From 66784b4252f58d9bc8f0a782a6d22000a7eb68e0 Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Wed, 4 Sep 2024 21:07:12 +0100
Subject: [PATCH] Departures: Fix handling of lateness adjustment

---
 src/departures.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/departures.cpp b/src/departures.cpp
index cdbcbec7f8..9d00e3e0bf 100644
--- a/src/departures.cpp
+++ b/src/departures.cpp
@@ -721,7 +721,7 @@ DepartureList MakeDepartureList(StationID station, const std::vector<const Vehic
 					/* If the vehicle is expected to be late, we want to know what time it will arrive rather than depart. */
 					/* This is done because it looked silly to me to have a vehicle not be expected for another few days, yet it be at the same time pulling into the station. */
 					if (d->status != D_ARRIVED && d->lateness > 0) {
-						d->lateness -= least_order->order->GetWaitTime();
+						d->lateness = std::max<Ticks>(0, d->lateness - least_order->order->GetWaitTime());
 					}
 				}
 			}