Unless otherwise posted it is illegal to travel faster than 70 miles per hour on a highway or 55 miles per hour on a two-lane undivided highway
<h3>Which speed is considered to be the healthiest on a highway?</h3>
If there is no posted speed limit sign and you are travelling on a two-lane roadway, the speed limit is 55 mph. As different states have their laws, this may also depend on the state you are driving in.
In most states, if the speed limit is posted, it is 65 miles per hour. If the speed limit is not stated on a major interstate, it is typically 70 miles per hour. The posted speed limit can be 75 mph. Typically, the speed limit on all rural interstates is 75 mph, though this varies by state.
Learn more about speed limits here:
brainly.com/question/14651225
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