--- a/train_cmd.c	Sun Dec 31 16:08:00 2006 +0000
+++ b/train_cmd.c	Sun Dec 31 18:03:21 2006 +0000
@@ -3093,7 +3093,7 @@
 						InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, STATUS_BAR);
 					}
 				}
-			} else {
+			} else new_tile:{
 				/* A new tile is about to be entered. */
 
 				byte bits;
@@ -3209,7 +3209,14 @@
 			SetSpeedLimitOnBridge(v);
 
 			if ((IsTunnelTile(gp.new_tile) || IsBridgeTile(gp.new_tile)) && ((VehicleEnterTile(v, gp.new_tile, gp.x, gp.y) & 0x4) != 0)) {
-				/* vehicle just left the bridge/tunnel wormhole and entered ramp/exit from inside */
+				if (IsBridgeTile(gp.new_tile)) {
+					/* when on a bridge, v->tile points to one of the bridge heads. GetNewVehicleDirection will
+					 * fail, because it expects the new and old tile (gp.{new|old}tile) to be adjacent to each
+					 * other. So we set the old_tile here manually by using the current vehicle coordinates */
+					gp.old_tile = TileVirtXY(v->x_pos, v->y_pos);
+					goto new_tile; /* We need the same code when entering from a bridge than from any other tile */
+				}
+
 			} else {
 				/* vehicle stays in the bridge/tunnel wormhole */
 				v->x_pos = gp.x;