In-vehicle apparatus

An in-vehicle apparatus to be applied to a vehicle, the in-vehicle apparatus comprising:

• a load weight information obtainer configured to acquire a load weight of a load placed on a roof rail or a roof carrier of the vehicle;
• a load information obtainer configured to acquire load information including a size and a shape of the load from image data on the load;
• an aerodynamic analyzer configured to execute an aerodynamic analysis based on the load information acquired by the load information obtainer;
• a driving stability determiner configured to determine driving stability in travel of the vehicle based on at least the load weight and a result of the aerodynamic analysis executed by the aerodynamic analyzer;
• a control processor configured to perform control adapted to prohibit the vehicle from traveling when the driving stability determiner determines that the driving stability is not to be sufficiently secured in the travel of the vehicle;
• and
• a proposer configured to give a proposal on an appropriate loading way to place the load on the vehicle.