Submitted by Kary993 on Thu, 2019-08-15 13:12
We have many round abouts in our area here in San Diego. Until recently I had never tried AP on the street nor approaching a round about until yesterday. The road was in La Jolla and is a two lane road with one lane going in each direction. The round abouts are also one lane but fairly small in overall diameter so when entering you tend to turn right then straighten out and left and then right to get through the round about. Of course paying attention entering the round about which is a four way yield in this case is important as AP does not see other cars in other entry positions or a car in the round about coming around, at least very well. This certainly will be a challenge for Tesla to have the neural net master these road conditions.
So I was in AP and approaching the round about with some car in front of me. The car ahead of course slowed and then proceeded as in this case there were no other cars entering from the three other entry points. So it because my cars turn and the AP slowed smoothly almost stopped and the turned the wheel right as you could see it recognized the center curb as the road edge on the left now. Once it did it proceeded to accelerate straight and I could see that it did not see the right side of the round about curb where there was another entry point. Since the round about is fairly small in diameter and AP started accelerating I waited a long as I could but ultimately I had to forcible take control because I was heed for the curb and accelerating still going straight. Perhaps I could have waited a bit longer to see if it would have corrected but I chickened out.
One factor that might contribute to this happening is that the curbs in the round about do not have any lines whatsoever. The diameter is small and curbs broken up due to the other entry points. Though in other straight road situations where there is a line in the center and an unmarked curb on the right the display shows the boundary line for the curb so it does recognize curbs as lines as it were.
Anyone else ever try a round about on AP and have this experience?