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LaneWarden

Inform drivers

LaneWarden Messenger

Portable changeable message sign that measures the traffic it warns
See it in the demoAsk about Messenger
In every kitCorridor backbone

Overview

A full-matrix portable message sign with a Doppler radar facing oncoming traffic. It posts queue, delay and hazard messages from an approved library, and falls back to a safe message on its own if its data stops.

Messenger is where the system talks to drivers. It carries the queue warnings, travel times and hazard messages that the rules in LaneWarden Command select, always from a message library the agency has approved.

Every Messenger is also a detection point. A Doppler radar on the trailer measures the speed of approaching vehicles, so each sign adds data where it stands instead of depending only on sensors elsewhere.

What it does

Messenger at work

1

Queue warning

Posts SLOW TRAFFIC AHEAD or STOPPED TRAFFIC AHEAD when detection downstream shows a queue, on the sign at least half a mile before the estimated tail.

2

Travel time and delay

Between warnings, alternates WORK ZONE AHEAD with the current travel time to the end of the project.

3

Hazard messages

Carries approved weather and incident messages, such as ICE POSSIBLE / REDUCE SPEED when the weather station sees freezing conditions with precipitation.

4

Local fail-safe

If the data a sign depends on stops, the node itself switches to WORK ZONE / SLOW DOWN. It does not wait for the cloud to notice.

Watch the warning move upstream ahead of a hidden queue, with the same rules the system runs.

Open in the demo

Specifications

Design values

ItemValue
DisplayFull-matrix LED, three lines of eight 18-inch characters
VisibilityVisible from ½ mile, legible from at least 650 ft
Message rulesUp to two phases, each shown at least 2 s, 8 s or less per cycleMUTCD §6L.05
Sign controlNTCIP 1203
RadarDoppler, facing approaching traffic, range about 2,000 ft
DataSpeeds in 60-second bins; events sent immediately
CommunicationsLTE/5G on two carriers with automatic failover

Power

Load
7.8 W
Storage
2.3 kWh
Solar
200 W

LaneWarden add-on only. The sign keeps its own solar system, and the add-on has a separate battery so it can never drain the sign.

In the WZDx feed

dynamic-message-sign

The current message as an NTCIP MULTI string, every 60 seconds.

Runs LaneWarden Edge

  • GPS position reported within 10 ft
  • Health, power and status every 60 seconds
  • Local rules and fail-safe behavior that work without the network
  • 72 hours of store-and-forward if the link drops
  • Signed over-the-air software updates

Works with

Related devices

Detect traffic

LaneWarden Pulse

Queue-detection radar trailer

A light solar mast trailer with a side-fire radar that measures speed, volume and occupancy in both directions. Pulses fill the gaps between the other nodes so a queue tail is always near a detection point.

Corridor backbone

Detect traffic

LaneWarden Lookout

Camera, radar and edge-AI trailer

A solar mast trailer with a 40× pan-tilt-zoom camera, two AI cameras and a side-fire radar. It gives operators eyes on the corridor and measures traffic in both directions, with travel-time, weather and satellite options.

Corridor backbone

Inform drivers

LaneWarden Pace

Variable speed limit sign with speed feedback

A trailer-mounted regulatory speed limit sign with a YOUR SPEED display. It shows the work zone limit when workers are present and the normal limit when they are not, inside the envelope the agency approved.

In every kit

Guides

Go deeper

All guides

Next step

Planning a work zone that needs to be smart?

Tell us about the corridor, the schedule and the specification. We will walk you through how the system would be laid out and run.

Talk to usRun the live demo