Inaccurate agent speed in SUMO

[liamchzh]

Need to dig into the sumo traffic sim, to see whether SMARTS set the correct speed for agents.

[Gamenot]

# sumo version 1.8
# python 3.7
# SMARTS v0.4.12 release
python examples/single_agent.py scenarios/straight --headless

I am seeing some difference in speed at least what sumo-gui is telling me:

And then an example with a bubble agent:

I wonder if it is only counting speed in direction along the lane. Even still, it means that there is a significant difference.

[liamchzh]

map.zip

Can you try using this map? They reported that the speed ONLY drops when the agent is passing the intersection at the bottom. They also mentioned that the difference was significant, like 10x smaller than it should be.

[Gamenot]

SUMO's speed here is the projection to the lane from the vehicle velocity.