--- a/rail_cmd.c	Sun Jul 17 18:48:05 2005 +0000
+++ b/rail_cmd.c	Sun Jul 17 18:48:45 2005 +0000
@@ -486,6 +486,10 @@
 			/* We remove the trackbit here. */
 			_m[tile].m5 &= ~trackbit;
 
+			/* Unreserve track for PBS */
+			if (PBSTileReserved(tile) & trackbit)
+				PBSClearTrack(tile, track);
+
 			if (GetTrackBits(tile)  == 0) {
 				/* The tile has no tracks left, it is no longer a rail tile */
 				DoClearSquare(tile);