The entrance of authorized personnel is allocated automatically by
an entrance control system. Waist height turnstile is a system that allows the
entry of a single person at a time, that enables the security personnel to control
the access of personnel to the facility. Road blockers available in three and
four meter sizes are installed in areas where the entry of unauthorized
vehicles is prohibited. These are demanded for use in high security premises. Another
entrance control system that is applied to prevent the entry or exit of hostile
vehicles is tyre killer of 4 metres size.