diff --git a/src/saveload/bridge_signal_sl.cpp b/src/saveload/bridge_signal_sl.cpp
index 596194d2f3..4c73478527 100644
--- a/src/saveload/bridge_signal_sl.cpp
+++ b/src/saveload/bridge_signal_sl.cpp
@@ -30,7 +30,7 @@ static void Load_XBSS()
 		LongBridgeSignalStorage &lbss = _long_bridge_signal_sim_map[index];
 		SlObject(&stub, _long_bridge_signal_storage_stub_desc);
 		lbss.signal_red_bits.resize(stub.length);
-		SlArray(&(lbss.signal_red_bits[0]), stub.length, SLE_UINT64);
+		SlArray(lbss.signal_red_bits.data(), stub.length, SLE_UINT64);
 	}
 }
 
@@ -39,7 +39,7 @@ static void RealSave_XBSS(const LongBridgeSignalStorage *lbss)
 	LongBridgeSignalStorageStub stub;
 	stub.length = (uint32)lbss->signal_red_bits.size();
 	SlObject(&stub, _long_bridge_signal_storage_stub_desc);
-	SlArray(const_cast<uint64*>(&(lbss->signal_red_bits[0])), stub.length, SLE_UINT64);
+	SlArray(const_cast<uint64*>(lbss->signal_red_bits.data()), stub.length, SLE_UINT64);
 }
 
 static void Save_XBSS()
diff --git a/src/saveload/plans_sl.cpp b/src/saveload/plans_sl.cpp
index a7e33d90fb..94c2e80b8d 100644
--- a/src/saveload/plans_sl.cpp
+++ b/src/saveload/plans_sl.cpp
@@ -32,7 +32,7 @@ static void RealSave_PLAN(Plan *p)
 	for (size_t i = 0; i < p->lines.size(); i++) {
 		PlanLine *pl = p->lines[i];
 		SlWriteUint32((uint32)pl->tiles.size());
-		SlArray(&pl->tiles[0], pl->tiles.size(), SLE_UINT32);
+		SlArray(pl->tiles.data(), pl->tiles.size(), SLE_UINT32);
 	}
 }
 
@@ -60,7 +60,7 @@ static void Load_PLAN()
 				p->lines[i] = pl;
 				const size_t tile_count = SlReadUint32();
 				pl->tiles.resize(tile_count);
-				SlArray(&pl->tiles[0], tile_count, SLE_UINT32);
+				SlArray(pl->tiles.data(), tile_count, SLE_UINT32);
 				pl->UpdateVisualExtents();
 			}
 			p->SetVisibility(false);
@@ -80,7 +80,7 @@ static void Load_PLANLINE()
 		p->lines[line_index] = pl;
 		size_t plsz = SlGetFieldLength() / sizeof(TileIndex);
 		pl->tiles.resize(plsz);
-		SlArray(&pl->tiles[0], plsz, SLE_UINT32);
+		SlArray(pl->tiles.data(), plsz, SLE_UINT32);
 		pl->UpdateVisualExtents();
 	}
 
diff --git a/src/saveload/tracerestrict_sl.cpp b/src/saveload/tracerestrict_sl.cpp
index e8fcaee444..53f9eb23f2 100644
--- a/src/saveload/tracerestrict_sl.cpp
+++ b/src/saveload/tracerestrict_sl.cpp
@@ -64,7 +64,7 @@ static void Load_TRRP()
 		TraceRestrictProgram *prog = new (index) TraceRestrictProgram();
 		SlObject(&stub, _trace_restrict_program_stub_desc);
 		prog->items.resize(stub.length);
-		SlArray(&(prog->items[0]), stub.length, SLE_UINT32);
+		if (stub.length > 0) SlArray(prog->items.data(), stub.length, SLE_UINT32);
 		if (SlXvIsFeaturePresent(XSLFI_JOKERPP)) {
 			for (size_t i = 0; i < prog->items.size(); i++) {
 				TraceRestrictItem &item = prog->items[i]; // note this is a reference,
@@ -99,7 +99,7 @@ static void RealSave_TRRP(TraceRestrictProgram *prog)
 	TraceRestrictProgramStub stub;
 	stub.length = (uint32)prog->items.size();
 	SlObject(&stub, _trace_restrict_program_stub_desc);
-	SlArray(&(prog->items[0]), stub.length, SLE_UINT32);
+	SlArray(prog->items.data(), stub.length, SLE_UINT32);
 }
 
 /**
@@ -142,7 +142,7 @@ static void Load_TRRS()
 		SlObject(slot, _trace_restrict_slot_desc);
 		SlObject(&stub, _trace_restrict_slot_stub_desc);
 		slot->occupants.resize(stub.length);
-		if (stub.length) SlArray(&(slot->occupants[0]), stub.length, SLE_UINT32);
+		if (stub.length) SlArray(slot->occupants.data(), stub.length, SLE_UINT32);
 	}
 	TraceRestrictSlot::RebuildVehicleIndex();
 }
@@ -156,7 +156,7 @@ static void RealSave_TRRS(TraceRestrictSlot *slot)
 	TraceRestrictSlotStub stub;
 	stub.length = (uint32)slot->occupants.size();
 	SlObject(&stub, _trace_restrict_slot_stub_desc);
-	if (stub.length) SlArray(&(slot->occupants[0]), stub.length, SLE_UINT32);
+	if (stub.length) SlArray(slot->occupants.data(), stub.length, SLE_UINT32);
 }
 
 /**