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All the data in the 2018-2019 State of the Trails Report was collected <br />by the , a Stromer ST2 electric-assist bicycle <br />equipped with sensors and multiple cameras to collect data on trail <br />conditions. The Research Bike logged 1,355 trail miles between July and <br />September of 2018 and collected three types of data: 39,726 panoramic <br />photos published on Google Map’s Street View app; a comprehensive <br />database of 65,834 trail condition photos available on our website; and <br />532,912 accelerometer data points that indicate how rough (or smooth) <br />each mile of state trail is to ride. <br />1 <br />3 <br />2 <br />An Insta360 One camera <br />mounted above the rider’s <br />head takes 360° photos for <br />Google Street View. <br />The SensorLog app on <br />an iPhone SE records <br />accelerometer data used to <br />rate trail roughness. <br />A rear-facing GoPro Hero 5 <br />camera takes up-close, <br />geo-located photos of <br />trail conditions. <br />1 32 <br />About the Research Bike <br />i STATE of the TRAILS