This speeds up scenario instantiation (because picking a bus to use can
be spread out over time) and is a step towards simplifying the spawning
code. Starting downtown goes from 12.8s to 2.2s.
All vehicles spawning at a border now regress to using the 1st valid
lane, instead of random. Now that the choice is made when the trip
starts, this could later be improved to pick the least loaded lane.
Now regenerate everything.
widgetry, geom, and abstutil may wind up on crates.io in some form to
let other projects use widgetry. abstio has A/B Street-specific tricks
for reading data on native/web. Note widgetry still depends on abstio,
will figure out how to clean that up next.
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.
