The invention provides an apparatus and method for automatic monitoring and control of the ingress and egress of vehicles to and from a secure facility and various areas within the facility. A plurality of cameras, such as infrared-sensitive cameras, captures images of the license plates and/or optically readable passive tags of vehicles traveling into and within the site. The system will also be upgradeable to interface with Electronic Vehicle Identification (EVI) Systems once all vehicles emit such information. Alternatively, the system can be configured to work with RF tags providing ALL vehicles entering the site are issued with such devices and the appropriate sensing technology is installed as part of the site infrastructure. One of the advantages of the system outlined in this application is the use of the vehicle license plate or low cost passive optically readable tag as a unique vehicle identifier.The system also provides a historical database of license plate information not yet available by any other technological means. A video image processing system, such as a software engine running on a computer processor, detects and extracts a vehicle license plate number (LPN), optically readable passive tag or other such identifying characters, within the captured image of the license plate. Based at least in part on the location of the camera that captured the LPN, the processor stores the LPN with a time-stamp in one or more databases, such as a site LPN database, an in-transit "temporary" LPN database, an employee database, an expected visitor database, a "blacklist" database, a loiterer database, a speeder database, a high-security database, a high-security parking lot database, a normal security parking lot database, and a visitor parking lot database or similar such databases as mandated by the facility. Also, depending at least in part on the location of the camera that captured the LPN and whether the vehicle's LPN is listed in one or more of the above-listed databases, the processor controls the actuation of various barriers or such like devices to allow ingress to and egress from various locations defined throughout the site. The processor also preferably controls information posted on various terminals in the site, such as a Security Portal terminal and a parking lot pay booth terminal and on variable messaging signs at various locations within the site.