Temporary yellow markings at a roadworks narrowing
You are riding outside a built-up area on a two-lane road signed 70 km/h because of roadworks. Temporary yellow markings shift your lane to the left around a 30 m work zone; the original solid white line is still visible beneath the yellow. Oncoming traffic uses the same open lane alternately. A truck is approaching 150 m away at about 50 km/h. Your speed is 65 km/h. The road is dry, but there are loose chippings and a worker with a slow paddle 40 m before the works. There is no temporary traffic signal and no flagger controlling your direction. Your motorcycle is stable, the brakes are good, and you have a clear view of the truck. The yellow line runs across the white line at a shallow angle. You intend to continue at 65 km/h to clear the zone quickly.
1. Which markings must you follow, and may you cross the solid white line?
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The temporary yellow markings made for the works take precedence over the permanent white markings, so follow the yellow alignment. Crossing the solid white line is permitted only because the yellow line directs you across it; it is not a general licence to cross solid white. You must still obey the basic rule: do not enter the single open lane unless you can clear it without forcing the truck to brake. The yellow line guides you, but it does not give you priority over oncoming traffic.
2. The truck is 150 m away. Should you enter the narrow lane at 65 km/h?
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Closing speed is 65 + 50 = 115 km/h, about 32 m/s. At 150 m you have roughly 4.7 s before meeting the truck. The 30 m zone at 30 km/h takes about 3.6 s, plus time to enter and return, so 65 km/h leaves too little margin. The truck has the open lane; slow to about 30 km/h, stop before the zone if necessary, and let the truck pass. Then cross only when the far side is clear. Do not flash your headlight or assume a loaded truck can stop quickly.
3. How do the loose chippings and the worker affect your riding line?
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Loose chippings reduce grip, especially while leaning or braking. Keep the bike upright and reduce speed before the yellow diversion, not inside it. The worker with the paddle is a person at risk: obey the paddle and give space. If the paddle signals stop, stop before the works, not inside the narrow lane. Avoid hard braking on the chippings; use gentle engine braking and smooth steering. After the zone, check the mirror before returning to your lane.