diff --git a/source/games/duke/src/actors_r.cpp b/source/games/duke/src/actors_r.cpp
index 57b5f7386..04b1a0414 100644
--- a/source/games/duke/src/actors_r.cpp
+++ b/source/games/duke/src/actors_r.cpp
@@ -744,14 +744,14 @@ void movetransports_r(void)
 
 					if (isRRRA())
 					{
-						if (onfloorz && sectlotag == 160 && ps[p].GetActor()->getOffsetZ() > sectp->floorz - 48)
+						if (onfloorz && sectlotag == ST_160_FLOOR_TELEPORT && ps[p].GetActor()->getOffsetZ() > sectp->floorz - 48)
 						{
 							k = 2;
 							ps[p].GetActor()->spr.pos.Z = Owner->sector()->ceilingz + 7 + gs.playerheight;
 							ps[p].GetActor()->backupz();
 						}
 
-						if (onfloorz && sectlotag == 161 && ps[p].GetActor()->getOffsetZ() < sectp->ceilingz + 6)
+						if (onfloorz && sectlotag == ST_161_CEILING_TELEPORT && ps[p].GetActor()->getOffsetZ() < sectp->ceilingz + 6)
 						{
 							k = 2;
 							if (ps[p].GetActor()->spr.extra <= 0) break;
@@ -843,22 +843,22 @@ void movetransports_r(void)
 
 					if (isRRRA())
 					{
-						if (ll && sectlotag == 161 && act2->spr.pos.Z < (sectp->ceilingz + ll) && warpdir == 1)
+						if (ll && sectlotag == ST_161_CEILING_TELEPORT && act2->spr.pos.Z < (sectp->ceilingz + ll) && warpdir == 1)
 						{
 							warpspriteto = 1;
 							ll2 = ll - abs(act2->spr.pos.Z - sectp->ceilingz);
 						}
-						else if (sectlotag == 161 && act2->spr.pos.Z < (sectp->ceilingz + 3.90625) && warpdir == 1)
+						else if (sectlotag == ST_161_CEILING_TELEPORT && act2->spr.pos.Z < (sectp->ceilingz + 3.90625) && warpdir == 1)
 						{
 							warpspriteto = 1;
 							ll2 = zmaptoworld;
 						}
-						if (ll && sectlotag == 160 && act2->spr.pos.Z > (sectp->floorz - ll) && warpdir == 2)
+						if (ll && sectlotag == ST_160_FLOOR_TELEPORT && act2->spr.pos.Z > (sectp->floorz - ll) && warpdir == 2)
 						{
 							warpspriteto = 1;
 							ll2 = ll - abs(sectp->floorz - act2->spr.pos.Z);
 						}
-						else if (sectlotag == 160 && act2->spr.pos.Z > (sectp->floorz - 3.90625) && warpdir == 2)
+						else if (sectlotag == ST_160_FLOOR_TELEPORT && act2->spr.pos.Z > (sectp->floorz - 3.90625) && warpdir == 2)
 						{
 							warpspriteto = 1;
 							ll2 = zmaptoworld;
@@ -888,7 +888,7 @@ void movetransports_r(void)
 							}
 							[[fallthrough]];
 						default:
-							if (act2->spr.statnum == 5 && !(sectlotag == ST_1_ABOVE_WATER || sectlotag == ST_2_UNDERWATER || (isRRRA() && (sectlotag == 160 || sectlotag == 161))))
+							if (act2->spr.statnum == 5 && !(sectlotag == ST_1_ABOVE_WATER || sectlotag == ST_2_UNDERWATER || (isRRRA() && (sectlotag == ST_160_FLOOR_TELEPORT || sectlotag == ST_161_CEILING_TELEPORT))))
 								break;
 							[[fallthrough]];
 
@@ -1293,7 +1293,7 @@ static void heavyhbomb(DDukeActor *actor)
 
 	makeitfall(actor);
 
-	if (sectp->lotag != 1 && (!isRRRA() || sectp->lotag != 160) && actor->spr.pos.Z >= actor->floorz - FOURSLEIGHT_F && actor->spr.yint < 3)
+	if (sectp->lotag != 1 && (!isRRRA() || sectp->lotag != ST_160_FLOOR_TELEPORT) && actor->spr.pos.Z >= actor->floorz - FOURSLEIGHT_F && actor->spr.yint < 3)
 	{
 		if (actor->spr.yint > 0 || (actor->spr.yint == 0 && actor->floorz == sectp->floorz))
 		{
@@ -1649,7 +1649,7 @@ void moveactors_r(void)
 				break;
 
 			case POWDERKEG:
-				if (!isRRRA() || (sectp->lotag != 1 && sectp->lotag != 160))
+				if (!isRRRA() || (sectp->lotag != ST_1_ABOVE_WATER && sectp->lotag != ST_160_FLOOR_TELEPORT))
 					if (act->vel.X != 0)
 					{
 						movesprite_ex(act, DVector3(act->spr.Angles.Yaw.ToVector()* act->vel.X, act->vel.Z), CLIPMASK0, coll);
diff --git a/source/games/duke/src/animatesprites_r.cpp b/source/games/duke/src/animatesprites_r.cpp
index 62c50469b..eb7326636 100644
--- a/source/games/duke/src/animatesprites_r.cpp
+++ b/source/games/duke/src/animatesprites_r.cpp
@@ -533,7 +533,7 @@ void animatesprites_r(tspriteArray& tsprites, const DVector2& viewVec, DAngle vi
 					{
 						double floorz;
 
