It means that you can pass other cars. When the line is solid, it means that passing is not allowed.
In the UK a single broken yellow line at the side of the road indicates there is restricted parking in force.
That you can pass someone if they are going too slow on your side. Make sure that no cars are coming on the other side.
those are parking lines
Give the right of way to oncoming traffic
Yellow or white
Either yellow or white
If the broken yellow is on YOUR side, you may pass when safe to do so. You must have your car back in your lane before the lines become double solid yellow. If the broken line is on the other side, that lane may pass if safe to do so. If a stretch of road has only a broken yellow line, either lane may pass IF safe but you must now be extra cautious as to what drivers intend to do.
If the broken yellow is on YOUR side, you may pass when safe to do so. You must have your car back in your lane before the lines become double solid yellow. If the broken line is on the other side, that lane may pass if safe to do so. If a stretch of road has only a broken yellow line, either lane may pass IF safe but you must now be extra cautious as to what drivers intend to do.
false
for passing other cars
A solid yellow line to the right of a broken yellow center line
Drivers from either direction may use the center lane for left turns.
Yellow on a two way road with one lane of traffic in each direction. White on one way streets, except for restricted or turn lanes. (U.S.)
ON A ONE-WAY ROADWAY EACH LANE IS MARKED WITH A BROKEN WHITE LINE,YOU MAY DRIVE ANY LANE
A broken yellow line indicates a passing zone. It is illegal to cross a double yellow line, unless you are avoiding an obstruction in your lane. So passing zones are marked out where driver's can safely pass one another (usually areas where you can see at least a mile down the road). When the broken yellow is on your side of the road, you are legally allowed to pass the vehicle in front of you, if you can do it safely. If the broken yellow is on the other lane (your side has a single yellow line), you may not cross into the next lane.
on a one-way roadway when each lane is marked with a broken white line, you may drive in any lane