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Laws and regulations to force hybrid and pure electric car makers develops vehicles that emit a noise to alert blind people to their presence are under consideration. If EVs will one day need to beep or purr for pedestrian safety, what might the ideal system sound like? Two students at Stanford think they know, and it's called PANDA.

You're probably familiar with the recent problems with quiet and silent vehicles and people with less-than-perfect sight. The National Federation of the Blind (NFB) has been on the case for a while, but there is one angle of their advocacy I didn't know about until Harper's printed the lyrics. The lyrics to what, you might ask? Well, the lyrics to a reworked version of the 1943 song Surry With the Fringe on Top (from Oklahoma!) and used by the NFB's Committee on Automobile and Pedestrian Safety.