Examining the feasibility of current spiral curve design controls for LiDAR‐based automated vehicles

Enabling large-scale deployment of automated vehicles (AVs) in the near future requires answering question firstly: whether AVs could safely adapt to as-built road geometry? This study aims examine feasibility current spiral curve design controls for LiDAR-based (LAVs) from perspective available sight distance (ASD). A series tests featuring speed (Vd), lengths tangent (LT) and (LS), circular radii (R), point thresholds detection (NT) were simulated PreScan/MATLAB/Simulink co-simulation platform. The ASDs affected by those parameters’ combined effects analyzed compared with required stopping distances (RSDs) human-driven (HVs) level 3 5 (L3–L5) LAVs followed proposing ASD-oriented safe speeds corresponding limits. results indicate that: (1) combination tangent-spiral curve-circular causes a shorter ASD than that without curve; (2) longer ASD; (3) only low-type R, LS, Vd conditions is feasible L3 while L4 or L5 have difficulties dealing high-type conditions. These findings help understand provide safety-critical references administrators.