What is a VMS message board and when should you hire one?
A VMS message board gives drivers and pedestrians clear, changeable information before they reach roadworks, a traffic delay, an event entrance or another temporary change. Unlike a fixed sign, its display can be updated as site conditions and communication needs change.
The flexibility is useful, but effective VMS use depends on more than choosing a message and switching the board on. The location, viewing distance, display format, approvals and relationship with the wider traffic-management setup all affect whether people can read and act on the information safely.
This guide explains what a VMS message board is, when hiring one makes sense and what to organise before it arrives.
What is a VMS message board?
VMS stands for variable message sign. The terms VMS message board, variable message board and electronic message sign are often used for the same type of equipment.
A portable VMS usually consists of an LED display mounted on a towable trailer. The board can show changeable text, symbols and, where the equipment permits, colour graphics. Many portable models use solar panels and batteries so they can operate without a permanent mains-power connection.
Call 2 Hire's VMS boards are portable, solar-powered and capable of displaying full-colour messages. They are designed for temporary communication across roadworks, civil construction sites, events and suitable promotional applications.
How does a portable VMS board work?
The message is entered through the board's control system. Depending on the model and setup, changes may be programmed at the unit or managed remotely. LEDs create a bright display that can remain visible through changing daylight and weather conditions.
A solar panel charges the onboard battery during the day. Battery capacity, solar exposure, display brightness and weather conditions influence operating time, so the power system should be checked throughout the hire.
The trailer allows the sign to be transported and positioned temporarily. Once on site, it must be stabilised, secured and oriented for the intended audience without creating a roadside or pedestrian hazard.
When should you hire a VMS message board?
Planned roadworks and lane changes
A VMS can provide advance notice of upcoming roadworks, changed traffic conditions, lane closures or reduced access. Giving road users information before they reach the work area allows more time to slow down, change lanes or choose another route.
The board should form part of the approved traffic-management arrangements. It does not replace regulatory signs, barriers, traffic controllers or other devices required by the plan.
Detours and temporary road closures
When a normal route is unavailable, a VMS can warn road users before they reach the closure. Messages may identify the affected road, timing and required action, such as following a marked detour.
A board is most helpful when it is positioned early enough for a safe decision. Placing it at the closure itself may leave drivers with no practical opportunity to turn or change route.
Expected delays and queued traffic
Construction work, incidents, deliveries and temporary traffic control can create queues. A VMS can warn approaching road users about delays or stopped traffic, helping them prepare before reaching the back of the queue.
If traffic conditions change quickly, confirm how the displayed information will be monitored and updated. An inaccurate message can create confusion and reduce trust in later instructions.
Events, parking and site access
Sporting events, community days, open days and large private functions often need temporary directions. A VMS can identify event access points, parking areas, overflow routes, entry restrictions or changes at different stages of the event.
Construction and industrial sites may also use boards to direct authorised vehicles to the correct gate, advise of changed delivery access or communicate temporary site instructions. Positioning still needs to account for public roads, neighbouring properties and local approvals.
Emergency and unplanned changes
Portable VMS boards can support communication during urgent closures, damaged infrastructure, severe weather and other unexpected disruptions. The message should be controlled by the person or authority managing the incident so it remains accurate and consistent with other instructions.
Promotions on suitable private sites
Full-colour VMS boards can attract attention for sales events, open days and short-term promotions. Before hiring one for advertising, confirm that the proposed location and display comply with council, landowner and road-authority requirements.
Do not assume that a board can be placed beside a public road simply because it is portable. Brightness, animation, placement and message content can affect driver distraction and may be restricted.
When is a VMS board not enough?
A VMS communicates information. It does not physically control traffic and should not be treated as a substitute for every other traffic-management measure.
You may also need:
- An approved traffic-management plan or traffic guidance scheme
- Regulatory and warning signs
- Barriers, cones and delineation devices
- Accredited traffic controllers
- Portable traffic signals for controlled alternating traffic flow
- Road-authority, council, event or landowner approval
For works on or affecting NSW roads, signage must comply with the applicable traffic-control requirements. The current Transport for NSW standards portal identifies Traffic Control at Work Sites as a current technical standard. Have a competent traffic-management professional confirm what applies to the site.
If the task requires vehicles to be stopped and released in alternating directions, explore mobile traffic light hire rather than relying on a message board alone.
