eSAS®: Electronic Speed Awareness Sign

The eSAS® is another safety innovation from ARROWES, designed to improve roadwork zone compliance by combining real-time driver interaction with intelligent data capture.

Built from the same safety-first thinking behind the eSTOP, the eSAS transforms traditional vehicle-activated signs (VAS / SAM) into a portable, easy-to-deploy and more functional solution. It not only provides live behavioural feedback to approaching motorists but also captures valuable traffic data to support safer site planning.

Positioned on the approach to a worksite, the eSAS responds to driver speed in real time, encouraging motorists to slow down and comply with reduced speed limits well before reaching the work zone.

An independent Downer trial conducted across Australia in 2019 demonstrated a 24% improvement in speed compliance when using eSAS — outperforming traditional speed reduction measures.

With eSAS, you can:

  • Improve speed awareness for approaching motorists

  • Select from multiple behavioural display options

  • Record traffic data including speed, GPS timestamp and vehicle count

  • Better understand driver behaviour across different traffic conditions and traffic management setups

When deployed as part of a connected environment, eSAS can also contribute data into broader safety platforms such as ASIST, enabling deeper insights and more informed decision-making.

eSAS Features

  • Lightweight and compact design for easy transportation and rapid deployment

  • Total system weight of 20kg, split across three manageable components

  • Fast and simple setup on tri-pod legs

  • Self-contained unit including battery and charger

  • Approx. 20 hours battery life at 80% operating time (bypassing vehicles)

  • Wind load tested up to 110 km/h (with 3 sandbags per leg)

Driver Interaction & Visibility

  • Embedded radar detects vehicles up to 150m

  • Speed-specific display that actively interacts with distracted drivers

  • Smiley / sad face behavioural feedback

  • Pre-programmed display messages

  • Four simple selector switches for quick configuration (speed setting, display modes, messaging)

Embedded Radar & Data Intelligence

  • Integrated radar solution for speed detection and display control

  • Automatic vehicle count logging

  • Individual vehicle speed recording

  • GPS location capture

  • Timestamped data for compliance reporting

  • Embedded SD card with easy .csv file download

  • 16GB storage capacity (approx. 5,000 days of data)

eSASa-Compact

A lightweight, portable speed awareness sign designed for quick deployment in temporary traffic environments. Provides real-time speed feedback and behavioural messaging through embedded radar and onboard data logging. Ideal for worksites requiring a simple, self-contained speed awareness solution.

eSASb-Max

A larger display version designed to increase visibility and driver engagement in higher-risk or higher-speed environments. Includes integrated wig wag lights, enabling visual warning reinforcement and seamless interaction with the broader eSERIES ecosystem.

eSAS-HAWK

A connected configuration enabled via the HAWK network, allowing remote visibility of speed data, deployment status, and performance insights. Designed for integrated safety deployments and projects requiring centralised monitoring.

Bags
Protective carry case and bags for the display head, tripod leg, and battery.
Provides an easy-to-carry and secure storage for all eSAS® solution components.

Camera
Front and rear (eSAS® Double) camera recording provides further protection for front-line workers and evidence in insurance cases.

Camera footage includes GPS location, time-stamp, as well as indicates traffic light status. Recording on embedded SD card.

Alert Beacon
Each eSAS® can be enhanced with Acoustic and Visual Alarm Beacons to be activated in case of dramatic speeding compliance breaches, or on a permanent base if selected.

Plant Mounted
Each eSAS® display head can be mounted to mobile plants and utes, with or without a direct power supply to the vehicle. ARROWES offers customised mounting options based on your vehicle and plant.

Frequently Asked Questions

What comes with the eSAS set?

Each set includes 1 unit of eSAS, 1 Battery, 1 Battery Holder and 1 tripod leg, as well as an SD card and a battery charger. Additional components as well as additional spare parts can be purchased separately.

Do you supply Australia and New Zealand wide?

We do supply Australia wide. Orders for New Zealand should be placed via Fulton Hogan New Zealand as exclusive distribution partner.

Do I need additional software to access and analyse the traffic data recorded?

The SD card contains all recorded data in CSV format, which can be easily opened and analysed by Microsoft Excel.

Can I change the displayed messages and warnings?

All current signs and texts are preset. Please contact us if you have special display requirements.

Testimonial

In our Nationwide Trial, the eSAS has improved motorists’ compliance at the approach by 24%

Downer Ben Hur Program

Interested in learning more about ARROWES product?

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