I have a 2020 Model Y with FSD at software version 2021.4.12. I used Navigate on Autopilot (NOA) to transition from a 55 MPH Interstate directly onto a 55 MPH Parkway via a one lane curved exit/entrance ramp marked at 25 MPH (although my experience is most people drive the connecting ramp at 35 MPH). Approaching the exit, at 55 MPH with NOA, an exit lane opens on the right and the car moves into the exit lane ✓, with right blinker on ✓. still doing 55 MPH. The car enters the exit ramp curve, not slowing down enough (in my opinion). It seemed to me that it was going to take the exit ramp at 55 MPH, much too fast for the ramp curve. I rapidly rotated the cruise speed wheel 3 times to manually reduce the crude speed to 40 MPH.
Perhaps if I waited one more second the car would have slowed to a reasonable speed but I could not take that chance, and had to act.
The map had the exit ramp curve accurately depicted. Once on the entrance lane of the parkway I had to manually increased the cruise speed.
I assume the NOA design is to slow to a safe speed on an exit ramp and not just maintain the highway speed on the ramp.
What is the experience of others?
Perhaps if I waited one more second the car would have slowed to a reasonable speed but I could not take that chance, and had to act.
The map had the exit ramp curve accurately depicted. Once on the entrance lane of the parkway I had to manually increased the cruise speed.
I assume the NOA design is to slow to a safe speed on an exit ramp and not just maintain the highway speed on the ramp.
What is the experience of others?