I've wondered if driver's knew that, 'using a turn signal is a traffic code'. Not doing so can cause a police officer
to stop the vehicle and give a citation. I've seen it happen on 518.
Personally I like to let other drivers know where I'm going if turning.
Another piece of info. that I learned in Pearland's Citizens Police Academy -
PPD said the most recorded vehicle accidents are in the 'center turn lanes' caused by drivers entering the lane too soon.
I travel 518 and see this happen often. Stay safe!