I thought this was interesting. The article discusses "medium definition" maps that would be in between standard definition maps and HD maps. The idea is to create maps that are more scalable like standard maps but still provide rich data similar to HD maps to be useful for autonomous driving. So, MD Maps could be the best of both worlds.
Here is the article: The Mapping Singularity Is Near
The article also a nice comparison of SD, MD and HD maps:
Standard Definition Maps
Medium Definition Maps
High Definition Maps
Here is the article: The Mapping Singularity Is Near
The article also a nice comparison of SD, MD and HD maps:
Standard Definition Maps

Medium Definition Maps

High Definition Maps
