Table 1 Physical simulation accuracy comparison (80km/h obstacle avoidance scenario).
From: Urban traffic digital twin system development in unity
Metric | Real vehicle data | Traditional nonlinear model | Unity optimized model | Error |
|---|---|---|---|---|
Maximum Lateral Acceleration | 6.8 m/s2 | 6.7 m/s2 | 6.5 m/s2 | 4.4% |
Steering Response Delay | 120ms | 125ms | 130ms | 8.3% |
Trajectory Tracking Error | - | 0.21m | 0.23m | 9.5% |
Yaw Rate Peak | 28°/s | 27.5°/s | 26.8°/s | 4.3% |
