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Fix a bug with matching traffic signals tagged along a way to the

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intersection. When the signal happened to be on a node that didn't alter
the angle of the road, it was incorrectly getting dropped before.

Not regenerating all map data just yet, but manually verified along
Newmarket Rd in Cambridge. #449
This commit is contained in:
Dustin Carlino 2021-01-25 10:04:02 -08:00
parent 56101addcf
commit e7e8bb2ca0
2 changed files with 20 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
convert_osm/src/extract.rs
View File

@ -7,7 +7,7 @@ use abstutil::{retain_btreemap, Tags, Timer};
use geom::{HashablePt2D, Polygon, Pt2D, Ring};
use kml::{ExtraShape, ExtraShapes};
use map_model::raw::{RawArea, RawBuilding, RawMap, RawParkingLot, RawRoad, RestrictionType};
use map_model::{osm, Amenity, AreaType, DrivingSide, NamePerLanguage};
use map_model::{osm, Amenity, AreaType, Direction, DrivingSide, NamePerLanguage};
use crate::osm_geom::{get_multipolygon_members, glue_multipolygon, multipoly_geometry};
use crate::{transit, Options};
@ -15,8 +15,8 @@ use crate::{transit, Options};
pub struct OsmExtract {
/// Unsplit roads
pub roads: Vec<(WayID, RawRoad)>,
/// Traffic signals to the direction they apply (or just true if unspecified)
pub traffic_signals: HashMap<HashablePt2D, bool>,
/// Traffic signals to the direction they apply
pub traffic_signals: HashMap<HashablePt2D, Direction>,
pub osm_node_ids: HashMap<HashablePt2D, NodeID>,
/// (ID, restriction type, from way ID, via node ID, to way ID)
pub simple_turn_restrictions: Vec<(RestrictionType, WayID, NodeID, WayID)>,
@ -69,9 +69,12 @@ pub fn extract_osm(map: &mut RawMap, opts: &Options, timer: &mut Timer) -> OsmEx
out.osm_node_ids.insert(node.pt.to_hashable(), *id);
if node.tags.is(osm::HIGHWAY, "traffic_signals") {
let backwards = node.tags.is("traffic_signals:direction", "backward");
out.traffic_signals
.insert(node.pt.to_hashable(), !backwards);
let dir = if node.tags.is("traffic_signals:direction", "backward") {
Direction::Back
} else {
Direction::Fwd
};
out.traffic_signals.insert(node.pt.to_hashable(), dir);
}
for amenity in get_bldg_amenities(&node.tags) {
out.amenities.push((node.pt, amenity));

24
convert_osm/src/split_ways.rs
View File

@ -3,12 +3,12 @@ use std::collections::HashMap;
use abstutil::{Counter, Timer};
use geom::{Distance, HashablePt2D, Pt2D};
use map_model::raw::{OriginalRoad, RawIntersection, RawMap};
use map_model::{osm, Amenity, IntersectionType};
use map_model::{osm, Amenity, Direction, IntersectionType};
use crate::extract::OsmExtract;
/// Returns amenities and a mapping of all points to split road. (Some internal points on roads are
/// removed, so this mapping isn't redundant.)
/// Returns amenities and a mapping of all points to split road. (Some internal points on roads get
/// removed in this call, so this mapping isn't redundant.)
pub fn split_up_roads(
map: &mut RawMap,
mut input: OsmExtract,
@ -80,9 +80,13 @@ pub fn split_up_roads(
i1,
i2: *i2,
};
for pt in &pts {
// Note we populate this before dedupe_angles, so even if some points are removed,
// we can still associate them to the road.
for (idx, pt) in pts.iter().enumerate() {
if idx != 0 && idx != pts.len() - 1 {
pt_to_road.insert(pt.to_hashable(), id);
}
}
r.center_points = dedupe_angles(std::mem::replace(&mut pts, Vec::new()));
// Start a new road
@ -170,19 +174,11 @@ pub fn split_up_roads(
timer.start("match traffic signals to intersections");
// Handle traffic signals tagged on incoming ways and not at intersections
// (https://wiki.openstreetmap.org/wiki/Tag:highway=traffic%20signals?uselang=en#Tag_all_incoming_ways).
let mut pt_to_road: HashMap<HashablePt2D, OriginalRoad> = HashMap::new();
for (id, r) in &map.roads {
for (idx, pt) in r.center_points.iter().enumerate() {
if idx != 0 && idx != r.center_points.len() - 1 {
pt_to_road.insert(pt.to_hashable(), *id);
}
}
}
for (pt, forwards) in input.traffic_signals {
for (pt, dir) in input.traffic_signals {
if let Some(r) = pt_to_road.get(&pt) {
// Example: https://www.openstreetmap.org/node/26734224
if !map.roads[r].osm_tags.is(osm::HIGHWAY, "construction") {
let i = if forwards { r.i2 } else { r.i1 };
let i = if dir == Direction::Fwd { r.i2 } else { r.i1 };
map.intersections.get_mut(&i).unwrap().intersection_type =
IntersectionType::TrafficSignal;
}