This page contains a Flash digital edition of a book.
Control Airport Access Without Eliminating It

By Craig Wilson

As a symbol of modernity and the Global Society, the airport stands as one of the greatest testaments

to man’s ability to capitalize on his powers of imagination and cooperation to command the world in which he lives. And while jet travel, and the gateway to the world it pro- vides, is certainly a marvel, an airport represents another marvel as well: one of controlled access. Airport properties are divided into a multitude of

restricted-access areas. Airside and landside is one basic divide, but beyond that, subdivisions permeate the facili- ty. Access status and needs vary greatly, ranging from flight crews and baggage and maintenance crews, to secu- rity staff and taxi and shuttle operators, from ticketed pas- sengers to in-terminal food service and retail employees, from delivery drivers to flight controllers ... the list goes on and on.

Compounding it all is the pressure of rigorous sched-

uling and the ever-impending “costs of delay” reality rein- forcing the need to move through the airport facility effi- ciently and securely to conduct jobs and reach destinations in a timely manner.

Controlling Access without Eliminating It For centuries, hardened doors and gates, controlled

by locks, have been used as barriers to partition access- controlled areas. And for nearly as long, access was obtained by the possession and use of a mechanical key. While effective, as facilities grew in size and complexity, these systems grew expensive to maintain as retooling was required as keys were dispersed and lost or stolen. With the arrival of code-based, electronic access control,

transmitted via keypads or short-range RFID technology, an access code created uniquely for an individual could be generat-

The RFID tag in the car’s window, and the reader on the pole outside. A quick note on how these technologies differ. Generally, lower-

energy UHF holds the advantages of lower-cost readers and the capability to work with battery-less, passive tags. The microwave bands possess longer ranges and are less susceptible to interference but generally cost more. So while the proximity card reader has become

Both effectively solve the range problem, and each has distinct advantages.

ed and activated and, if the need arose, simply deactivated. Access became more secure and more affordable to maintain, so much so that it revolutionized the door-locking world. Soon after, long-range RFID technology was developed to

extend the reach of access technology. Robust and effective, these technologies have often been employed inAVI (automatic vehicle identification) access systems to manage vehicle access to park- ing or secure perimeter facilities, and improving throughput and security. But to get long-range reach, higher energy frequencies are

required, putting these technologies into the ultra-high- frequency (UHF) and microwave ranges. Both effectively solve the range problem, and each has distinct advantages.


ubiquitous, and AVI is ever gaining popularity, there has remained a divide between long-range and short- range access control in terms of credentials. Though based on similar technologies, they are

different enough that interchangeable credentials were never developed. This sometimes caused facili- ties to forego the benefit gain of long-range access

control because the proposition of additional or tied-to-vehicle credentials seemed cumbersome and tipped the costs of imple- mentation to outweigh the benefits. That is, until recently.

One Card,Many Kinds of Access Now, a new trend in card-based access is emerging with the

advent of multiple technology cards that allow for building and parking/vehicle access, and even purse-enabled smart cards (for access to money), to be merged into a single credential. Because UHF possesses the passive tag capability, cards are being developed combining UHF with HID Prox, MIFARE, DES-

Continued on Page 20 Parking Today

Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56