Question: I’m writing to you to ask a question regarding whether or not you might know where the signal that I can only assume is the method to tell current “smarter” cars what the speed limit is on the road or highway they are currently driving. I wonder how accurate they really are.
Answer: My advice is to not solely rely on the displayed GPS speed reading for your vehicle’s actual speed. Your vehicle’s speedometer is the best way to determine how fast you are traveling.
A GPS is a positional speedometer. It will show your speed based on the average distance covered off of several readings over the last few seconds and are generally accurate under normal driving conditions. The speed readings could be inaccurate if there is a temporary loss of signal.
Avoid distractions and always set your destination on your navigation system prior to driving and remember the new hands free law that is currently being enforced in Minnesota.
The new law allows a driver to use their cell phone to make calls, text, listen to music or podcasts and get directions, but only by voice commands or single touch activation without holding the phone.
If you have any questions concerning traffic related laws or issues in Minnesota, send your questions to Sgt. Neil Dickenson, Minnesota State Patrol, 1131 Mesaba Ave., Duluth, MN 55811. (You can follow me on Twitter @MSPPIO_NE or reach me at neil.dicken