Evaluation of Bus Vibration Comfort Based on Passenger Crowdsourcing Mode

Table 1

Parameters of acceleration and orientation sensor built-in smartphone.

Sensor	Data	Description
Acceleration sensor	A_values	Acceleration along the -axis (including gravity)
	A_values	Acceleration along the -axis (including gravity)
	A_values	Acceleration along the -axis (including gravity)
Orientation sensor	O_values	Azimuth, the angle between -axis and the magnetic North Pole (0° to 360°)
	O_values	Pitch, the angle between -axis and horizontal plane (−180° to 180°)
	O_values	Roll, the angle between -axis and horizontal plane (−90° to 90°)