solid yellow lines for oneways. dashed looks really strange with offside parking.

data/screenshots/montlake/MANIFEST

@@ -1,12 +1,12 @@
 6a5f5047a0f61a78c36fcd7260a4a506  ../data/screenshots/pending_montlake/01x01_i53.png
-5f1e0f5fbbf4f21def99e7ad3a46abc9  ../data/screenshots/pending_montlake/02x01_i1.png
-0193d5553b12e858c60e1137d180d0e2  ../data/screenshots/pending_montlake/03x01_i0.png
-0005646cbeeb6734658e88aad5e6ee8a  ../data/screenshots/pending_montlake/01x02_i7.png
-038c929b5f6c3f9f0abcd8303490a439  ../data/screenshots/pending_montlake/02x02_i126.png
-e959cf875d432abac114c60f5bb81083  ../data/screenshots/pending_montlake/03x02_i31.png
-55e64d410ee8d71d2c25a991ad498793  ../data/screenshots/pending_montlake/01x03_i97.png
-efea195b9f824508cd3a7fab797151a7  ../data/screenshots/pending_montlake/02x03_i5.png
-9ac4e293a05010def2886a75d2d3eb87  ../data/screenshots/pending_montlake/03x03_i14.png
+d258d93c657eb3c11abee051ef83b12f  ../data/screenshots/pending_montlake/02x01_i1.png
+d2c1635654022caf3e39bc9732f47a25  ../data/screenshots/pending_montlake/03x01_i0.png
+b6e8837586f8658ec7154ac44aed92b5  ../data/screenshots/pending_montlake/01x02_i7.png
+4bd77b889539e91216c39917610091fe  ../data/screenshots/pending_montlake/02x02_i126.png
+bc2ce9535f1a54828afa6478174bc197  ../data/screenshots/pending_montlake/03x02_i31.png
+0290b6304e5a54b7fbef6ce73864ec6c  ../data/screenshots/pending_montlake/01x03_i97.png
+062d30aed46ab62e45177ea95b928ea1  ../data/screenshots/pending_montlake/02x03_i5.png
+532736616cc95e3a9e1f31e8f975ae00  ../data/screenshots/pending_montlake/03x03_i14.png
 9a2783cb96807499dc442e7420bd5a7a  ../data/screenshots/pending_montlake/01x04_i3.png
 1d8b15e910503a1b3a5a3f59f666e0da  ../data/screenshots/pending_montlake/02x04_i27.png
 6d02434823cb264aa25061bbc4dc11c8  ../data/screenshots/pending_montlake/03x04_i13.png
@@ -14,8 +14,8 @@ e151526f03a9ecf3d671c60255e21300  ../data/screenshots/pending_montlake/01x05_i42
 e082dc174f2fb301828ce1fbab598c78  ../data/screenshots/pending_montlake/02x05_i41.png
 e49068d8e47a7766ff1ea574bb96fcee  ../data/screenshots/pending_montlake/03x05_i21.png
 15da92a39d014bfe581743cb3a5fc8e9  ../data/screenshots/pending_montlake/01x06_i11.png
-b3d8fd887c78408d4820ebc77ab80008  ../data/screenshots/pending_montlake/02x06_i9.png
+effddd20a6327d669d59de06641c300b  ../data/screenshots/pending_montlake/02x06_i9.png
 828e3def1e4c41452b9717b4bac07343  ../data/screenshots/pending_montlake/03x06_i17.png
-981c0c3380efaa12d68a6c331baee989  ../data/screenshots/pending_montlake/01x07_i104.png
-3fe6024412700dfb7937b3ea771bbded  ../data/screenshots/pending_montlake/02x07_i19.png
+bbebebbb12dfb2401a26ef3303b32b41  ../data/screenshots/pending_montlake/01x07_i104.png
+6fe3baed6c90dcd1a779d20d66cf6050  ../data/screenshots/pending_montlake/02x07_i19.png
 c28f6208b4b08d00b77b8597666faeca  ../data/screenshots/pending_montlake/03x07_i18.png

