FusionSensor watches the corridor continuously and flags queues as they form, feeding real-time alerts to TMC, DMS, and contractor platforms before congestion cascades.
Some of the most dangerous moments on a highway happen at the back of a queue: traffic ahead has stopped, and approaching drivers cannot see it yet. Detecting where a queue starts and how fast it is growing gives traffic managers time to warn drivers while a slowdown is still just a slowdown.
FusionSensor pairs HD3D radar with AI vision to measure speeds, occupancy, and stopped vehicles across multiple lanes in real time, through rain, fog, and glare. When speeds collapse or a queue forms, that detection becomes an alert the moment it happens.
Alerts and data flow into the systems agencies already use: TMC operations platforms, dynamic message signs, and contractor platforms, so the warning reaches drivers upstream while there is still room to slow down.
Stopped and slowing traffic is detected as it happens, with speeds and occupancy measured continuously across lanes.
Alerts reach TMC operators and dynamic message signs upstream of the hazard, alongside incident detection from the same sensor.
The same detections can feed contractor platforms used to manage smart work zones and traffic control.
HD3D radar keeps measuring through rain, snow, fog, and low sun, exactly the conditions where queues get dangerous fastest.
Queue detection is identifying where traffic has slowed or stopped along a roadway, using sensors that measure vehicle speeds and occupancy in real time. The output is a live picture of where each queue starts, how long it is, and how fast it is growing.
Alerts flow through the systems agencies already operate: TMC dashboards, dynamic message signs upstream of the queue, and, where deployed, V2X messages to connected vehicles.
Approaching vehicles are often traveling at full highway speed when they meet stopped traffic, and the speed differential leaves little time to react. Advance warning lets drivers slow gradually instead of braking hard at the last second.
The same sensor delivers continuous counts, speeds, occupancy, and vehicle classification for traffic data collection, so queue detection, operations, and planning all run on one device.
Tell us where queues form and we will show you what real-time queue detection looks like on your roadway.