The following table compares these alternative technologies, both of which meet the BSIS Technical Guidelines.
We would further recommend that both these technologies should be used with Vulnerable Road User Detection provided by our latest generation DVR’s.
| RADAR | CAMERAS (VRUD) |
| Solid LED warn of any Road Users entering the Blind Spot
Audible tonal alarm (2 pips) and flashing LEDS if an imminent risk of collision detected |
Audible tonal and spoken warning alarm when a Vulnerable Road User (VRU) enters the Blind Spot. Increasing intensity the closer the VRU is to the vehicle.
Visual warning Icon is displayed when a VRU is in a high risk position. |
| Detects all Road Users – not just VRU’s | Only detects VRU’s |
| Does not detect standing VRUs | Detects standing Vulnerable Road Users |
| Detects undertaking VRUs between 2 M and 10M back from the sensor
(faster speed differential = more reliable and earlier detection) |
Detects VRU’s over the full length of a vehicle and trailer at any speed differential |
| Warns when approaching an overtake of other Road Users | Does not detect vehicle approaching VRU’s (but MOIS camera does) |
| Warns of Road Users crossing in front of vehicle when stationary | Does not detect VRU’s in front of Camera (but MOIS camera does) |
| Does not reliably detect Vulnerable Road Users filtering through traffic | Detects Vulnerable Road Users filtering through traffic |
| Performance unaffected by light or weather conditions | Performance reduced under bad light and weather conditions |
| Occasional false alarms due to misinterpretation of radar signature/ | Occasional false alarms due to misrecognition of objects – occurs more often at night |
| Meets FORS Side Swipe Requirements | Can meet FORS Side Swipe Requirements |
| Easy Installation | Easy Installation |