If an intersection is short, and bike is spawned, another bike coming along will attempt to fit if force_entry is true. This results in a panic. To address this, if the reserved_length is >= the geom_len, false will be returned, even if forced_entry is true.
* Add a Variable phase
Variable provides a min duration, a delay duration, and an additional duration. The maximum cycle time is min + additional. Once min has been exhausted, if there is demand, the cycle is extended by delay until there isn't any demand or the additional duration has been consumed.
#295
saves lots of callers from cloning the request and separately plumbing
around the requested start/end distance. Also a step towards exposing
more granular distance crossed in a path for #392.
Still a few more places to simplify, but will do in a separate, smaller
change.
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.
1. Allow lane changing in an uber turn. Because of the way uber turns
work, we lock in and commit to all the lane changes just before
entering the uber turn.
2. Avoid overzealous lane changing by combining number-of-lanes-crossed
and numer-of-vehicles-in-lane into a single cost, rather than always
preferring the least number-of-vehicles-in-lane.
3. Don't lane-change unless the candidate lane's cost is strictly better
than the current lane cost.
optimizations avoided serializing Analytics and paths of to-be-created
agents, to reduce the file size. The logic to manage all of this isn't
worth the complexity anymore, because:
1) We don't queue up a bunch of spawn commands anymore; we defer
pathfinding until the last minute anyway.
2) We're not using savestates except for occasional manual debugging.
Previously, there was an idea to quickly preview prebaked traffic
mid-day. That idea was never fleshed out.
The schedule validation changes slightly. No-op trips between the same
origin/destination are now an error and get filtered out.
huge_seattle scenario goes from 129MB to 110MB with the redundant
endpoints removed.
TripEndpoints from TripLegs. #258
NOW regenerate scenarios. I'm confident this sweeping refactor didn't
break behavior, because prebaked data didn't budge. huge_seattle
scenario went from 147MB to 129MB. Not bad!
in favor of Option<TripEndpoint>. The bike/car contention tutorial stage
has to be tweaked manually, since there's no longer a nice way to spawn
vehicles at a non-border intersection and force them to use a certain
DirectedRoad. #258
remote trip goes between two locations off-map, specified just by a GPS
coordinate. The trips aren't simulated at all. They were originally
added to support Orestis's pandemic model, to handle transmission
off-map in shared buildings. This work has died off, there are no other
anticipated use cases for remote trips, and they complicate bigger
refactorings. #258
This also has the nice side effect of substantially reducing scenario
size -- huge_seattle from 177MB to 147MB. That unused metadata was
expensive!
biking_connection, which does a slow graph floodfill.
Prolet robot in Krakow: from 22.6s to 10.1s
Because Krakow now uses separate sidewalks and they're not properly
connected to the road graph yet, biking_connection has to search very
far. The speedup isn't noticeable in other cases.
struct. Whatever choices we make next about naming cities hierarchially
or not can be managed in just one place. #326
This is a pretty huge change, but the compiler gives reasonable
confidence it's correct. More bugs are likely to crop up in the next
step, when filenames start being namespaced by the city too.
order of vehicle deletion, we try to ask about stop sign and traffic
signal movements that may be deleted and would be irrelevant anyway if a
different deletion order happened. #312
We should really defer wakeup_waiting until after all cleanup is done,
but for now, willing to risk some stuckness at a stop sign...
1) A car tries to spawn, but fails because there's something in the way
2) The player makes live edits
3) The retry occurs, but the path has become invalid due to edits
Need to make the detection of this more efficient later.
Originally, all trips in the entire scenario had their paths calculated
at the beginning of a simulation. The sum time is faster than
calculating them individually, because we could use multiple threads.
But a while ago, this was disabled by default to improve the startup
latency. Especially if a player isn't making it through an entire day
anyway, calculating all of the paths upfront is a waste and slows down
their initial experience.
Now I'm hitting all sorts of bugs with live map edits, because the map
change between initial planning and when a trip starts. Previously, the
PathRequest was calculated up-front and resolved when a trip starts. But
even this PathRequest can become stale. So now always calculate it when
a trip actually starts, looking at the current map. To do this sanely,
totally rip out support for --pathfinding_upfront.
If we really want it later for performance, we could add it back in, and
be very careful about detecting stale PathRequests and recomputing. But
for now, there's no use case for this, so it'd needlessly complicate the
code.
Downtown forms gridock just from everyone pouring into Harborview! The
point of --infinite_parking is to simplify the sim by not modelling the
impact of parking. #368
set of agents to draw either from the simulation or from this
"time-traveler" plugin, which would let you rewind sim time. That plugin
is long gone, and it never worked well, because much of the UI would use
the GetDrawAgents to select something, then query the live sim for lots
of details anyway. The plugin never served all of those calls, so the
results would be kind of out-of-sync anyway.
