Intelligent speed adaptation

Intelligent Speed ​​Adaptation (ISA ) ( German: Intelligent Speed ​​Assistance ) is a driver assistance system to assist the driver in complying with the current speed limit on the instantaneous traffic road section. The speed limits are either stored in a digital map in the navigation system and / or determined by a traffic sign recognition. While digital maps minute changes to the allowed speed, for example on construction sites can be updated only with great effort, fight traffic character recognition with the assignment of the recognized characters to the right lane.

When ISA, which is favored in Sweden and the United Kingdom, engages an electronic (partly also against the will of the driver ) externally controlled in the speed dial one.

Alternatively, so-called Speed ​​Limit Info system developed that inform the driver only on the current speed limit and / or warn when exceeding.

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