Method and system for assessing and mitigating risks encounterable by an autonomous vehicle

A system for evaluating risk for a vehicle, the system comprising:

• a set of sensors onboard the vehicle;
• a set of processors in communication with the set of sensors, wherein the set of processors:
• at each of a set of times during operation of the vehicle:
• collects a dataset of environmental information from the set of sensors;
• identifies a set of environmental objects in an environment of the vehicle based on the dataset;
• with a simulator implemented by the set of processors, simulates a set of future scenarios based on the dataset, each of the set of future scenarios comprising a set of time points later than the time, the set of future scenarios comprising:
• a first set of scenarios representing the environment;
• a second set of scenarios representing one or more alterations of the environment;
• based on the first scenario, identifies a set of risks;
• calculates a set of metrics based on the set of risks, wherein calculating the set of metrics comprises:
• calculating a first set of metrics based on the first set of scenarios;
• calculating a second set of metrics based on the first set of scenarios and at least one of the second sets of scenarios;
• aggregates the first and second sets of metrics to produce an aggregated risk;
• implements operation of the vehicle according to the aggregated risk.