Seamless Mapping  for CCAM / PDI vehicles 

High-quality, seamless digital maps are essential for automated driving, complementing vehicle sensors with contextual information such as speed limits and traffic directions. While governments maintain national authoritative geospatial databases, initiatives like Overture Maps (OM) provide open, global data. However, systematic comparisons between authoritative and open road data have been limited. A methodology for linking and comparing heterogeneous road datasets through their linear referencing systems (LRS) is a matter of advance in CCAM / PDI uses.