Driving at a speed that is Not Safe for Conditions, due to weather, traffic, pedestrians, lighting, road conditions, et cetera.

However, the Use of Radar or Laser by a Police Officer is Illegal - unless a Valid Engineering and Traffic Survey is on file, which justifies the "Posted Speed Limit. Generally, these Traffic Surveys are inadequate and the cases are dismissed.

Driving on Freeway in excess of the Posted Maximum Speed Limit, i.e., 55, 65 or 70 MPH.

Driving on a street, freeway or highway in Excess of 100 MPH

Trucks [or vehicles towing a trailer] cannot drive at a speed in excess 55 MPH.