A 3 lane curve can be dangerous if drivers are not paying close attention to the road. Post a sign to regrab their attention.
Standard: 01 If a Double Reverse Curve (or Turn) sign is used, the direction of the double reverse curve (or turn) shall be appropriately illustrated. Except as provided in Paragraph 3, the number of lanes illustrated on the sign shall be the same as the number of through lanes available to road users.
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