Systems and methods for updating navigational maps

Autonomous vehicles rely on accurate maps to navigate. This invention describes a system where a self-driving car continuously compares what its sensors detect in the real world with its stored navigation map. If it finds any inconsistencies, like a new road layout or obstacle, it then triggers a more detailed mapping process to update its internal map. The vehicle then uses this newly updated map to continue driving, using a less resource-intensive method to spot initial differences before engaging the full mapping system.