What component is connected to the odometer in a vehicle used for asphalt application?

The component that is connected to the odometer in a vehicle used for asphalt application is a rubber-tired wheel. This connection is crucial because the wheel's movement directly translates to the distance traveled by the vehicle. As the rubber-tired wheel rolls along the ground, it turns a gear mechanism attached to the odometer, registering the distance accurately. This data is essential for ensuring precise application rates of asphalt and for tracking the amount of material used over specific distances.

Other components like a GPS system or accelerometer may provide additional data related to speed or location but are not directly responsible for the measurement of distance as indicated by the odometer. Similarly, a temperature sensor monitors the temperature of the materials being applied but does not interact with the odometer function. Thus, the rubber-tired wheel is the critical component that facilitates the tracking of distance travelled in relation to the asphalt application.