sentences:  When subscribed, a barcode is affixed to the vehicle, which is scanned by CCTV cameras automatically to check for a valid subscription.The Turkish toll system cannot be avoided (except for avoiding toll roads), because due to the cameras, all vehicles without OGS or HGS registrations, or with missing or invalid chips is issued with a fine to the registered postal home address.In the 18th century and 19th century most main roads in Great Britain were managed as toll roads, by turnpike trusts, but these were gradually abolished in the 1860s and 1870s.