Use Case 2: Read conditions of roads

Use Case 2: Read conditions of roads

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  This use case will happen continuously.
  
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  This may fail due to lack of power, or by a failure in the sensors or signal transmission. Failures can be detected by a loss of data or receiving inconsistent data in the control box. Power may be lost in low speed environments, in which case the computer will ignore the failure. Any other failures will prompt a notification to the driver.
  
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  Figure 5 describes this use case.
  

Figure 5: Activity diagram for reading road conditions