WTORS Knowledge Centre

The Estraints WTORS Knowledge Centre brings together practical guidance on wheelchair securement, occupant restraint, wheelchair transportation standards, restraint geometry, inspection and training.

Free WTORS Technical Resources

Browse by topic

New technical comparisons: WC18 vs SAE J2249 | AS/NZS 10542.1 vs ISO 10542-1 | Wheelchair seat belt vs vehicle occupant restraint

WTORS & Securement | Standards & Compliance | Wheelchairs in Vehicles | Inspection & Operations | All Articles

Start with the WTORS fundamentals

• What Is WTORS?
• How to Secure a Wheelchair in a Vehicle
• What Is a Four-Point Wheelchair Tiedown?
• Wheelchair Docking vs Four-Point Tiedowns
• Five-Check Wheelchair Securement Checklist

Wheelchair occupant restraint & geometry

• Wheelchair Shoulder-Belt Geometry & Upper Anchorage Position
• Wheelchair Restraint Calculator
• Wheelchair Restraint Reports

Wheelchair transportation standards

• Compare Wheelchair Transportation Standards
• ISO 10542-1
• AS/NZS 10542.1
• RESNA WC18
• WC18 vs WC19
• ISO 7176-19 / WC19
• SAE J2249
• CSA Z605
• WTORS Compliance Guide

Wheelchairs used in vehicles

• Are All Wheelchairs Safe to Use as Seats in Vehicles?
• Transporting Powered Wheelchairs
• Wheelchair Space and Clearance Requirements
• Wheelchair Transport Safety Principles

Inspection & fleet operation

• When Should WTORS Belts and Components Be Replaced?
• WTORS for Community & Disability Transport Fleets
• Public Transit vs WAV Securement

Move from guidance to a geometry assessment

For installation or design work, review the measured-input workflow and report contents, then compare one-off and recurring calculator access. Free guidance and a geometry report do not replace the applicable equipment, installation and regulatory checks.

For WAV builders, installers & engineers

• WTORS Tools for WAV Builders & Engineers
• Estraints Technical Methodology
• Organisation & Volume Use

Planned training

Estraints is developing cross-brand WTORS courses for operators, installers, technical teams and supervisors. Register your interest for availability updates; these pathways are not currently an enrolment offer.

Explore WTORS Training

Glossary

New to wheelchair transportation terminology? Use the WTORS Glossary.

All articles

Browse the full Estraints article archive.

Content status: Updated by the Estraints Technical Team on 24 September 2026. See how Estraints develops and reviews technical guidance.