mirror of
https://github.com/a-b-street/abstreet.git
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59 lines
2.2 KiB
Markdown
59 lines
2.2 KiB
Markdown
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## Gameplay
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Most players will repeatedly:
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1) Start in sandbox mode, watching a traffic simulation and browsing around for problems.
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2) Use the map edit mode to change lane types and adjust intersections to try
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to fix some particular problem.
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3) Run an A/B test to compare how the same trips perform with and without some edits.
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## Parking
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On-street parking lanes are modeled, with the available spots based on the
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road's length. The blockface dataset from King County GIS is used to infer
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which roads have a parking lane -- but this dataset isn't meant to be so
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accurate, so the results are often incorrect.
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Driving trips between buildings (not starting or ending outside the map) are
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multi-modal: the trip starts with a pedestrian leaving a building by foot,
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walking to the closest parked car that they own, driving to their destination,
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and then wandering around to look for a free parking spot (which can take a
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while if there are no free parking spots nearby!). Simulations start with each
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building having some number of parked cars spawned somewhere close by.
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gif of ped entering a car
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gif of ped parking a car and going to a bldg
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TODO:
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- More accurate data for the number of cars associated with each household
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- Distinguish between types of on-street parking (free, pay by the hour, residences-only restrictions)
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- Off-street parking (driveways, public and private parking lots and garages)
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## Trips
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During a typical day in Seattle, where do people travel, when do they depart,
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and do they walk, bike, bus, or drive there? A/B Street imports trip data from
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PSRC's [Soundcast](https://www.psrc.org/activity-based-travel-model-soundcast),
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which models a synthetic population and has been carefully calibrated to match
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census data, travel surveys, landuse, vehicle counts, and so on.
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Mission Edit mode contains tools to visualize individual and aggregate trips
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from this data, without running a traffic simulation.
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gif of these tools
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TODO:
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- Trips that begin and end outside the boundary of a map, but pass through it,
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are currently skipped. This happens often for trips passing through I5 or
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520.
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## Map borders
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## Generalizing to other cities
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anywhere with OSM data... reasonable defaults
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