Vietnam has no general right-turn-on-red rule. A red light means stop for every direction unless a specific authorisation exists at that junction. Riders used to the American system must switch the reflex off: turning right across a red without one of the permitted cases is punished as disobeying a traffic signal — 4,000,000–6,000,000 VND for motorbikes under Article 7(7) of Decree 168/2024/NĐ-CP.

The cases where right on red is allowed

Three situations cover almost everything a rider will meet in Hanoi:

  • A traffic officer signals you through. Police direction overrides signals under the precedence rules in Article 11 of Law 36/2024/QH15.
  • An auxiliary sign next to the lights shows a right arrow with an exemption, permitting the turn even on red.
  • A dedicated right-turn lane or slip lane with its own signal or an island separating it from the junction. Where the lane is physically separated and signed for right turns, riders follow that lane’s own signalling.

In every permitted case, the turning rider must signal and give way to pedestrians and cross traffic before completing the turn.

What the law does not allow

There is no rolling stop, no quiet-hours exception, and no exception for empty streets at dawn. A red light with no auxiliary permission is a stop line, full stop. Blocking a dedicated right-turn lane while waiting at the main signal is its own violation, and counterflow around a red — swinging into the opposing lane to dodge the wait — is one of the most heavily fined moves on the list.

Why this matters for visitors

The fine is the visible cost; the geometry is the real one. Hanoi junctions mix dense motorbike flow with turning buses and pedestrians stepping off curbs. Red-light discipline at Vietnamese intersections is not a formality — the 4–6 million VND band exists because signal violations are a leading accident cause. Tourists riding in the Old Quarter should treat every red as a full stop unless a sign or officer explicitly permits the turn.

Information, not legal advice. Verified against Law 36/2024/QH15 and Decree 168/2024/NĐ-CP on 2026-09-22.