Transportation planning and traffic simulation software for creating cities friendlier to walking, biking, and public transit
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Dustin Carlino 544dda9c5c When looking for turn conflicts, treat reserved turns (created before
starting an uber-turn) the same as accepted turns, updating the
blocked-by graph and allowing a movement to start if a cycle is
detected.

No effect in montlake or lakeslice, and very slight progress at the
Krakow roundabout for #382 -- increasing a tiny 26 trips by 7:20 am.
2020-12-03 10:56:42 -08:00
.github/workflows Disable caching on Mac builds; something keeps breaking. [rebuild] 2020-12-02 13:20:43 -08:00
abstutil Simpler abstutil APIs: return string errors immediately, don't make callers transform. We don't need to distinguish different error types anywhere. 2020-12-02 08:44:07 -08:00
book A fresh attempt at finding the root causes of gridlock map-wide 2020-12-01 10:50:05 -08:00
collisions Display tooltips in the collision viewer. #87 2020-11-10 12:49:08 -08:00
convert_osm Infer parking tags better for dual_carriageway=yes. Also stop inferring parking on trunk roads like Aurora. And pull in fresh Seattle OSM, with lots of dual_carriageways tagged. #230 2020-11-14 17:32:34 -08:00
data Handle starting/ending in a zone when pathfinding, regardless of Dijkstra/CH implementation. #411 2020-12-02 10:42:01 -08:00
experiment Make the blocked-by graph used for debugging and the API detect problems 2020-12-03 10:21:43 -08:00
fifteen_min Start refactoring a common UI pattern: recalculate some value only when (#406) 2020-11-25 12:22:11 -08:00
game Run the experiment on the web 2020-12-02 13:44:10 -08:00
geom Figure out when we pass a building along a road 2020-12-02 18:00:51 -08:00
headless Expose the blocked-by graph through the API, and add root-cause analysis 2020-11-30 17:01:15 -08:00
importer Fold number of housing units into Building; ditch the extra file approach. 2020-12-01 12:43:19 -08:00
kml Fold number of housing units into Building; ditch the extra file approach. 2020-12-01 12:43:19 -08:00
map_editor Don't specify a widgetry backend by default; force every user to set the feature explicitly. 2020-11-22 18:35:03 -08:00
map_gui Overhaul building colors [rebuild] 2020-12-02 13:01:01 -08:00
map_model Handle starting/ending in a zone when pathfinding, regardless of Dijkstra/CH implementation. #411 2020-12-02 10:42:01 -08:00
osm_viewer Add a minimap 2020-11-28 09:45:58 -08:00
parking_mapper Cleanup from the great app split: 2020-11-23 17:58:32 -08:00
release Run the experiment on the web 2020-12-02 13:44:10 -08:00
sim When looking for turn conflicts, treat reserved turns (created before 2020-12-03 10:56:42 -08:00
tests Remove PersonID from Scenario; the simulation will assign IDs sequentially. They're redundant. #258 2020-11-18 14:13:25 -08:00
traffic_seitan Plumb the intended TripMode for cancelled trips; instead make the trip duration optional. Breaking change for anyone using the API. Makes way more sense. [rebuild] [release] 2020-11-22 11:21:44 -08:00
updater Refactor github workflow, since most steps are OS-independent. Build all of the separate binaries. [rebuild] [release] 2020-11-29 16:01:18 -08:00
widgetry Figure out when we pass a building along a road 2020-12-02 18:00:51 -08:00
widgetry_demo Consolidate console_log setup into abstutil, now that there are multiple binaries that should all have the behavior. 2020-11-26 14:40:05 -08:00
.gitignore Import Paris, for helping the OSM community visualize all the awesome pop-up bike lanes there 2020-11-13 17:23:36 -08:00
Cargo.lock Figure out when we pass a building along a road 2020-12-02 18:00:51 -08:00
Cargo.toml Split out the 15min tool to its own crate. 2020-11-23 17:58:32 -08:00
clippy.sh round of clippy. not fixing everything. 2019-12-11 16:17:15 -08:00
format_md.sh Fix more broken links. Sadly can't enable linkcheck, because it has two false positives. 2020-09-24 19:37:16 -07:00
import.sh util to convert geojson to osmosis polygon (#309) 2020-09-02 15:29:25 -07:00
LICENSE Initial import of A/B Street prototype. 2018-03-13 08:06:03 -07:00
README.md new release 2020-11-29 17:02:34 -08:00
rgrep.sh Set up a test scenario for lane-changing to reproduce #382. The same 2020-11-11 11:33:47 -08:00
rustfmt.toml tweaking rustfmt options; the long literal string vecs in tutorial look awful 2020-01-21 15:20:02 -08:00

A/B Street

Ever been stuck in traffic on a bus, wondering why is there legal street parking instead of a dedicated bus lane? A/B Street is a game exploring how small changes to a city affect the movement of drivers, cyclists, transit users, and pedestrians.

Show, don't tell

Alpha release trailer

Find a problem:

exploring_traffic

Make some changes:

editing_map

Measure the effects:

evaluating_impacts

Documentation

Roadmap and contributing

See the roadmap for current work, including ways to help. If you want to bring this to your city or if you're skilled in design, traffic simulation, data visualization, or civic/government outreach, please contact Dustin Carlino at dabreegster@gmail.com. Follow r/abstreet for weekly updates or @CarlinoDustin for occasional videos of recent progress.

Project mission

If you fix some traffic problem while playing A/B Street, my ultimate goal is for your changes to become a real proposal for adjusting Seattle's infrastructure. A/B Street is of course a game, using a simplified approach to traffic modeling, so city governments still have to evaluate proposals using their existing methods. A/B Street is intended as a conversation starter and tool to communicate ideas with interactive visualizations.

Why not leave city planning to professionals? People are local experts on the small slice of the city they interact with daily -- the one left turn lane that always backs up or a certain set of poorly timed walk signals. Laura Adler writes:

"Only with simple, accessible simulation programs can citizens become active generators of their own urban visions, not just passive recipients of options laid out by government officials."

Existing urban planning software is either proprietary or hard to use. A/B Street strives to be highly accessible, by being a fun, engaging game. See here for more guiding principles.

Credits

Core team:

Others:

Data: