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Anil's avatar

All are copied from the reference as such and are one liners, without any context.

Map matching transforms raw GPS signals into actual road segments.

They use Apache Cassandra to store raw locations for long-term durability.

Apache Cassandra is a distributed database. Yet Cassandra is optimized for write operations.

So they add a Redis cache layer on top of it to shed the read operations.

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Neo Kim's avatar

I see. I didn't want to repeat the information that I included in another article.

You could read this article for more context on map matching: https://newsletter.systemdesign.one/i/139242379/map-matching

Does that help?

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