75 feet
The difference between a road lane and a line is the direction of travel on the roadway. In a road lane situation, there are usually two lanes divided by a white dotted line, traveling in the same direction. If there is a center line, (yellow solid or yellow dotted) the direction of travel is one lane each way.
The lines on the road are markers for you to stay between. The white line and yellow center line (on a two lane road) should not be touched by car tires, but should be driven between to stay an average of the center of the space.
A two lane roadway usually has a yellow dotted line down the center separating traffic lanes. When the line changes to a solid line, it means "No Passing". If the solid line is to the right of center then that lane has a "No Passing" restriction. When there is a double yellow line, there is "No Passing" in either direction.
outside lane is the lane nearest edge of road inside line is lane closest to the middle of the road
On a two lane road with a center lane, the center lane is used for left turns going either direction. If on a 4 lane road with a center divider then the left lane is where you should be, unless there is a left turn pocket at the intersection. If on a two lane road with no center lane then you execute the left turn from the forward travel lane that you are in. In all cases be certain to use your turn indicators to let those following you know of your intentions.
Lane markings on roads are very important; they let the driver know the rules of the road. Solid centerlines usually yellow or white indicate the driver should not cross the line and stick to their side of the road to prevent accidents.
Two way traffic - the lane with the broken side is permitted to cross over to the other side to pass, the lane with the solid line is not.
on the center of the road
Neither lane is permitted to pass and overtake other vehicles, and the two lanes travel in opposing directions.
When there is a broken white or yellow line in the middle like dashes.
That depends on which side of the road you are driving. Some countries drive on the opposite side of the road to the country in which you live and as you have not made it clear which country you live in we can not answer your question.
Median line.