It is never legal no matter the color. (USA)
The gist of which is "A single SOLID white lane line indicates that crossing the line to change lanes is discouraged, for example when a separate turn lane is provided."
According to SC Highway Patrol, A solid single line should never be crossed. Only those solid lines that are accompanied with hash marks indicate a turn lane. Therefore, a single solid white line should not be crossed.
http://www.direct.gov.uk/en/TravelAndTransport/Highwaycode/DG_070202
Rule 129You MUST NOT cross or straddle double white lines in normal driving. Exceptions are: if it is safe to do so and you need to enter premises adjoining the carriageway or a side road. In addition, it is permissible to cross the line as necessary and provided the road is clear, to pass a stationary vehicle. Or to overtake a horse, pedal cycle or road maintenance vehicle, only if they are not travelling at speeds greater than 16 km/h (10 mph). You can also cross double white lines when ordered to do so by a policeman in uniform.
See also: Road Traffic Act 1988 sect 36 & TSRGD regs 10 & 26]
In MICHIGAN(as quoted from: http://www.Michigan.gov/som/0,1607,7-192----S,00.html)
Solid white lines: Solid white lines mark the right edge
of the road. Often called fog lines, solid white lines help
you stay on the road at night or in bad weather. Passing
to the right of another vehicle by crossing a solid white
line that marks the right edge of the roadway is prohibited,
even if the shoulder is paved.
Solid white lines are also used to separate lanes of traffic
moving in the same direction. When solid white lines
separate lanes of traffic moving in the same direction,
crossing a solid white line is not recommended. These
white lines may designate sharp curves, freeway
acceleration and deceleration lanes, and other parts of
the road where lane changes are considered dangerous.
A double solid white line is used to show a travel path
where driving in the same direction is permitted on both
sides of the line, but crossing the line is prohibited.
yep, your not supposed to. In an intersection such as a stoplight it is illegal and you can get a ticket for illegal lane change.
There is nothing "not supposed to" about it.
Crossing a single white line between lanes traveling in the same direction
as your travel is discouraged but not illegal.
Furthermore, where have ever seen an intersection, with a traffic light,
or stop light for that matter, that has painted lines of any type going
across it?? I haven't but I could be mistaken. Please enlighten me if
you've ever seen this, and tell us exactly WHERE you've seen this!
The law is that it is not legal to cross a solid white line in cobb county.
NO
Crossing a solid white line is against all states traffic laws. The solid line indicates that you can not cross over at any point. You may only cross over dotted lines.
no u can not
You're supposed to have exited the lane well before the white line turns solid. You're not supposed to cross over a solid line - either white or yellow - for any reason, emergencies notwithstanding.
do not cross to change lanes or pass
No
It's discouraged, but not illegal.
No, it is not.
It is legal. The white solid line in refrence I believe is a cautionary passing line. Meaning: have caution while crossing over to the next lane. This is also between the HOV lane and the regular traffic lanes on the freeways. However, it is illegal to cross double solid lines. This is not a passing nor crossing zone.
A solid yellow line means that you are not allowed to cross over or pass, but a dotted white, or yellow line means that you can cross over or pass.
Entering and exiting the carpool lane on the freeway is regulated by the type of line on the right hand side of the lane. The driver can enter or exit the lane only when the lane is not bordered by a white solid line.