From 180a2bbd507411c2394bd5d0a368b48738d1bd20 Mon Sep 17 00:00:00 2001
From: Kyle Hensel <k.y.l.e@outlook.co.nz>
Date: Sat, 25 May 2024 16:01:04 +1000
Subject: [PATCH] render oneway arrows for the `conveying` tag

---
 modules/osm/tags.js  |  5 +++++
 modules/svg/lines.js | 13 +++++++++++--
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/modules/osm/tags.js b/modules/osm/tags.js
index eeb40e8b1..cb77b5672 100644
--- a/modules/osm/tags.js
+++ b/modules/osm/tags.js
@@ -135,6 +135,11 @@ export var osmOneWayTags = {
         't-bar': true,
         'zip_line': true
     },
+    'conveying': {
+        'forward': true,
+        'backward': true,
+        'reversible': true,
+    },
     'highway': {
         'motorway': true
     },
diff --git a/modules/svg/lines.js b/modules/svg/lines.js
index d380c5658..e960087f2 100644
--- a/modules/svg/lines.js
+++ b/modules/svg/lines.js
@@ -254,9 +254,18 @@ export function svgLines(projection, context) {
             var onewayArr = v.filter(function(d) { return d.isOneWay(); });
             var onewaySegments = svgMarkerSegments(
                 projection, graph, 35,
-                function shouldReverse(entity) { return entity.tags.oneway === '-1'; },
+                function shouldReverse(entity) {
+                    return (
+                        entity.tags.oneway === '-1'
+                        || entity.tags.conveying === 'backward'
+                    );
+                },
                 function bothDirections(entity) {
-                    return entity.tags.oneway === 'reversible' || entity.tags.oneway === 'alternating';
+                    return (
+                        entity.tags.oneway === 'alternating'
+                        || entity.tags.oneway === 'reversible'
+                        || entity.tags.conveying === 'reversible'
+                    );
                 }
             );
             onewaydata[k] = utilArrayFlatten(onewayArr.map(onewaySegments));