Safety on the New M4

Your safety is our number one priority

There are more than 150 people dedicated to getting people safely to their friends and family when using the New M4.

The following people and resources will join forces, working around the clock in the lead up to opening of the New M4 and post opening to ensure motorists’ safety:

  • Work crews, traffic controllers and operations staff
  • Incident response crews including motorcycles, highway patrol, and tow trucks - ready to ensure incidents are cleared as quickly and safely as possible
  • Motorway Control Centre resources who are responsible for controlling the variable message signs, providing updates to motorists of changed traffic conditions, monitoring pinch points, and deploying incident response vehicles when necessary.

With the opening of the New M4, there's going to be a period of adjustment. Get prepared for your journey here.


When driving into the New M4

  • When driving into a tunnel, always turn your headlights and radio on as emergency broadcasts cut into normal stations
  • Take off your sunglasses (if they’re not prescription glasses)
  • Wind up your windows and switch your air-conditioning to recycle
  • Avoid changing lanes
  • Maintain a safe distance between your vehicle and the vehicle in front of you


    New M4 Safety FAQs

    The New M4 Tunnels have a variable speed limit of up to 80km/h, which is consistent with other road tunnels across Sydney. All ramps will have a speed limit of 60km/h, except for the ramps at the Concord Interchange which are 35km/h. 

    The New M4 has a variable speed limit of up to 80km/h, which is consistent with other road tunnels across Sydney.

    Our first priority is the safety of motorists, so speed limits may be reduced as people adjust to the new tunnels and to ensure smooth traffic flow. Variable speed limits also help to manage heavy traffic if there is an incident or bad weather.

    Yes. The New M4 will have fixed speed cameras. 

    Fixed digital speed cameras detect the speed of vehicles by using approved electronic sensors that are embedded in the road surface. If the speed of the vehicle exceeds the legal limit, then a digital picture is taken of the offending vehicle.

    Heavy vehicles such as trucks and buses will be subject to average speed enforcement which measures the average speed of heavy vehicles between two camera sites. If the vehicle’s average speed is higher than the speed limit for the length of road, the driver will receive a speeding infringement from NSW Police.

    Six breakdown bays are located throughout the east and westbound tunnels, three in each direction. They are marked in yellow.

    In the event of a breakdown, motorists should:

    • Turn on hazard and parking lights immediately
    • Find a safe spot to pull over. It’s safest to stop in an emergency lane or breakdown bay (there are six breakdown bays throughout the tunnels)
    • Stay in your vehicle with your seatbelt on
    • Stay calm and wait for assistance. Help will be on its way.

    Mobile reception will be available in the New M4. For your safety do not use your mobile phone at all while driving. Bluetooth beacon technology is available in the tunnels.

    Your mobile phone is only permitted while driving or riding if:

    • It is in a cradle fixed to the vehicle and doesn’t obscure your view of the road
    • It can be operated without touching any part of the phone, such as via Bluetooth and voice activation

    The New M4 is fitted with large wayfinding panels along the walls of the tunnels including location and exit markers which provide visual aids to familiarise motorists and assist with driver navigation.

    There are also green navigational signs to assist motorists as well. Find out more.

    Plan Your Journey inside the New M4

    Stay safe, be prepared and plan your journey inside the New M4 by watching these detailed animations of every entry and exit.

    We're watching out for you, 24/7

    The New M4 Motorway is monitored by CCTV around the clock, including the New M4.

    If you breakdown or have an accident, remain in your vehicle and wait for help to arrive. Do not get out of you car under any circumstances.

    To report an incident on the motorway, please call 131 700.