The Ogier Electronics SVR-500 Stopped Vehicle Detection (SVD) radar scans the full 360-degrees to rapidly detect stopped vehicles on any carriageway within typically 8 seconds. Detection zones are configured easily to set up different carriageways, slip roads, emergency areas and hard shoulders, as well as defining areas of no interest. A single SVR-500 radar scans more roadway than 4 or more flat plate radars. In addition to reporting location data for the stopped vehicle, the SVR-500 can take automatic control of a nearby CCTV camera, pointing it at the incident for visual assessment in the control centre. This reduces operator workload for the fastest response.
- Total coverage 500 metres (250m in all directions)
- Rapid detection, typically 8 seconds
- All weather performance (rain, fog, mist, snow)
- Works in any ambient light level
- Scans all carriageways (10+ lanes)
- Detects all types of car, van, truck & motorcycle
- Identifies the lane in which the vehicle has stopped
- Can be installed at height to see over tall vehicles
- Low false alarm rate proven in real world conditions
- Minimal blind spot underneath sensor, even when mounted high
- Automatic control of PTZ camera
- No external signal processing required
- No annual licensing fees or hidden costs
- Typically takes only 15 minutes to install
- All configuration and alignment is performed remotely
Ogier Electronics’s radar technology operates in the license-exempt 24GHz frequency band. This results in excellent detection characteristics and good immunity to interference from air traffic control, marine radar systems, microwave ovens, wireless links and WiFi, all of which typically operate at other frequencies.
SVR-500 case studies
SVR-500 in action
The SVR-500 Stopped Vehicle Detection (SVD) radar is the proven solution to detect stopped and stranded vehicles. On operational European motorways we have demonstrated a detection time of typically only 8 seconds with detection probability that exceeds 90% in all weathers; rain, snow and fog. Plus a low false alarm rate of typically 1 false alarm in 2 days per radar (or better if operation is suspended during traffic jams). The SVR-500 will report the correct lane of the stopped vehicle with high accuracy (typically >90% at the maximum range of 250 metres, improving as range decreases). These figures are from multiple radar installations under real conditions with live traffic, observed over many months.
The 360-degree coverage from a single SVR-500 radar exceeds that of four or more fixed-beam (flat plate) radars, plus there is no need to carefully align the radar, resulting in very fast installation of only around 15 minutes. All configuration and alignment is performed remotely using the live radar data to confirm the map overlay matches the ground truth.
The special antenna arrangement used on the SVR-500 radar allows detections almost directly underneath, even when mounted high. The blind area underneath can be as small as 2m radius depending on mounting height and vehicle type. This improves radar coverage, removing the need to infer the presence of vehicles, thus eliminating a major source for missed detections and false alarms. Additionally, the beam shape is designed to cope with normal height variations of roads, eliminating the need for precise mechanical tilt adjustments during installation.
All of the signal processing is performed within the radar unit itself, removing the need for high bandwidth communication. Vehicles are measured independently on each scan, without the need to maintain accurate scan-to-scan tracking. This eliminates errors that would otherwise occur when a vehicle is temporarily obscured behind another vehicle which can impact the detection probability and false alarm rate.
The SVR-500 radar can determine when a traffic jam has formed, and uses this information to prevent repeated nuisance alarms from being raised. In the event of a breakdown during the traffic jam, the stranded vehicle will be detected correctly when the congestion has cleared and traffic starts to flow again.
For highway safety applications beyond stopped vehicle detection we recommend the use of our SVR-500IS radar that has many additional hazard detection capabilities compared to the regular SVR-500.