ISO 22737:2021 PDF

Intelligent transport systems — Low-speed automated driving (LSAD) systems for predefined routes — Performance requirements, system requirements and performance test procedures

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Title (English):

ISO 22737:2021

Intelligent transport systems — Low-speed automated driving (LSAD) systems for predefined routes — Performance requirements, system requirements and performance test procedures

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 43
Publication date:: July 6, 2021
Edition:: ISO IS 22737 edition 1 version 1
ICS:: 03.220.20

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Description (English):

This document specifies: — requirements for the operational design domain, — system requirements, — minimum performance requirements, and — performance test procedures for the safe operation of low-speed automated driving (LSAD) systems for operation on predefined routes. LSAD systems are designed to operate at Level 4 automation (see ISO/SAE PAS 22736), within specific operational design domains (ODD). This document applies to automated driving system-dedicated vehicles (ADS-DVs) and can also be utilized by dual-mode vehicles (see ISO/SAE PAS 22736). This document does not specify sensor technology present in vehicles driven by LSAD systems.

Technical details

Technical committee: ISO/TC 204 - Intelligent transport systems
SKU: ISO 22737:2021

Abstract

Overview

ISO 22737:2021 - Intelligent transport systems - Low-speed automated driving (LSAD) systems for predefined routes - specifies performance requirements, system requirements and performance test procedures to ensure the safe operation of LSAD systems operating at Level 4 automation. The standard covers LSAD operation on predefined routes and applies to automated driving system-dedicated vehicles (ADS‑DVs) and can be used for dual‑mode vehicles. Sensor technology choices are intentionally not specified.

Key topics and technical requirements

Operational Design Domain (ODD): Requirements for defining the ODD where the LSAD can safely operate (route geometry, environmental limits, speed ranges).
System requirements: Functional expectations including communication interfaces, data recording for safety‑critical events, and emergency stop (e‑stop) behavior.
Performance requirements: Minimum capabilities such as maximum subject vehicle speed, obstacle detection (pedestrians, pedal cyclists) and deceleration behavior to avoid or mitigate collisions.
Functional behavior: Procedures for hazardous situation detection, minimal risk manoeuvre (MRM) execution, driving within the defined drivable area, and state transition logic for LSAD operation (including possible dispatcher inputs).
Performance test procedures: Standardized tests for hazardous situations (pedestrian, cyclist, cornering), drivable‑area assessments, false‑positive scenarios, and MRM validation. Environmental and vehicle parameterization for repeatable testing are included.
Data and communications: Requirements for recording system data about safety‑critical events and example message/data recorder structures in informative annexes.

Applications and users

ISO 22737:2021 is targeted at stakeholders involved in the design, deployment and regulation of low‑speed automated services, including:

Manufacturers and system integrators developing LSAD solutions for last‑mile transit, campus/shuttle services, commercial/industrial sites.
Operators and fleet managers procuring and validating LSAD vehicles and route deployments.
Test laboratories and certification bodies performing standardized performance and safety tests.
Regulators and procurers who need a benchmark for minimum safety and operational criteria for Level 4 low‑speed services. Practical applications include on‑demand shuttles, university or business campus transport, and closed‑site logistics at low speeds.

Related standards

ISO/SAE PAS 22736 (taxonomy and definitions for driving automation)
ISO 26262 (functional safety for road vehicles)
ISO 21448 (Safety of the Intended Functionality - SOTIF)
ISO 19206 series (test devices for pedestrian and bicyclist targets)

Keywords: ISO 22737:2021, LSAD, low‑speed automated driving, predefined routes, Level 4 automation, ODD, ADS‑DV, performance test procedures.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and technical requirements

Operational Design Domain (ODD): Requirements for defining the ODD where the LSAD can safely operate (route geometry, environmental limits, speed ranges).
System requirements: Functional expectations including communication interfaces, data recording for safety‑critical events, and emergency stop (e‑stop) behavior.
Performance requirements: Minimum capabilities such as maximum subject vehicle speed, obstacle detection (pedestrians, pedal cyclists) and deceleration behavior to avoid or mitigate collisions.
Functional behavior: Procedures for hazardous situation detection, minimal risk manoeuvre (MRM) execution, driving within the defined drivable area, and state transition logic for LSAD operation (including possible dispatcher inputs).
Performance test procedures: Standardized tests for hazardous situations (pedestrian, cyclist, cornering), drivable‑area assessments, false‑positive scenarios, and MRM validation. Environmental and vehicle parameterization for repeatable testing are included.
Data and communications: Requirements for recording system data about safety‑critical events and example message/data recorder structures in informative annexes.

Applications and users

ISO 22737:2021 is targeted at stakeholders involved in the design, deployment and regulation of low‑speed automated services, including:

Manufacturers and system integrators developing LSAD solutions for last‑mile transit, campus/shuttle services, commercial/industrial sites.
Operators and fleet managers procuring and validating LSAD vehicles and route deployments.
Test laboratories and certification bodies performing standardized performance and safety tests.
Regulators and procurers who need a benchmark for minimum safety and operational criteria for Level 4 low‑speed services. Practical applications include on‑demand shuttles, university or business campus transport, and closed‑site logistics at low speeds.

Related standards

ISO/SAE PAS 22736 (taxonomy and definitions for driving automation)
ISO 26262 (functional safety for road vehicles)
ISO 21448 (Safety of the Intended Functionality - SOTIF)
ISO 19206 series (test devices for pedestrian and bicyclist targets)

Keywords: ISO 22737:2021, LSAD, low‑speed automated driving, predefined routes, Level 4 automation, ODD, ADS‑DV, performance test procedures.

ISO 22737:2021 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Applications and users

Related standards

Related standards

Road vehicles — Functional safety — Part 10: Guideline on ISO 26262

Road vehicles — Safety of the intended functionality

Road vehicles. Test devices for target vehicles, vulnerable road users and other objects, for assessment of a…