HOW IT WORKS Upon arrival: At the entry barrier, your number plate will be read and you'll receive a ticket automatically. If no ticket is issued, please press for assistance. Please keep your ticket safe as you'll need this on exit. On your return: At the exit barrier, please insert your ticket so your booking can be validated, and the barrier raised. If you have overstayed your booking, your additional charge will be displayed, which you'll need to pay. If the barrier does not rise, please press for assistance.