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Waymo Open Dataset
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Traffic light data description for future and past data items in motion/tfexample #290

Open dvillevald opened 3 years ago

dvillevald commented 3 years ago

It seems that the data dictionary (field definitions) for the traffic light data (current and past) for the motion/tfexample dataset at https://waymo.com/open/data/motion/tfexample is incorrect.

For example, the Description and Value Range for traffic_light_state/past/valid mention time in microseconds while for traffic_light_state/future/timestamp_micros a lane ID is mentioned. Also, num_steps is set to 1 for all future and past traffic light data items while it seems it should be 80 and 10 respectively.

s-ettinger commented 3 years ago

Thank you for the feedback. You are correct. The keys are mixed up. We will correct this. The traffic_light_state/past/timestamp_micros field is the time in microseconds while the traffic_light_state/past/id field is the associated lane ID and the traffic_light_state/past/valid field is the {0, 1} valid bit.