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Message: <blockquote data-quote="Troy" data-source="post: 1163837" data-attributes="member: 38689">Green1,A difficulty with making rules is they sometimes apply in unintended situations. I understand that you want the car to brake if there were lane markings before the blue car turned right in the video. My argument is, such a rule would apply in a lot of unwanted situation which would be dangerous. When making rules, it is not sufficient to imagine situations where the rule should apply. It is also necessary to imagine all situations where it shouldn't apply. The rule you suggested would have the same outcome as "apply brakes when driving on a curved road following a car TACC is locked to if there are parked cars around me and some lane markings." In other words you are telling TACC to ignore the car you are following and apply brakes at high speed randomly just because some other secondary criteria.  Here is an example: [ATTACH=full]95339[/ATTACH]Imagine the traffic is clogged and there are parked cars in front of you just before the turn but there is enough gap to take the turn at high speed. As you cross the lines suddenly the brakes apply with full force. Would you want that? Of course not.When TACC is locked to the car in front of you, the assumption is you are following that car. Whether there are parked cars around you or lane markings is not a strong enough reason to invalidate this assumption. That's why Tesla doesn't apply such a rule based on secondary criteria like not using the turn signal, crossing lane markings or parked cars around you. - - - Updated - - -Maybe someone can recreate the situation in the video to see if anything has changed.</blockquote>

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