There does seem to be some design fault with the configuration of the turnstiles along the Lyndhurst.
There are on paper 1 turnstile for each block of the horseshoe. But the way the turnstiles are used 8 of them only gives you access to the 5 blocks of the Devonport.
This means turnstiles 9 to 19 cover blocks 6 to 19. So 11 turnstiles when all open for 14 blocks.
Also as a consequence people in blocks 6 to 9 will naturally assume they should use the first turnstiles, number 9, so you have 4 blocks queuing at 1 turnstile.
There are on paper 1 turnstile for each block of the horseshoe. But the way the turnstiles are used 8 of them only gives you access to the 5 blocks of the Devonport.
This means turnstiles 9 to 19 cover blocks 6 to 19. So 11 turnstiles when all open for 14 blocks.
Also as a consequence people in blocks 6 to 9 will naturally assume they should use the first turnstiles, number 9, so you have 4 blocks queuing at 1 turnstile.