4 ms·
Simpler just to limit speed to the limit. Have the car do the policing for free. I just drove from LA to San Jose on I-5 (400 miles of mostly two lane freeway)
by dave333 2y ago
Simpler just to limit speed to the limit. Have the car do the policing for free. I just drove from LA to San Jose on I-5 (400 miles of mostly two lane freeway) using speed control set at the speed limit and it was very easy when everyone is going at that speed. Problems arise when there are slow trucks or people driving over the limit trying to pass any way they can. E.g. slow truck A passes even slower truck B and blocks the fast lane for speed limit traffic.
- m463 2y agoI suspect setting it at the exact speed limit leads to excessive passing of your car under good conditions, decreasing safety. In poor conditions, it might be too fast. It is much safer to go with the flow of traffic, which can vary due to lots of factors, but on a clear freeway will generally be slightly above the speed limit. I tried the telsa full self driving mode at the speed limit, and it leads to frustrated people behind you. There is also an AUTO setting that adjusts to the flow of traffic and it blends much better with traffic. EDIT: data on speed variance vs safety (fig 4): https://www.fhwa.dot.gov/publications/research/safety/17098/003.cfm https://www.fhwa.dot.gov/publications/research/safety/17098/...
- dave333 2y agoNot sure about optimal speed, but long term it makes sense to have technology police speeding and minimize accidents whatever that takes for free.