VMS boards compared with other traffic devices
| Device | Main purpose | Typical use |
|---|---|---|
| VMS message board | Displays changeable information, warnings or directions | Advance notice, delays, detours, events and temporary access changes |
| Static road sign | Displays a fixed warning, direction or regulatory instruction | Consistent conditions and approved traffic-control layouts |
| Arrow board | Directs traffic around a lane obstruction or work area | Lane closures, merging and mobile works |
| Mobile traffic lights | Controls opposing traffic movements | Single-lane operation through roadworks or temporary restrictions |
These devices can work together. The correct combination depends on the road environment, traffic speed, work activity, sight distance and approved plan.
How to write an effective VMS message
Drivers have limited time to read a roadside display. The message should communicate the most important information in as few words as practical.
A useful message usually answers:
- What is happening? For example, roadworks, a closure or queued traffic.
- Where or when? Identify the affected location, date or time where necessary.
- What should the reader do? Slow down, merge, use another entry or follow a detour.
Keep the wording direct and use familiar terms. Avoid unnecessary phone numbers, long website addresses, promotional language or multiple unrelated ideas. If the board alternates between screens, each screen should make sense and the complete message must be readable within the available approach time.
Messages used for public-road traffic management may require approval. Confirm the exact wording instead of improvising after setup.
Where should a VMS board be positioned?
The position should allow enough time for the intended audience to see, read and respond safely. The exact distance depends on road speed, visibility, message length, site layout and the traffic-management plan.
Before placement, check:
- Available sight distance and approaching traffic speed
- Roadside clearances and protection from vehicle impact
- Whether the board blocks signs, driveways, footpaths or sight lines
- Ground stability, trailer orientation and stabiliser setup
- Solar exposure and battery condition
- Access for safe delivery, setup and collection
- Security against tampering, theft or unauthorised message changes
- Permissions from the road authority, council or landowner
A board that is difficult to read, poorly secured or placed too close to the decision point may create more confusion than it solves.
What to consider before hiring a VMS board
The purpose of the message
Define the result first. Are you warning about works, advising of a closure, directing event traffic or promoting an open day? This determines the display, placement and approval requirements.
The audience and viewing environment
Consider whether the message is for motorists, truck drivers, pedestrians or event visitors. Road speed, daylight, night-time use, viewing angle and expected traffic volume influence board selection and placement.
The hire period
Allow time for delivery, setup, testing and collection. For planned works or events, an advance-notice board may need to be installed before the activity begins and changed when conditions move to the next stage.
Message updates
Decide who is authorised to change the display and how updates will be requested. Keep a record of approved messages where the board forms part of a traffic-management plan.
Power and monitoring
Solar power reduces the need for a fixed supply, but the battery and charging system still require monitoring. Confirm the expected operating period, panel exposure and arrangements for extended poor weather.
Delivery and towing
Check access, trailer dimensions, towing arrangements and the surface where the board will stand. Confirm whether delivery and collection are included or whether the hirer is responsible for transport.
Benefits of hiring instead of purchasing
Hiring can make sense when the requirement is temporary, project-based or changes between sites. It avoids storing a trailer-mounted board between jobs and allows the equipment to be selected around the current project.
VMS hire may suit:
- Short and medium-term roadworks
- One-off events and open days
- Temporary traffic changes
- Seasonal promotions
- Emergency replacement signage
- Projects that need additional boards only during particular stages
Explore Call 2 Hire's VMS message board hire in Sydney or browse the wider roadworks and construction equipment range.
Frequently asked questions
What does VMS stand for?
VMS stands for variable message sign. It is an electronic sign that displays messages which can be changed as conditions or communication needs change.
Are VMS boards solar-powered?
Many portable models use solar panels and onboard batteries. Available operating time depends on the equipment, battery condition, display settings, solar exposure and weather.
Can a VMS board be used for advertising?
It may be suitable for sales events, open days and promotions on an approved site. Check council, road-authority and landowner requirements before positioning an advertising display where it may be visible from a public road.
Can a VMS replace traffic controllers?
No. A VMS provides information but does not perform the same function as a traffic controller, regulatory sign or portable traffic signal. Follow the approved traffic-management arrangements for the site.
How long should a VMS board be hired?
The hire should cover delivery, advance notification where required, the full activity period and collection. Include extra time where dates may shift due to weather, approvals or construction delays.
Can the message be changed during the hire?
VMS messages are designed to be changeable, but updates should be authorised and accurate. For roadwork use, follow the approved message and traffic-management process.
Use the board as part of a clear communication plan
A VMS message board is most effective when it gives road users or visitors timely information they can understand and act on. Hire one when conditions are temporary, the message needs to change or advance notice will improve access and traffic flow.
To compare suitable boards, learn more about Call 2 Hire's VMS message board hire. For availability, delivery and project-specific requirements, contact the Call 2 Hire team.
