UI to bulk extract individual agents' parameters: speed, travel time, delay, origin, destination, etc.

[leminhkieu]

I am just wondering if there's an easy way to extract the interesting parameters/variables for each agent:

• Origin & Destination: Where are they planning to travel to, and from where
• Travel time & Delay: How much time it currently takes them, and how much delay are they experiencing due to the traffic. Some other traffic simulators estimate this section by section by aggregating the delay of many vehicles that are on that section. I'm not sure how can we extract those values for each agent
• Instantaneous speed (spot speed) of the agent
• May be route choice probability as well?

It looks a bit like a wish list but yeah they are gonna be super helpful for traffic engineers

[dabreegster]

Sorry for the delay, I've been out of town.

Origin & Destination: Where are they planning to travel to, and from where

This is input to the simulation. Any travel demand model we hook up or auto-generate from census data and land use will be expressed as a "scenario." https://a-b-street.github.io/docs/tech/dev/formats/scenarios.html is the format.

How much time it currently takes them, and how much delay are they experiencing due to the traffic

This is available per trip, yes. See #549 for some details about how "delay" is defined. I think https://a-b-street.github.io/docs/tech/dev/api.html should expose most of this already; if anything's missing, we probably have the raw data for it and can add another method.

Instantaneous speed (spot speed) of the agent

Not really possible, because A/B Street doesn't really model speed at all. A vehicle goes as fast as possible at any moment, with no smooth acceleration. This is an artifact of https://a-b-street.github.io/docs/tech/trafficsim/discrete_event.html

May be route choice probability as well?

Route choice is totally deterministic right now