PA
Public Address System
PIDS
Passenger Information Display Screen
PMR
Private Mobile Radio
PSVAR
Public Service Vehicle Accessibility Regulations 2000
PTI
Public Transport Information
PTI
PTI Profile - This is a specific profile of the TransXChange schema for timetable data.
PTIC
Passenger Transport Information Coordination
PTV
Public Transport Vehicle
PTZ
pan, tilt and zoom
usually used with reference to CCTV cameras.