Category Archives: environment

“ISA systems have been around for several decades. Using GPS devices with speed limit maps, onboard sensors or cameras that “read” signs or both, they can identify the speed limit in the vehicle’s location and detect when the driver exceeds it, but they vary in their response. Unlike the unit I used, which worked by restricting the engine’s output, some systems only provide an audible or visual warning or make the accelerator harder to press. As of July 1, new vehicles sold in Europe are required to have ISA that at least provides a warning, and the California legislature is currently considering a similar mandate for vehicles sold in the state.

“Even without a legal requirement, ISA systems of various types are starting to appear as options on new vehicles in the U.S., and companies such as MAGTEC and Sturdy sell aftermarket ISA systems, primarily targeting fleet operators. Navigation apps also include speed warnings if the user chooses. Continue reading →