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Estimate street parking in the 15 min walkshed tool. #393

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This commit is contained in:
Dustin Carlino 2020-12-19 15:27:12 -08:00
parent ab92a387f2
commit df5b8c07eb
2 changed files with 33 additions and 3 deletions
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21
fifteen_min/src/isochrone.rs
View File

@ -1,9 +1,11 @@
use std::collections::HashMap;
use std::collections::{HashMap, HashSet};
use abstutil::MultiMap;
use geom::{Duration, Polygon};
use map_gui::tools::{amenity_type, Grid};
use map_model::{connectivity, BuildingID, BuildingType, Map, Path, PathConstraints, PathRequest};
use map_model::{
connectivity, BuildingID, BuildingType, LaneType, Map, Path, PathConstraints, PathRequest,
};
use widgetry::{Color, Drawable, EventCtx, GeomBatch};
use crate::App;
@ -23,6 +25,8 @@ pub struct Isochrone {
/// How many people live in the returned area, according to estimates included in the map (from
/// city-specific parcel data, guesses from census, or a guess based on OSM tags)
pub population: usize,
/// How many sreet parking spots are on the same road as any buildings returned.
pub onstreet_parking_spots: usize,
}
impl Isochrone {
@ -38,6 +42,7 @@ impl Isochrone {
let mut amenities_reachable = MultiMap::new();
let mut population = 0;
let mut all_roads = HashSet::new();
for b in time_to_reach_building.keys() {
let bldg = app.map.get_b(*b);
for amenity in &bldg.amenities {
@ -52,6 +57,17 @@ impl Isochrone {
}
_ => {}
}
all_roads.insert(app.map.get_l(bldg.sidewalk_pos.lane()).parent);
}
let mut onstreet_parking_spots = 0;
for r in all_roads {
let r = app.map.get_r(r);
for (l, _, lt) in r.lanes_ltr() {
if lt == LaneType::Parking {
onstreet_parking_spots += app.map.get_l(l).number_parking_spots();
}
}
}
Isochrone {
@ -61,6 +77,7 @@ impl Isochrone {
time_to_reach_building,
amenities_reachable,
population,
onstreet_parking_spots,
}
}

15
fifteen_min/src/viewer.rs
View File

@ -101,7 +101,7 @@ impl State<App> for Viewer {
"About" => {
return Transition::Push(PopupMsg::new(
ctx,
"15-minute neighborhoods",
"15-minute neighborhood explorer",
vec![
"What if you could access most of your daily needs with a 15-minute \
walk or bike ride from your house?",
@ -111,6 +111,11 @@ impl State<App> for Viewer {
policy changes could lead to 15-minute neighborhoods.",
"This tool lets you see what commercial amenities are near you right \
now, using data from OpenStreetMap.",
"",
"Note that sidewalks and crosswalks are assumed on most roads.",
"Especially around North Seattle, many roads lack sidewalks and \
aren't safe for some people to use.",
"We're working to improve the accuracy of the map.",
],
));
}
@ -209,6 +214,14 @@ fn build_panel(ctx: &mut EventCtx, app: &App, start: &Building, isochrone: &Isoc
.draw(ctx),
);
rows.push(
Text::from_all(vec![
Line("Estimated street parking spots: ").secondary(),
Line(prettyprint_usize(isochrone.onstreet_parking_spots)),
])
.draw(ctx),
);
for (amenity, buildings) in isochrone.amenities_reachable.borrow() {
rows.push(
Btn::text_fg(format!("{}: {}", amenity, buildings.len())).build(ctx, *amenity, None),