From 8646506127ac6b5848d95147205357bd49b3d8d0 Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Tue, 30 Mar 2021 22:53:45 +0100
Subject: [PATCH] Prevent lookahead init for wrong way movement on signalled
 tunnel/bridge

---
 src/pbs.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/pbs.cpp b/src/pbs.cpp
index 44123c6105..ccd79b2f81 100644
--- a/src/pbs.cpp
+++ b/src/pbs.cpp
@@ -816,6 +816,7 @@ static int ScanTrainPositionForLookAheadStation(Train *t, TileIndex start_tile)
 
 void TryCreateLookAheadForTrainInTunnelBridge(Train *t)
 {
+	if (IsTunnelBridgeSignalSimulationExitOnly(t->tile)) return;
 	DiagDirection tb_dir = GetTunnelBridgeDirection(t->tile);
 	if (DirToDiagDirAlongAxis(t->direction, DiagDirToAxis(tb_dir)) == tb_dir) {
 		/* going in the right direction, allocate a new lookahead */