A work vehicle has a transmission controller that is configured to determine the direction of travel of the vehicle based upon the state of the transmission. The transmission controller is also configured to communicate this information to navigation system to assist the navigation system in determining the vehicle's movement. The transmission controller determines the direction of travel based upon looking at the clutch state and the vehicle speed.

 
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< Technique for collecting data from vehicles for analysis thereof

> Data structure of feature guidance information, recording medium storing feature guidance information, navigation device, navigation system, navigation method, navigation program and recording medium storing the navigation program
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