AI-generated Key Takeaways
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          Routing preferences determine how routes are calculated, considering factors like traffic conditions. 
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          TRAFFIC_UNAWAREprovides the fastest routes without considering real-time traffic, suitable when traffic is irrelevant.
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          TRAFFIC_AWAREbalances speed and accuracy by incorporating live traffic data with some optimizations for reduced latency.
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          TRAFFIC_AWARE_OPTIMALprioritizes accuracy, calculating routes based on real-time traffic for the most precise ETAs, but may have higher latency.
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          The default setting is TRAFFIC_UNAWAREif no routing preference is specified usingROUTING_PREFERENCE_UNSPECIFIED.
A set of values that specify factors to take into consideration when calculating the route.
| Enums | |
|---|---|
| ROUTING_PREFERENCE_UNSPECIFIED | No routing preference specified. Default to TRAFFIC_UNAWARE. | 
| TRAFFIC_UNAWARE | Computes routes without taking live traffic conditions into consideration. Suitable when traffic conditions don't matter or are not applicable. Using this value produces the lowest latency. Note: For DRIVEandTWO_WHEELER, the route and duration chosen are based on road network and average time-independent traffic conditions, not current road conditions. Consequently, routes may include roads that are temporarily closed. Results for a given request may vary over time due to changes in the road network, updated average traffic conditions, and the distributed nature of the service. Results may also vary between nearly-equivalent routes at any time or frequency. | 
| TRAFFIC_AWARE | Calculates routes taking live traffic conditions into consideration. In contrast to TRAFFIC_AWARE_OPTIMAL, some optimizations are applied to significantly reduce latency. | 
| TRAFFIC_AWARE_OPTIMAL | Calculates the routes taking live traffic conditions into consideration, without applying most performance optimizations. Using this value produces the highest latency. |