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I believe that they slang term for them is "rumblers." Their purpose is to alert you that you are crossing from one lane to another.

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Q: What are the yellow bumps separating the lanes called?
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What a solid yellow line?

That mean cannot park there . Another View: If it is in center of the roadway separating opposing lanes of travel it means NO PASSING.


What are weaving lanes?

crossing over the line white or yellow


A yellow centerline markings between lanes indicates that?

cross traffic


Why are there yellow lanes in the middle of an Olympic swimming pool?

Both lanes 4 and 5 are highlighted by using yellow lane ropes. The swimmers who compete in these lanes have either the fastest entry times or in the case of the final, the fastest qualifiying times. It is an advantage to swim in these lanes as often they are subject to less water turbulance than others. Spectators also can identify swimmers more easily by the use of the yellow lane markings.


What does two yellow painted on the road mean?

Not allowed to cross or change lanes


An HOV lane is marked with what?

HOV lanes are indicated by diamonds on pavement and on road signs; sometimes the lanes are called "diamond lanes."


Is lofting a violation of duck pin bowling rules and regulation?

yes. it creates bumps on the surface of the lanes which affect the roll of a bowling ball.


What does a double yellow line in the center of the highway mean in the US?

two different lanes


Indicate the center of a two-way road used for two-way traffic?

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.


Why there are markings of two parallel white lines and yellow lines on roads?

(in the US) They indicate a no passing zone. The white lines indicate multiple lanes of travel in the same direction, while the yellow lines indicate opposing lanes of travel.


Why are pedestrian lanes colored white or yellow and black?

Pedestrian lanes are coloured white, yellow or black to make them visible to the driver. It should be noted that glass is used in paints on roads so that they reflect off cars headlights- adding the the visibility.


Is it legal to cross a solid white line in the Lowry Tunnel in Minneapolis?

It is never legal to cross a solid un-broken lane separating traffic lanes. I have never driven through a tunnel in ANY state that allowed changing lanes wiithin the tunnel.