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LaneWarden

Devices

Eight devices, each a sensor and a node

Signs that measure the traffic they warn, cameras that analyze video on the trailer, radars that fill the gaps, and alarms that protect the crew. All solar powered, all on two cellular carriers, all reporting every 60 seconds.

Device line

Show devices that

Showing every device

Common to every node

One design basis

Every node meets the same power, position, data and trailer requirements, so the system behaves the same way wherever a device stands.
ItemDesign basis
Power autonomyContinuous operation on 4 hours of sun, 10 days without sun
RestartAutomatic restart after a power interruption
PositionGPS on every node, reported within 10 ft
Data60-second bins, events sent immediately, 72 hours of store-and-forward
Design low temperature−29 °C (−20 °F)
TrailersUnit number, anchoring for 80-mph wind, outriggers, lights, highway orange

Data

How each device appears in the WZDx feed

Command publishes a WZDx 4.2 device feed every 60 seconds. Every LaneWarden node maps to a WZDx device type.
DeviceWZDx device typeWhat it publishes
Messengerdynamic-message-signThe current message as an NTCIP MULTI string, every 60 seconds
Pacehybrid-signThe displayed limit as a speed-limit hybrid sign
Lookouttraffic-sensorSpeed, volume and occupancy per lane (and a camera image where the agency wants one)
Sentineltraffic-sensorApproach speeds. Intrusion events stay in Command; WZDx has no intrusion type
Pulsetraffic-sensorSpeed, volume and occupancy, with per-lane data
Entry Alertflashing-beaconBeacon state with the vehicle-entering function
Markerlocation-markerWork zone start and end locations
Arrow Linkarrow-boardPattern and transport position

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.