A control arrangement for a first vehicle (100, 102), the control arrangement being provided on-board the first vehicle (100, 102) and comprising a control unit, a sensor arrangement and means for determining the current geographical location of the first vehicle (100, 102), wherein the control unit is adapted to: - receive information relating to a current geographical location of the first vehicle (100, 102) from the means for determining the current geographical location of the first vehicle (100, 102), and - send a request for a portion of map data from a first data source relating to the current location of the first vehicle (100, 102), wherein the first data source is arranged remote from the first vehicle (100, 102) and comprises map data for a plurality of geographical locations and each portion of the map data relates to environmental information for the related geographical location, wherein the control unit is further adapted to: if map data is indicated as available from the first data source for the current geographical location: - apply the map data for controlling at least one parameter for operating the first vehicle (100, 102), characterized in that the control unit is further adapted to: if map data is indicated as unavailable from the first data source for the current geographical location: - receive environmental information relating to the operation of the first vehicle (100, 102) from the sensor arrangement, the sensor arrangement being adapted to collect environmental information relating to the operation of the first vehicle (100, 102) and preferably further comprising means for determining a current inclination at the current geographical location, - attach a geographical tag relating to the current geographical location to the environmental information for the current location, - establish a network connection with a second data source, wherein the second data source is arranged remote from the first vehicle (100, 102), adapted for storage of environmental information, and different from the first data source, and - provide the geographically tagged environmental information for storage at the second data source. - receive information relating to a current geographical location of the first vehicle (100, 102) from the means for determining the current geographical location of the first vehicle (100, 102), and - send a request for a portion of map data from a first data source relating to the current location of the first vehicle (100, 102), wherein the first data source is arranged remote from the first vehicle (100, 102) and comprises map data for a plurality of geographical locations and each portion of the map data relates to environmental information for the related geographical location, - apply the map data for controlling at least one parameter for operating the first vehicle (100, 102), characterized in that the control unit is further adapted to: if map data is indicated as unavailable from the first data source for the current geographical location: - receive environmental information relating to the operation of the first vehicle (100, 102) from the sensor arrangement, the sensor arrangement being adapted to collect environmental information relating to the operation of the first vehicle (100, 102) and preferably further comprising means for determining a current inclination at the current geographical location, - attach a geographical tag relating to the current geographical location to the environmental information for the current location, - establish a network connection with a second data source, wherein the second data source is arranged remote from the first vehicle (100, 102), adapted for storage of environmental information, and different from the first data source, and - provide the geographically tagged environmental information for storage at the second data source.