Dual Carriageways, Expressways and Tunnels 雙程分隔車路、快速公路及隧道

Lane Rules on Dual Carriageways 雙程分隔車路的行車線規則

A dual carriageway has a central reservation separating opposing traffic. You must not reverse, turn, cross the central reservation or drive against the traffic. If you miss your turning or take the wrong route, you must carry on to the next junction.

On a two-lane carriageway, use the left lane except when overtaking. The keep-left rule also applies on a three-lane carriageway: you may use the middle lane when there are slower vehicles in the left lane, but return to the left lane after passing them and do not stay in the middle lane unnecessarily.

The right lane is for overtaking only. Afterwards, move back to the middle lane and then into the left lane as soon as you can, without cutting in. At some junctions the right lane may serve right-turning traffic or an exit to specific destinations, so look for direction signs, destination road markings and lane arrows as you approach.

Roads with Faster Traffic and Speed Limits 車速較高的道路及車速限制

The speed limit on all roads is 50 km/h unless signed otherwise. On roads with faster traffic it may be 70, 80, 100 or 110 km/h. Speed limit signs mark where a limit changes and are repeated along the road, and a 50 km/h sign marks the end of a higher limit. You must not exceed the limit for the road or for your vehicle.

Higher speeds leave less time to assess traffic, so use your mirrors, look well ahead and follow the two-second rule, leaving at least a two-second gap behind the vehicle in front. Keep your speed down on wet roads and in fog or high winds.

When you are about to leave a road with faster traffic, you may be going faster than you feel: 70 km/h on an open wide road may seem like 50 km/h, so check your speedometer. A Reduce Speed Now plate means you should start slowing down so that you can pass the hazard ahead safely.

If your vehicle is stationary because of a breakdown or emergency on an expressway or a road with a speed limit above 50 km/h, you must turn on the hazard warning lights. Do not walk on the carriageway, and take particular care to keep children off the carriageway and hard shoulder.

Expressways and Trunk Roads 快速公路及主幹路

Trunk roads are busy roads linking areas and districts, and some are designated as expressways, such as Tolo Highway, Fanling Highway, parts of Tsing Sha Highway and parts of the Island Eastern Corridor. Strategic routes carry route numbers (black on a yellow shield), and their exits carry exit numbers (white on black).

Under the Road Traffic (Expressway) Regulations, keep to the left most lane unless you are heading for a right side exit or overtaking, and overtake only on the right. You must not U-turn or reverse. You must not use the hard shoulder, verge or central reservation except during traffic diversion, breakdown or emergency. You must not stop or park anywhere on an expressway except for breakdown or emergency; in that case turn on the hazard warning lights and, if possible, leave the carriageway and stop on the verge or hard shoulder.

Where three or more lanes are available, medium goods vehicles, heavy goods vehicles and buses must not use the right most lane unless heading for a right side exit. The same restriction applies if you ride a motor cycle or motor tricycle, or drive a private car or light goods vehicle, while holding a probationary driving licence for that class.

Cyclists and pedestrians are prohibited. Unless the Commissioner for Transport has given prior written permission, the following may not use an expressway: vehicles driven by learner drivers, public light buses, special purpose vehicles and vehicles with an engine under 125cc. For vehicles solely propelled by an electric motor, this covers private cars rated below 7 kilowatts and motor cycles or motor tricycles rated below 3 kilowatts. In high noise, particularly in wet weather, flashing your headlamps is usually a better warning than the horn.

Tunnel Areas and Control Areas 隧道區及管制區

A tunnel area generally includes the tunnel tubes and the roads leading to or from them. Users must follow the relevant ordinances, regulations and bylaws, and obey signals and directions from police officers or tunnel officers. Where there are two or more lanes, choose the appropriate lane before entering and keep to it. Do not cross double white lines, even if your lane is temporarily blocked.

In a tunnel you must not use main beam headlamps or the horn, make a U-turn, reverse or push a vehicle. You must not drive below 25 km/h in normal traffic or without enough fuel to get through. Do not stop except in an emergency (for example, to avoid an accident), on breakdown, or when signalled to by a police officer, tunnel officer, traffic sign or flashing red light signal. Do not get out except in an emergency or to fetch help, and do not change a tyre or wheel, refuel or repair your vehicle.

Buses, coaches, medium or heavy goods vehicles and vehicles towing another vehicle must use the left most lane only, except in the Central - Wan Chai Bypass Tunnel. Vehicles carrying Category 1, 2 or 5 goods under the Dangerous Goods (Application and Exemption) Regulations (Cap. 295A) need permission. If one tube is closed, the other may run two-way traffic: you must not overtake or use the right most lane, because it is then the oncoming lane. If you break down or have a traffic accident inside a tunnel, stop and do not move your vehicle.

Only vehicles with a valid tag may use autotoll lanes. In a control area, such as the Tsing Ma Control Area or Tsing Sha Control Area, you must follow the relevant ordinances, regulations and bylaws, as well as instructions from authorised personnel.