Complete Guide to Expressway Rules

There are two types of expressways: "National Expressways" and "Motorways (Automobile Dedicated Roads)". Rules like speed limits differ.
We've summarized the confusing points for the written exam.

1. Types of Expressways & Speeds

This is the most important point for the exam!
Rules differ significantly "when there are no signs".

Item	National Expressway (Main Lane)	Motorway (Dedicated Road)
Max Speed (General)	100km/h *Except some vehicle types	60km/h (Same as general roads!)
Min Speed	50km/h	None (No regulation)

⚠️ Watch out for Motorways!
Even on a Motorway (Automobile Dedicated Road), if a sign says "80", you can drive at that speed.
However, if there are no signs, the limit is "60km/h", just like general roads!
(e.g., Metropolitan Expressway, etc.)

Max Speed Details on National Expressways
🚗 Vehicles allowed 100km/h

Large Passenger (Bus), Ordinary Passenger, Ordinary Cargo
Large Motorcycle, Ordinary Motorcycle

🚚 Vehicles limited to 80km/h

Large Cargo (Truck), Large Special
Trailer (Towing vehicle), Three-wheeled vehicle

2. Prohibited Vehicles

Prohibited vehicles differ by road type. The 50km/h rule is key.

🚫 Prohibited on BOTH (Common)

Mini-cars
Mopeds (50cc or less)
Small Motorcycles (125cc or less)

⚠️ Prohibited ONLY on "National Expressways"

Small Special Vehicles
(Farm tractors, etc.)
Vehicles towing a breakdown car with a rope, etc.

Reason: National Expressways have a "Minimum Speed of 50km/h," so vehicles structurally or conditionally unable to reach 50km/h cannot enter.

3. Driving Rules & Prohibitions

📏 Following Distance Guide

Dry Road: Distance equal to the speed number (100m at 100km/h).
Rain/Worn Tires: About Double that distance.

🛣️ Lane Usage

Keep Left: Generally, drive in the leftmost lane. (Do not stay in the passing lane continuously)
Towing Vehicles: Trailers towing over 750kg must use the leftmost lane.
Road Shoulder: Generally prohibited (Allowed only for stopping due to breakdown).

🚫 Absolute Prohibitions

U-Turn
Reversing (Backing up) *Never back up even if you miss your exit!
Crossing (Crossing lanes)

🏍️ Motorcycle Tandem Riding Ban
The following people cannot ride tandem (2-up) on expressways:
① Under 20 years old.
② Held license for less than 3 years.

4. Emergency & Breakdown Response

Stopping/Parking is generally prohibited on expressways, with these exceptions:

Temporary stop to prevent danger
Stopping on the shoulder due to breakdown
Parking at SA/PA (Service/Parking Areas)
To pay tolls

🆘 If You Break Down (Triangle)

You are obligated to inform following vehicles that you are stopped.

Daytime: Place an Emergency Warning Reflector (Triangle) behind the car.
Nighttime: Triangle + Turn on Hazard Lights or Tail lights.
Evacuation: Do not stay in the car; move to a safe place outside the guardrail!

🔧 Pre-Departure Check

Fuel: Check to avoid running out of gas.
Tires: Set pressure higher.
(Low pressure at high speeds risks "Standing Wave Phenomenon" leading to bursts)
Emergency Triangle: Ensure it is loaded.

Expressways are convenient, but ignorance of rules leads to major accidents.
Drive safely with correct knowledge!

Training for Success!