"For those who don't know about it yet, ISA drawing a lot of attention around the country, and is already well-used in other nations. It's a low-cost, after-market technology that uses GPS-linked speed limit data and/or cameras to recognize posted limits. There are two kinds of ISA: a passive form that alerts you when driving above the speed limit, and an active form that limits the ability to exceed a set speed."
"When I settled into the driver's seat that sunny North Carolina day, the interface of the active ISA device felt intuitive. There was a screen displaying the posted speed limit, and a smaller number below that the buffer, or speed tolerance which set how far above the posted limit the car would allow me to go. (In my case, this number was set to zero.) There was also a red override button, which would allow me to temporarily bypass the speed limit,"
Intelligent Speed Assistance (ISA) uses GPS-linked speed limit data and cameras to recognize posted limits and can be installed as a low-cost, after-market technology. Two forms exist: passive ISA that alerts drivers when exceeding limits, and active ISA that limits the ability to exceed a set speed. Active devices display the posted limit and a buffer or speed tolerance and may include an override button unless legally disabled. ISA has been widely used in other nations, is gaining attention in U.S. states and localities, and offers a proven, commonsense strategy to curb dangerous speeding and save lives.
Read at usa.streetsblog.org
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