A diamond-shaped marking on the left lane shows that:

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The lane is reserved for state-owned vehicles.
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The lane is reserved for car-pool vehicles.
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This is an emergency-only lane.
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The lane is reserved for trucks and heavy vehicles.
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Explanation
A white diamond-shaped marking on the road indicates that the lane is reserved for specific types of vehicles, such as buses or carpools (HOV). These markings are used to identify restricted-use lanes and help manage traffic flow.
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Other questions in the same category: Pavement Markings
When the road is marked with a solid yellow line and a broken yellow line on your side, you may pass:____________________ are used on some highways to direct drivers into the proper lanes for turning.You may cross a single solid white line on the highway:When driving on a roadway with a single broken white line:Shared center lanes cannot be used for travel further than:A double solid yellow line in the center of a two-lane road means:If you see red reflectors facing you on the lane lines, you:A single dashed yellow line means:A single broken white line down the center of a two-lane road indicates:You may cross double yellow lines to pass another vehicle if:
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