That explains why the queue was moving slowly.
I was on one of the trains with eight carriages, but the fact that there were four carriage trains running too is ridiculous.
Left around 90' and found myself stuck in the queue for trains to Brighton for around 30-45 minutes.
Then once I had arrived in Brighton, found that there was only one train heading westwards (to Hove), would result in me waiting for 30 minutes, so took the bus instead - arrived back home at...