Driving in Cambodia

Overview

Driving in Cambodia is an adventure that rewards preparation and patience. The country has undergone significant development, yet road infrastructure remains limited outside major corridors. Phnom Penh presents chaotic urban driving where motorbikes dominate and traffic rules are often suggestions rather than law. Siem Reap, gateway to the temples of Angkor Wat, offers a slightly calmer base but still requires vigilance. Beyond these hubs, dust roads, monsoon flooding, and sparse services define the driving experience.

Cambodia drives on the right side of the road. Speed limits exist on paper but are rarely enforced. The real challenge lies in adapting to a traffic culture where motorbikes outnumber cars, livestock wanders onto highways, and road conditions can change dramatically with the seasons.

License & Documents

• International Driving Permit (IDP): Required for foreign visitors. Must be obtained in your home country before arrival.
• Domestic license: Carry your original license alongside the IDP at all times.
• Passport: Keep a copy in the vehicle; police checkpoints may request identification.
• Vehicle registration: Rental cars should have documents in the glove compartment.
• Validity: IDP is typically valid for the duration of your stay, but check your specific permit’s terms.

Rules of the Road

• Drive on the right, overtake on the left.
• Traffic lights: Often ignored, especially by motorbikes. Proceed with caution even on green.
• Right of way: Unpredictable. Assume others will not yield. Defensive driving is essential.
• Seat belts: Required for front passengers; rear seat belts may be absent in older vehicles.
• Mobile phones: Technically prohibited while driving, though widely used.
• Alcohol: Legal limit is 0.05% BAC, but enforcement is inconsistent. Avoid drinking and driving.
• Horn usage: Common and expected. A short honk signals presence, especially when overtaking or at blind corners.

Road Conditions & Types

Phnom Penh

The capital’s traffic is dominated by motorbikes, tuk-tuks, and an increasing number of cars. Lanes are fluid; vehicles merge and change direction without signaling. Rush hour brings near-gridlock. Expect motorcycles on sidewalks, vehicles driving against traffic, and sudden stops. Parking is informal and often on sidewalks.

National Highways

Highway 1 (Phnom Penh to Vietnam), Highway 5 (to Battambang), and Highway 6 (to Siem Reap) are the main paved routes. Quality varies. Some sections are smooth dual carriageways; others are single-lane with potholes, construction zones, and heavy truck traffic. Overtaking occurs on both sides; watch for oncoming vehicles.

Rural and Dust Roads

Beyond the main highways, many roads are unpaved. Dust clouds reduce visibility; reduce speed and use headlights. During the dry season, dust coats everything. In the wet season (May to October), these roads can become impassable. Flash flooding occurs quickly; never attempt to cross flooded sections.

Siem Reap and Angkor

Roads around Siem Reap are generally better maintained. The temple complex has paved access roads. Traffic is lighter than Phnom Penh but still includes many motorbikes and tour buses.

Fuel & Charging

• Fuel types: Unleaded gasoline (92, 95 octane) and diesel widely available in towns.
• Prices: Moderately priced by regional standards. Fill up in Phnom Penh or Siem Reap before long journeys.
• Rural availability: Fuel stations become sparse on remote routes. Plan ahead; carry extra fuel for off-road or long rural trips.
• Quality: Stick to branded stations (Total, Caltex, PTT) when possible. Contaminated fuel can occur at remote stations.
• EV charging: Virtually nonexistent outside Phnom Penh. Electric vehicles are not practical for tourism.

Parking

• Cities: Informal parking is common. Attendants may appear and request a small fee (500-2000 riel); this is normal.
• Temples: Angkor Archaeological Park has designated parking areas. Secure your belongings; theft can occur.
• Street parking: No formal system. Park where others park; avoid blocking driveways or major thoroughfares.
• Security: Do not leave valuables visible. Break-ins, though not rampant, do occur.

Tolls & Fees

• Highway tolls: Some newer expressway sections have tolls. Fees are modest. Cash (riel or USD) accepted.
• Bridge tolls: Occasional toll booths on major bridges. Small amounts.
• Police fines: Informal “fines” at checkpoints can occur. Remain calm and polite. Legitimate fines should be receipted.

Car Rental Tips

• Major companies: International brands have limited presence. Local operators and hotels often arrange rentals.
• 4WD: Recommended for rural travel, dust roads, and monsoon season. Standard sedans struggle on poor surfaces.
• Insurance: Verify coverage. See our car rental insurance guide — many policies exclude damage from unsealed roads or flooding.
• Driver-guide: Consider hiring a local driver. They navigate traffic, checkpoints, and road conditions more effectively.
• Documentation: Ensure the rental includes registration papers. Police may request them at checkpoints.
• Minimum age: Typically 21-25. Young driver fees may apply.

Emergency Information

Service	Number
Police	117
Ambulance / Fire	119
Tourist Police	024 969 601

• 117 for police; 119 for medical and fire emergencies.
• Response times vary. In Phnom Penh, help may arrive within 15-30 minutes. Rural areas can take much longer.
• Travel insurance: Essential. Medical facilities outside Phnom Penh are limited. Evacuation to Bangkok or Singapore may be necessary for serious incidents.
• Roadside assistance: Not standardized. Rental companies may offer limited support. Have contact numbers saved.

Cultural Tips

• Patience: Traffic moves at its own pace. Aggression or frustration achieves nothing.
• Motorbikes: They will cut in front of you. Expect it. Maintain safe following distance.
• Checkpoints: Police stops are common. Have documents ready. Stay polite.
• Monsoon: From May to October, heavy rain causes flooding and mud. Avoid non-essential travel on rural roads during peak monsoon.
• Dust: In dry season, dust is pervasive. Keep windows closed on dirt roads. Clean air filters if driving extensively.

Useful Resources

• Cambodia Ministry of Public Works and Transport
• Tourism Cambodia
• CDC Travel Health - Cambodia

Related Destinations

• Vietnam
• Thailand
• Malaysia