The Euro NCAP LSS LDW protocol is designed to evaluate the effectiveness of LDW systems, which alert the driver when the vehicle unintentionally leaves a lane but do not physically intervene. The protocol does this by driving the vehicle under test (VUT) along pre-surveyed lanes at 72 km/h and measuring when warning interventions from the LDW system are triggered as the vehicle crosses dashed or solid lines with different lateral velocities.
LSS Lane Keeping Assist (LKAS)
The Euro NCAP LSS LKA protocol is designed to evaluate the effectiveness of LKA systems that physically intervene to keep the vehicle within its lane when an unintentional departure is detected. This is done by driving the vehicle under test (VUT) along surveyed lanes at 72 km/h and causing it to drift out of the lane at different lateral velocities. Of particular interest is at which point any warnings are triggered and the correcting lateral acceleration of the vehicle moving back into the lane. The test is conducted as the vehicle moves between lanes across solid and dashed lines, and as it leaves the paved area.
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