Unironically, this is the best solution. Make it more annoying to not use the signal than to use it. Shake the wheel, sound an alarm, nudge back into the lane. Make using turn signals the selfish option. Lots of cars already do this to some small extent.
Lets not make it unsafe for other people.
Just add a really loud horn every time they forget their turn signal.
Unironically, this is the best solution. Make it more annoying to not use the signal than to use it. Shake the wheel, sound an alarm, nudge back into the lane. Make using turn signals the selfish option. Lots of cars already do this to some small extent.