Travelers' Information Stations
From Biocrawler, the free encyclopedia.
Travelers' Information Stations (TIS), sometimes also called highway advisory radio (HAR). These are licensed LPAM stations set up by local transport departments to provide bulletins to motorists and other travelers regarding traffic and other delays. These are often near highways and airports, and occasionally other tourism attractions such as national parks. Only governments may have licenses for TIS/HAR stations, and music is disallowed. The concept is not limited to the United States; TIS stations operate in Canada (on both AM and FM bands) and in France (at 107.7 MHz FM along selected Autoroutes), and possibly other countries as well.
- FCC's directory of TIS stations (http://www.fcc.gov/mb/audio/bickel/tis.html)
- Information on French Autoroutes-Info stations (http://www.autoroutes.fr/voyage/radios.php?lng=2) You can listen to streaming audio from these stations as well. (in French)
Trusted Information Systems (TIS) was a computer security research and development organization during the 1980's and 1990's, performing computer security research for organizations such as NSA, DARPA, ARL, AFRL, SPAWAR, and others. Early work included Trusted Xenix, the first commercially available B1 operating system, Trusted Mach, a research project that influenced DTOS and eventually SELinux, Domain and Type Enforcement (TE) which likewise infuenced SELinux, the Firewall Toolkit (the first open source firewall software), and a broad range of Internet Standards, including SMIME, SNMP, DNS, DNSSEC, and many others. TIS's operating system work directly affected BSD/OS, which the Gauntlet Firewall was based on, as well as Linux, FreeBSD, and others. Acquired by Network Associates, which later became PGP and McAfee, TIS's final resting place appears to be SPARTA, Inc.'s ISSO division, where what remains of TIS Advanced Research and Engineering landed. TIS's primary commercial product, the Gauntlet Firewall, was acquired from Network Associates by Secure Computing Corporation (SCC), and is being integrated into their next generation Sidewinder Firewall. Several curious twists of fate had TIS acquired by NAI during its attempt to acquire PGP, which was also acquired by NAI; similarly, SCC and TIS were fierce business competitors at various points.
