I've also had drivers pass on my left while I'm signaling a left turn. Last year I was almost rear-ended by a car when I stopped to let oncoming traffic pass before turning left, despite the fact that I started signaling well before the turn and still had my left arm out while I waited.
I used to signal right turns with my left arm, like they taught in drivers' ed, but last year I decided to start signaling them with my right arm. Unfortunately I'm very unstable with my right hand off the handlebars. I've had to train myself to remain steady while holding the bar with my left hand only.
BTW with the advent of Capital Bikeshare in DC, there are many more cyclists in the city than there used to be. And so few of them signal turns. It drives me crazy. As a driver, there is a lot that you have to be scanning for on busy city streets, and forcing me to guess what cyclists are doing makes it that much harder for me to drive safely near them.
- Gray 2010 carbon WSD road bike, Rivet Independence saddle
- Red hardtail 26" aluminum mountain bike, Bontrager Evoke WSD saddle
- Royal blue 2018 aluminum gravel bike, Rivet Pearl saddle
Gone but not forgotten:
- Silver 2003 aluminum road bike
- Two awesome worn out Juliana saddles