It means one side of the road has two lanes and the other side has only one lane and that lane is you have to stay in between double solid yellow lins.
It means no passing.
(in the US) They both mean the same thing - NO PASSING AND/OR NO MOVING OUT OF THAT LANE. The double yellow line means that there is opposing traffic in the opposite direction and you may not pass. The solid white line means that although the traffic is moving in the same direction, you may not move out of that lane.
divided highway
A double solid yellow line in the center of the highway is there to separate the two directions of traffic. In most cases, you should not cross that line. On a two-lane road where passing is allowed, one line (or both) will usually become a dashed yellow line. Some locales do not allow turns off the highway across a double yellow line.
Double solid yellow is between two lanes of traffic with oppsing directions. This indicates no passing a vehicle that is traveling the same direction by moving to the oposing lane momentarily. You have to stay in your lane. Solid white is a line between two lanes going the same direction, but indicates changing lanes is not admissable unless safety concerns exist. Again, you have to stay in your lane.
No passing on your side.
No passing.
it means you cant cross it.
It means that your lane cannot pass.
No passing when driving in that direction while it is solid.
No passing by traffic travelling in your same direction.
No passing by traffic travelling in your same direction.
A double solid white line separates two lanes of traffic going in the same direction. Crossing a double solid line is prohibited.
stay in ur lane dont cross over