Auto Service World
News   April 9, 2008   by Auto Service World

Hybrids a Danger to the Blind?

Hybrids represent a significant danger to the blind due to their low noise production, acording to a U.S. based advocacy group.In the spring of 2007, SAE International was approached by the National Federation of the Blind (NFB) regarding a concern about visually-impaired pedestrians involved in traffic incidents with hybrid vehicles.
The concern focused on the quiet operation of hybrid vehicles at low speeds.
Based on the NFB’s request, SAE International Motor Vehicle Council asked the Hybrid Electric Vehicle (HEV) Technical Committee to study this concern.
The HEV technical committee concluded that this concern did merit more study, but recognized that it required different expertise than the members of that committee could provide.
The responsibility for this issue was then transferred to the SAE Safety & Human Factors Committee, which formed the Vehicle Sound for Pedestrians (VSP) subcommittee at its November 2007 meeting.
The VSP subcommittee was formed and has met monthly in 2008.
This subcommittee is made up of stakeholders from several different backgrounds and organizations including: representatives of the blind community, government agencies, academics and automakers.
The VSP subcommittee is first working to accurately define this issue.
While working to define the issues, the subcommittee also is working to understand the conditions where these types of incidents are likely to occur (example: alley and street intersections; at stop lights, etc.)
As these factors are better understood, the subcommittee will propose and evaluate different methods and/or countermeasures to address the issues.
Even though the subcommittee’s initial focus is only on hybrid vehicles, any data collected or generated in understanding the issues could eventually include other vehicle types besides hybrids.
The VSP subcommittee plans to issue a technical report or recommended practice by the end of 2008 based on its analysis of pedestrian safety issues related to the quiet operation of hybrid vehicles and its identification and evaluation of potential countermeasures to address these issues.

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