diff --git a/src/road_gui.cpp b/src/road_gui.cpp
--- a/src/road_gui.cpp
+++ b/src/road_gui.cpp
@@ -294,7 +294,7 @@ static bool RoadToolbar_CtrlChanged(Wind
 	if (w->IsWidgetDisabled(WID_ROT_REMOVE)) return false;
 
 	/* allow ctrl to switch remove mode only for these widgets */
-	for (uint i = WID_ROT_ROAD_X; i <= WID_ROT_AUTOROAD; i++) {
+	for (WidgetID i = WID_ROT_ROAD_X; i <= WID_ROT_AUTOROAD; i++) {
 		if (w->IsWidgetLowered(i)) {
 			ToggleRoadButton_Remove(w);
 			return true;
@@ -403,7 +403,7 @@ struct BuildRoadToolbarWindow : Window {
 		this->ReInit();
 	}
 
-	void SetStringParameters(int widget) const override
+	void SetStringParameters(WidgetID widget) const override
 	{
 		if (widget == WID_ROT_CAPTION) {
 			if (this->rti->max_speed > 0) {
@@ -470,7 +470,7 @@ struct BuildRoadToolbarWindow : Window {
 		}
 	}
 
-	void OnClick([[maybe_unused]] Point pt, int widget, [[maybe_unused]] int click_count) override
+	void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
 	{
 		_remove_button_clicked = false;
 		_one_way_button_clicked = false;
@@ -1010,13 +1010,15 @@ struct BuildRoadDepotWindow : public Pic
 		this->LowerWidget(_road_depot_orientation + WID_BROD_DEPOT_NE);
 		if (RoadTypeIsTram(_cur_roadtype)) {
 			this->GetWidget<NWidgetCore>(WID_BROD_CAPTION)->widget_data = STR_BUILD_DEPOT_TRAM_ORIENTATION_CAPTION;
-			for (int i = WID_BROD_DEPOT_NE; i <= WID_BROD_DEPOT_NW; i++) this->GetWidget<NWidgetCore>(i)->tool_tip = STR_BUILD_DEPOT_TRAM_ORIENTATION_SELECT_TOOLTIP;
+			for (WidgetID i = WID_BROD_DEPOT_NE; i <= WID_BROD_DEPOT_NW; i++) {
+				this->GetWidget<NWidgetCore>(i)->tool_tip = STR_BUILD_DEPOT_TRAM_ORIENTATION_SELECT_TOOLTIP;
+			}
 		}
 
 		this->FinishInitNested(TRANSPORT_ROAD);
 	}
 
-	void UpdateWidgetSize(int widget, Dimension *size, [[maybe_unused]] const Dimension &padding, [[maybe_unused]] Dimension *fill, [[maybe_unused]] Dimension *resize) override
+	void UpdateWidgetSize(WidgetID widget, Dimension *size, [[maybe_unused]] const Dimension &padding, [[maybe_unused]] Dimension *fill, [[maybe_unused]] Dimension *resize) override
 	{
 		if (!IsInsideMM(widget, WID_BROD_DEPOT_NE, WID_BROD_DEPOT_NW + 1)) return;
 
@@ -1024,7 +1026,7 @@ struct BuildRoadDepotWindow : public Pic
 		size->height = ScaleGUITrad(48) + WidgetDimensions::scaled.fullbevel.Vertical();
 	}
 
-	void DrawWidget(const Rect &r, int widget) const override
+	void DrawWidget(const Rect &r, WidgetID widget) const override
 	{
 		if (!IsInsideMM(widget, WID_BROD_DEPOT_NE, WID_BROD_DEPOT_NW + 1)) return;
 
@@ -1038,7 +1040,7 @@ struct BuildRoadDepotWindow : public Pic
 		}
 	}
 
-	void OnClick([[maybe_unused]] Point pt, int widget, [[maybe_unused]] int click_count) override
+	void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
 	{
 		switch (widget) {
 			case WID_BROD_DEPOT_NW:
@@ -1178,7 +1180,7 @@ public:
 		const RoadTypeInfo *rti = GetRoadTypeInfo(_cur_roadtype);
 		this->GetWidget<NWidgetCore>(WID_BROS_CAPTION)->widget_data = rti->strings.picker_title[rs];
 
-		for (uint i = RoadTypeIsTram(_cur_roadtype) ? WID_BROS_STATION_X : WID_BROS_STATION_NE; i < WID_BROS_LT_OFF; i++) {
+		for (WidgetID i = RoadTypeIsTram(_cur_roadtype) ? WID_BROS_STATION_X : WID_BROS_STATION_NE; i < WID_BROS_LT_OFF; i++) {
 			this->GetWidget<NWidgetCore>(i)->tool_tip = rti->strings.picker_tooltip[rs];
 		}
 
@@ -1303,7 +1305,7 @@ public:
 		return ES_NOT_HANDLED;
 	}
 
-	void OnEditboxChanged(int widget) override
+	void OnEditboxChanged(WidgetID widget) override
 	{
 		if (widget == WID_BROS_FILTER_EDITBOX) {
 			string_filter.SetFilterTerm(this->filter_editbox.text.buf);
@@ -1341,7 +1343,7 @@ public:
 		}
 	}
 
-	void UpdateWidgetSize(int widget, Dimension *size, [[maybe_unused]] const Dimension &padding, [[maybe_unused]] Dimension *fill, [[maybe_unused]] Dimension *resize) override
+	void UpdateWidgetSize(WidgetID widget, Dimension *size, [[maybe_unused]] const Dimension &padding, [[maybe_unused]] Dimension *fill, [[maybe_unused]] Dimension *resize) override
 	{
 		switch (widget) {
 			case WID_BROS_NEWST_LIST: {
@@ -1405,7 +1407,7 @@ public:
 		}
 	}
 
-	void DrawWidget(const Rect &r, int widget) const override
+	void DrawWidget(const Rect &r, WidgetID widget) const override
 	{
 		switch (GB(widget, 0, 16)) {
 			case WID_BROS_STATION_NE:
@@ -1485,7 +1487,7 @@ public:
 		}
 	}
 
-	void SetStringParameters(int widget) const override
+	void SetStringParameters(WidgetID widget) const override
 	{
 		if (widget == WID_BROS_SHOW_NEWST_TYPE) {
 			const RoadStopSpec *roadstopspec = RoadStopClass::Get(_roadstop_gui_settings.roadstop_class)->GetSpec(_roadstop_gui_settings.roadstop_type);
@@ -1493,7 +1495,7 @@ public:
 		}
 	}
 
-	void OnClick([[maybe_unused]] Point pt, int widget, [[maybe_unused]] int click_count) override
+	void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
 	{
 		switch (GB(widget, 0, 16)) {
 			case WID_BROS_STATION_NE: