Asian Highway route marker
Thai road sign น.20 — Asian Highway route marker. Meaning: Identifies an Asian Highway route number; the displayed AH number is an example. Learner-manual coverage: this identity is shown in the current DLT car-driver learner manual. Inclusion does not mean it appears in every theory test.
Study guide
Use this reference with practice
Blue and white Asian Highway route marker showing AH1. Use this independent reference to recognise Asian Highway route marker. Compare its route, direction, service or facility layout with related information and guide signs.
Study guide
Related signs
Compare Asian Highway route marker with nearby info signs. Shape, colour, symbols, arrows and wording distinguish each identity.
Put sign knowledge into practice.
Use broader signs-and-signals practice to apply the visual distinctions reviewed in this independent reference.