There are some parts of the UI that need to temporarily not draw agents.
Use the same suspended_sim trick that edit mode does.
* Initial storing of intersection delays
* Initial highlighting of delays on route
* Added label of delay
* Info overlay works
* Added supoprt for pedestrian delays (only intersection delay currently)
Bike also works, but is treated as a car, so the avg speed is flagged as very slow (Needs fix)
* Capitalised describe trip phase
Now uses min of (speed limit and vehicle max speed) for the maximum speed check
Added trip blocked time query
Lots of work on tool tips
Icons are broke
* Nearly complete, just fmting and a crash to fix
Color assertion?
* Fixed text font colour crash
Added new custom TextSpan size function
* Cargo +nightly fmt
* Cargo +nightly fmt
* Clion auto import formatting
Doesn't quite match the existing "changes"
* Fixing merge issues
* Fixing icon placement issues
* Requested changes (Part 1)
* Requested changes (Part 2)
Co-authored-by: Sam <a>
Co-authored-by: Dustin Carlino <dabreegster@gmail.com>
only allow the leftmost source lane to turn to any destination lane. As
a future improvment, need to handle multiple explicitly tagged left turn
lanes, but this gets closer to reality, particularly helping some crazy
maneuvers along Mercer in downtown.
*or right
Also had to update lanes along Madison and fiddle a bit to keep
lakeslice running. Spotted some major traffic signal bottlenecks due to
stage generation falling back, will iterate on that separately.
skipped outright. Now they redirect to a reasonably close building that
isn't blackholed. #329
(For context, https://dabreegster.github.io/abstreet/map/index.html#connectivity
explains "blackhole")
I'm increasingly convinced I made the wrong decision to split the
normal/infinite parking implementation. It's low-priority, but I'll try
consolidating them later.
refactor, they complicate the function signatures significantly and have
no observable perf impact, since all of the methods just happen in map
importing.
it for the prolet robot model. Expose it in the trip info panel.
Total scenario size from 385MB to 412MB, but that's not so bad, and this
seems worth it.
proles: account for work capacity
previously all residents went to work on the map, but if the
neighborhood is mostly residential that meant they were "competing"
heavily for the scarce jobs available on the map.
with this commit, we do a better job of spreading worker/residential
demand to account for what is available, and fill in the gap with
off-map trip origins/desitinations.
e.g. if a neighborhood is mostly residential, we have folks commute off
of map. If a neighborhood is mostly commercial, we have folks commute
into the map.
controller terminology. Part of #197.
Holding off on touching PhaseType and all of the serialized
seattle_traffic_signals format, since this will all change in Kyle's PR
anyway.
not split by direction. Update many callers, and lock down the
visibility of the old methods.
Tested a few maps manually to make sure there's no behavioral diff. Only
problem right now is the z-order of adjacent lanes covering up half of
the white stripe sometimes. Have some ideas to fix that later, and not
_super_ important in the meantime.
the API (#245), and beef up the Python example.
Impact to prebaked file size is tiny -- for lakeslice, the original
intersection_thruput is 2MB and the new traffic_signal_thruput is 435KB.
[rebuild]
new trips, then seeing the impact they'll have on the normal weekday
scenario. So how much externality would be caused by a bunch of new
trips if some building is built?
Demo showing the whole flow: https://youtu.be/adpED0KGQ7Q. Why do those
few trips at the beginning impact some later trips so much? Who knows.
Likely parking spots get gobbled up.
trips as a Scenario to later re-run. This is useful for quickly defining
"test cases" for development, and it's a start to a UI for letting
players specify (and eventually share) traffic patterns they define.
when allowing a car to start a turn. It causes
https://github.com/dabreegster/abstreet/pull/276#discussion_r470269394
and also the lakeslice scenario to gridlock (a regression that began a
few weeks ago). But keep the flag on for now, to keep the montlake
scenaro running at least.
https://dabreegster.github.io/abstreet/trafficsim/gridlock.html has
notes about the many different causes and in-progress fixes for
gridlock. This experiment hasn't been explained very well yet, but
roughly it treats a cluster of traffic signals as one, so that once a
vehicle gains access through the first light, they guarantee immediate
access through the entire sequence. This interacts with the "don't block
the box" behavior (don't start a turn if you might get stuck in the
intersection) strangely.
While attempting to get this rollback to work, I also had to manually
redraw the traffic lights for a few manually specified intersections.
They became out-of-date a few weeks ago when I cleaned up the OSM
geometry upstream and the referenced IDs changed, and I hadn't bothered
to re-time the signals. Luckily, with the new multi-signal editor,
redrawing the timing was much easier than originally!
Regenerated all data and lots of bus routes vanished. Plan to get back
to that project soon.
