As concerns over high gas prices, pollution, and conservation rise, so does the number of hybrids and electric cars on public streets. While these vehicles consume less resources, they also produce less noise, which for the most part is great, but at low speeds some are virtually silent thus making them a hazard to others sharing the road. Headlights and running lights are used to make oneself seen, similarly sound solutions are being called for and developed to make oneself heard. If vehicle manufactures don't proactively institute a solution themselves, then governments may form various commitees that will then each pass a different set of standards for each of their respective jurisdictions.
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