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A J-turn is a driving maneuver in which a reversing vehicle is spun 180 degrees and continues, facing forward, ... a "reverse 180", a reverse flick, a "Rockford Turn
Making a U-turn on a curve, a slope, a narrow road, a narrow bridge, or a tunnel. Making a U-turn at a road segment signed No U-turn or painted double solid yellow or white lines or no-overtaking lines. Making a U-turn at a road segment prohibiting left turn. Not surrounding a roundabout to make a U-turn in such an intersection.
Flagger ahead (symbol sign) CW20-7a Flagger ahead (text sign) CW20-8 ... Advance Right Turn Arrow (45 Degree Angle) M5-3PL Advance Left Turn Arrow (Circular Intersection)
Diagram of turning vehicle. On wheeled vehicles with the common type of front wheel steering (i.e. one, two or even four wheels at the front capable of steering), the vehicle's turning diameter measures the minimum space needed to turn the vehicle around while the steering is set to its maximum displacement from the central 'straight ahead' position - i.e. either extreme left or right.
One complete turn (360°) is equal to 2 π radians, so 180° is equal to π radians, or equivalently, the degree is a mathematical constant: 1° = π ⁄ 180. One turn (corresponding to a cycle or revolution) is equal to 360°. With the invention of the metric system, based on powers of ten, there was an attempt to replace degrees by decimal ...
A standard rate turn is defined as a 3° per second turn, which completes a 360° turn in 2 minutes. This is known as a 2-minute turn, or rate one (180°/min). Fast airplanes, or aircraft on certain precision approaches, use a half standard rate ('rate half' in some countries), but the definition of standard rate does not change.
The turn (symbol tr or pla) is a unit of plane angle measurement that is the measure of a complete angle—the angle subtended by a complete circle at its center. One turn is equal to 2π radians, 360 degrees or 400 gradians. As an angular unit, one turn also corresponds to one cycle (symbol cyc or c) [1] or to one revolution (symbol rev or r). [2]
Hairpin turn in Oregon, US A hairpin, after which the feature is named. A hairpin turn (also hairpin bend or hairpin corner) is a bend in a road with a very acute inner angle, making it necessary for an oncoming vehicle to turn about 180° to continue on the road.