaa, O. (Participant), Lamuela Orta, C. (Participant), Isola, R. (Participant), Nieminen, V. (Participant), Karvinen, A. (Participant), Lahti, J. (Participant), Heino, I. (Participant), Aromaa, S. (Participant), Salonen, T.-T. (Participant), Laarni, J. (Participant), Harviainen, T. (Participant), Tiusanen, R. (Participant), Virtanen, J. (Participant), Heikkilä, E. (Participant), Siilin, N. (Participant), Väätänen, A. (Participant), Viitanen, T. (Participant), Savolainen, M. (Participant) & Lammi, H. (Participant)
1/09/19 → 31/12/23
Project: Business Finland project

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Cite this

@conference{138ab8841d594ed98f24dc14ccdc8aa1,

title = "Systemic safety analysis of a tram door system considering increasing level of automation",

abstract = "Increasing level of automation is a major trend in passenger railway systems, and unattended train operations at GoA4 (Grade of Automation) are being studied also for light rail systems and trams. Trams operate in an open environment, resulting in high complexity of automated operations - thus requiring thorough identification of related safety hazards and risks. In this paper, we focus on the door system of an automated tram concept. First, we describe the expected changes required in the operational principles and technical implementation of the tram door system to enable the transition from GoA1 level to GoA4. Second, we describe selected key results of systemic STPA hazard analyses applied on an example tram door system at GoA1 and GoA4 to highlight key changes between the automation levels. The results can be applied to support development of GoA4 capable tram door systems.",

keywords = "Automatic train operation, Unattended train operation, Risk analysis, Hazard analysis, STPA",

author = "Risto Tiusanen and Eetu Heikkil{\"a} and Timo Malm and Tero V{\"a}lisalo and Mikko H{\"a}m{\"a}l{\"a}inen and Matias J{\"a}rvinen",

note = "Not in proceedings.; Transport Research Arena 2022, TRA 2022 ; Conference date: 14-11-2022 Through 17-11-2022",

year = "2022",

language = "English",

url = "https://traconference.eu/",

}

TY - CONF

T1 - Systemic safety analysis of a tram door system considering increasing level of automation

AU - Tiusanen, Risto

AU - Heikkilä, Eetu

AU - Malm, Timo

AU - Välisalo, Tero

AU - Hämäläinen, Mikko

AU - Järvinen, Matias

N1 - Not in proceedings.

PY - 2022

Y1 - 2022

N2 - Increasing level of automation is a major trend in passenger railway systems, and unattended train operations at GoA4 (Grade of Automation) are being studied also for light rail systems and trams. Trams operate in an open environment, resulting in high complexity of automated operations - thus requiring thorough identification of related safety hazards and risks. In this paper, we focus on the door system of an automated tram concept. First, we describe the expected changes required in the operational principles and technical implementation of the tram door system to enable the transition from GoA1 level to GoA4. Second, we describe selected key results of systemic STPA hazard analyses applied on an example tram door system at GoA1 and GoA4 to highlight key changes between the automation levels. The results can be applied to support development of GoA4 capable tram door systems.

AB - Increasing level of automation is a major trend in passenger railway systems, and unattended train operations at GoA4 (Grade of Automation) are being studied also for light rail systems and trams. Trams operate in an open environment, resulting in high complexity of automated operations - thus requiring thorough identification of related safety hazards and risks. In this paper, we focus on the door system of an automated tram concept. First, we describe the expected changes required in the operational principles and technical implementation of the tram door system to enable the transition from GoA1 level to GoA4. Second, we describe selected key results of systemic STPA hazard analyses applied on an example tram door system at GoA1 and GoA4 to highlight key changes between the automation levels. The results can be applied to support development of GoA4 capable tram door systems.

KW - Automatic train operation

KW - Unattended train operation

KW - Risk analysis

KW - Hazard analysis

KW - STPA

M3 - Conference Poster

T2 - Transport Research Arena 2022

Y2 - 14 November 2022 through 17 November 2022

ER -

Systemic safety analysis of a tram door system considering increasing level of automation

Abstract

Conference

Keywords

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Projects

SmartRail#2: SmartRail 2. innovation phase

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