Check out the video here to see how the Smart Helmet works in New York City.
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As helpful as the Citi Bike program is, one thing that is still a bit tricky is knowing where exactly docking stations are located, but the Citi Bike Smart Helmet is being introduced to help with this problem. The Carrera foldable hemet has been modified with LED strip lights embedded into the groves of the helmet, a FLORA accelerometer, compass and FLORA GPS to help guide the rider to the nearest docking station: http://www.ubergizmo.com/2013/06/citi-bike-smart-helmet-helps-guide-riders-to-nearest-docking-station/