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As varied as the options are for apps that are available to help you navigate your daily commute, the future of GPS may be more accurate. Lizzie Roberts/Ikon Images/Corbis hide caption

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Lizzie Roberts/Ikon Images/Corbis

The Tech Behind Traffic Apps: How (Well) Do They Work?

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Unless there's a serious pileup, ants in traffic tend to bypass a collision and just keep going. A physicist has found a way to model this behavior with a mathematical equation. iStockphoto hide caption

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iStockphoto

Why Ants Handle Traffic Better Than You Do

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MMDA (Metro Manila Development Authority) traffic enforcers patrol a street on their Segway vehicles in a 2011 photo. During a visit by Pope Francis next week, they are being asked to wear adult diapers so they won't have to leave their posts. Bullit Marquez/AP hide caption

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Bullit Marquez/AP

Traffic engineers face "a new conundrum" in dealing with red-light cameras such as this one in New Mexico, according to a recent study looking at how cameras are operated and the perception that they are used to generate revenue. Susan Montoya Bryan/AP hide caption

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Susan Montoya Bryan/AP