-						if (isRRRA() && sectp->lotag == 160) continue;
+						if (isRRRA() && sectp->lotag == ST_160_FLOOR_TELEPORT) continue;
 						if ((sectp->lotag & 0xff) > 2 || h->spr.statnum == 4 || h->spr.statnum == 5 || h->spr.picnum == DRONE)
 							floorz = sectp->floorz;
 						else
diff --git a/source/games/duke/src/constants.h b/source/games/duke/src/constants.h
index 3c80bb7e0..83d4b667c 100644
--- a/source/games/duke/src/constants.h
+++ b/source/games/duke/src/constants.h
@@ -134,6 +134,9 @@ enum
 
 	ST_41_JAILDOOR			= 41,
 	ST_42_MINECART			= 42,
+
+	ST_160_FLOOR_TELEPORT	= 160,
+	ST_161_CEILING_TELEPORT = 161,
 	// left: ST 32767, 65534, 65535
 };
 
diff --git a/source/games/duke/src/player_r.cpp b/source/games/duke/src/player_r.cpp
index 0a46afdc9..ee16ec253 100644
--- a/source/games/duke/src/player_r.cpp
+++ b/source/games/duke/src/player_r.cpp
@@ -105,7 +105,7 @@ static void shootmelee(DDukeActor *actor, int p, DVector3 pos, DAngle ang, int a
 
 	hitscan(pos, sectp, DVector3(ang.ToVector() * vel, zvel * 64), hit, CLIPMASK1);
 
-	if (isRRRA() && hit.hitSector != nullptr && ((hit.hitSector->lotag == 160 && zvel > 0) || (hit.hitSector->lotag == 161 && zvel < 0))
+	if (isRRRA() && hit.hitSector != nullptr && ((hit.hitSector->lotag == ST_160_FLOOR_TELEPORT && zvel > 0) || (hit.hitSector->lotag == ST_161_CEILING_TELEPORT && zvel < 0))
 		&& hit.actor() == nullptr && hit.hitWall == nullptr)
 	{
 		DukeStatIterator its(STAT_EFFECTOR);
@@ -116,7 +116,7 @@ static void shootmelee(DDukeActor *actor, int p, DVector3 pos, DAngle ang, int a
 			{
 				DVector3 npos;
 				npos.XY() = hit.hitpos.XY() + (effector->GetOwner()->spr.pos.XY() - effector->spr.pos.XY());
-				if (hit.hitSector->lotag == 161)
+				if (hit.hitSector->lotag == ST_161_CEILING_TELEPORT)
 				{
 					npos.Z = effector->GetOwner()->sector()->floorz;
 				}
@@ -253,7 +253,7 @@ static void shootweapon(DDukeActor* actor, int p, DVector3 pos, DAngle ang, int
 	actor->spr.cstat &= ~CSTAT_SPRITE_BLOCK_ALL;
 	hitscan(pos, sectp, DVector3(ang.ToVector() * vel, zvel * 64), hit, CLIPMASK1);
 
-	if (isRRRA() && hit.hitSector != nullptr && (((hit.hitSector->lotag == 160 && zvel > 0) || (hit.hitSector->lotag == 161 && zvel < 0))
+	if (isRRRA() && hit.hitSector != nullptr && (((hit.hitSector->lotag == ST_160_FLOOR_TELEPORT && zvel > 0) || (hit.hitSector->lotag == ST_161_CEILING_TELEPORT && zvel < 0))
 		&& hit.actor() == nullptr && hit.hitWall == nullptr))
 	{
 		DukeStatIterator its(STAT_EFFECTOR);
@@ -264,7 +264,7 @@ static void shootweapon(DDukeActor* actor, int p, DVector3 pos, DAngle ang, int
 			{
 				DVector3 npos;
 				npos.XY() = hit.hitpos.XY() + (Owner->spr.pos.XY() - effector->spr.pos.XY());
-				if (hit.hitSector->lotag == 161)
+				if (hit.hitSector->lotag == ST_161_CEILING_TELEPORT)
 				{
 					npos.Z = Owner->sector()->floorz;
 				}
diff --git a/source/games/duke/src/spawn.cpp b/source/games/duke/src/spawn.cpp
index 720cf5843..a30259eff 100644
--- a/source/games/duke/src/spawn.cpp
+++ b/source/games/duke/src/spawn.cpp
@@ -886,7 +886,7 @@ void spawneffector(DDukeActor* actor, TArray<DDukeActor*>* actors)
 				{
 					if (wal.twoSided() &&
 						wal.nextSector()->hitag == 0 &&
-						(wal.nextSector()->lotag < 3 || (isRRRA() && wal.nextSector()->lotag == 160)))
+						(wal.nextSector()->lotag < 3 || (isRRRA() && wal.nextSector()->lotag == ST_160_FLOOR_TELEPORT)))
 					{
 						s = wal.nextSector();
 						break;