docs/new_city.md

@@ -29,7 +29,9 @@ There are Seattleisms baked into the code.
 - `import.sh` should be generalized.
 - The driving side of the road is hard-coded to the right. Look for "driving on
   the left" in `map_model/src/make/half_map.rs`.
-- On-street parking is inferred from a dataset specific to King County GIS. If
-  your city has this information elsewhere, it should be easy to import.
+- On-street parking is mostly not mapped in Seattle. Ideally you should fill out
+  https://wiki.openstreetmap.org/wiki/Key:parking:lane for your city. I'm
+  inferring these tags for most roads based on a King County GIS-specific
+  dataset.
 - Demand data to generate a realistic set of trips comes from an agency specific
   to the Puget Sound, but again, importing this from other sources isn't hard.

game/src/render/lane.rs

@@ -206,7 +206,12 @@ fn calculate_driving_lines(lane: &Lane, parent: &Road, timer: &mut Timer) -> Vec
         .lane_center_pts
         .shift_left(LANE_THICKNESS / 2.0)
         .get(timer);
-    dashed_lines(&lane_edge_pts, Distance::meters(1.0), Distance::meters(1.5))
+    dashed_lines(
+        &lane_edge_pts,
+        Distance::meters(0.25),
+        Distance::meters(1.0),
+        Distance::meters(1.5),
+    )
 }
 
 fn calculate_turn_markings(map: &Map, lane: &Lane, timer: &mut Timer) -> Vec<Polygon> {

game/src/render/mod.rs

@@ -76,9 +76,12 @@ pub fn draw_vehicle(
     }
 }
 
-pub fn dashed_lines(pl: &PolyLine, dash_len: Distance, dash_separation: Distance) -> Vec<Polygon> {
-    let width = Distance::meters(0.25);
-
+pub fn dashed_lines(
+    pl: &PolyLine,
+    width: Distance,
+    dash_len: Distance,
+    dash_separation: Distance,
+) -> Vec<Polygon> {
     if pl.length() < dash_separation * 2.0 + EPSILON_DIST {
         return vec![pl.make_polygons(width)];
     }

game/src/render/road.rs

@@ -2,7 +2,7 @@ use crate::helpers::{ColorScheme, ID};
 use crate::render::{dashed_lines, DrawCtx, DrawOptions, Renderable, OUTLINE_THICKNESS};
 use ezgui::{Color, Drawable, GeomBatch, GfxCtx, Line, Prerender, Text};
 use geom::{Distance, Polygon, Pt2D};
-use map_model::{Map, Road, RoadID, LANE_THICKNESS};
+use map_model::{LaneType, Map, Road, RoadID, LANE_THICKNESS};
 
 pub struct DrawRoad {
     pub id: RoadID,
@@ -26,10 +26,19 @@ impl DrawRoad {
             .lane_center_pts
             .shift_left(LANE_THICKNESS / 2.0)
             .unwrap();
-        draw.extend(
-            cs.get_def("road center line", Color::YELLOW),
-            dashed_lines(&center, Distance::meters(2.0), Distance::meters(1.0)),
-        );
+        let width = Distance::meters(0.25);
+        // If the road is a one-way (only parking and sidewalk on the off-side), draw a solid line
+        if r.children_backwards
+            .iter()
+            .all(|(_, lt)| *lt == LaneType::Parking || *lt == LaneType::Sidewalk)
+        {
+            draw.push(cs.get("road center line"), center.make_polygons(width));
+        } else {
+            draw.extend(
+                cs.get_def("road center line", Color::YELLOW),
+                dashed_lines(&center, width, Distance::meters(2.0), Distance::meters(1.0)),
+            );
+        }
 
         let mut label = Text::new();
         label.add(Line(r.get_name()).size(50));