Suggest the two spurs on right be split. Then put industries to be switched on both sides of both spurs. There's also plenty of room to put single spurs for more switching. Layout would then need a siding/run around track to makr up trains for switching.Recommend this layout be completely walk around as any operator would have to be 10' tall to reach across 4'. LOL If one side has to be against a wall make it the 4' side.