Usability Study of the Universal Anchorage System (UAS) for Child Restraint Systems (CRS) in School Buses and Passenger Vehicles

Abstract

There have been no usability studies assessing the new Child Restraint System (CRS) Universal Anchorage System (UAS) since the system's implementation in Canada in 2002. A Within-Subjects design research study involving forty-eight participants was conducted to evaluate how effectively users installed CRSs within a vehicle and a school bus when using different Lower Anchorage Connector (LAC) and Top Tether designs. The research indicates that users are not familiar with the UAS, and that safe installation of CRSs when using the UAS is not intuitive, resulting in significant installation safety errors. Furthermore, CRS users do not understand the severity of their installation errors, and the impact these errors have on compromising child safety. Industry and Regulators must increase UAS awareness, to inform users of the new UAS design and its components, and how the UAS impacts correct and safe CRS installation.

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References

Decina

Lococo

(2005). Child Restraint System Use and Misuse in Six States. Accident Analysis and Prevention, 37, 583–590.

International Organization for Standardization (ISO) (1999). ISO 13215-2: Requirements and test procedures for correct installation (panel method), part of Road Vehicles—Reduction of misuse risk of child restraint systems. Geneva, Switzerland.

Legault

(2004). School Bus Restraints for Small Children in Canada. Transport Canada Publication No. TP 14325-E.

National Highway Traffic Safety Administration (2005). Child Restraint Use in 2004 — Overall Results. DOT HS 809 845 Research Note.

Noy

I.Y.

Arnold

A-K

. (1995). Installing child restraint systems in vehicles: Towards Usability Criteria. Transport Canada Road Safety, Ergonomics Division — Technical Memorandum TME 9501.

Rudin-Brown

C.M.

Greenley

Barone

Armstrong

Salway

Norris

. (2004). Behavioural evaluation of child restraint system (CRS) label/warning effectiveness. Traffic Injury Prevention, 5, 1–10.

Rudin-Brown

C.M.

Kumagai

J.K.

Angel

H.A.

Iwasa-Madge

K.M.

Noy

I.Y.

(2003). Usability issues concerning child restraint system harness design. Accident Analysis and Prevention, 35, 341–348.

Transport Canada (2005). Keep Kids Safe: Car Time 1-2-3-4. Retrieved June 20, 2006 from http://www.tc.gc.ca/roadsafety/tp/tp13511/tips.htm.