Thailand Traffic Law Report
Source Agency: Department of Land Transport (DLT)
Last Updated: February 12, 2026
Key Findings
- ●Theory test pass rate is 62% (2023, Department of Land Transport)
- ●Road fatalities: 17,497 deaths in 2023 — Down 5% from 2022
- ●4.2 million tests administered per year by Department of Land Transport
- ●Most challenging topic: Traffic Signs (28% fail rate)
Test Statistics
Speed Limits
Urban
50-80 km/h
Rural / National Roads
90 km/h
Motorway / Highway
120 km/h
Most Challenging Topics
Traffic Signs
28% fail rateThai and international signage recognition
Right-of-Way
25% fail ratePriority rules at intersections and U-turns
Speed Regulations
23% fail rateVariable speed limits by road type and zone
DUI Laws
20% fail rateStrict alcohol limits and checkpoint procedures
Motorcycle Rules
18% fail rateHelmet laws, lane usage, and passenger limits
Road Safety
Road Fatalities
17,497 deaths
Thai Road Safety Centre (ThaiRSC) (2023)
Trend
Down 5% from 2022
Penalties & Fines
Recent Law Changes
Stricter DUI enforcement with random breathalyzer checkpoints expanded
New point-based license system (12 points) fully implemented
Mandatory rear seatbelt enforcement with fines (Road Traffic Act No.13, effective September 2022)
Sources & Methodology
All statistics in this report are sourced from official government agencies and publicly available data. AutoviaTest is an independent educational platform and is not affiliated with any government testing agency.
Data last verified: 2026-02-12
Primary Sources:
- Department of Land Transport — Test statistics (2023)
- Thai Road Safety Centre (ThaiRSC) — Road safety data (2023)
- Department of Land Transport (DLT) — Official regulatory body
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