passimeter

A pocket pedometer.

A turnstile operated from a ticket booth or by a ticket machine.

Passengers were meant to flow past a passimeter on either side, as when the water of a fast-flowing river meets a rock. They usually had the choice of two queues, which must have been agonising because the one you pick is always the slowest. The queues were slowed down by the turnstiles that frequently operated in conjunction with the ticket booths, but these would give way to automatic ticket gates, [...]