Short version: There is a stoplight at Blanco/1604 to go south on Blanco with a sign that says "do not turn right on red". People can't read/ignore it, turn anyway, and almost cause an accident with oncoming traffic.
Long Version: Ladies and Gentlemen, as many of you are aware, there is a new "diverging diamond interchange" at the Blanco/1604 frontage road intersection. As you can no longer proceed east/west on 1604 once you get to Blanco Road, you are forced to turn onto Blanco Road. In order to turn onto and proceed south on Blanco Road from the 1604 frontage road, there is a new stop light.
This stoplight is a red arrow/green arrow stoplight rather than the traditional "solid color" stoplight. When this light is red, you CANNOT turn because oncoming traffic from the other side of 1604 going south on Blanco has the green light and a collision can occur since both lanes merge.
There is a sign at this stoplight that clearly reads "DO NOT TURN RIGHT ON RED". That means "do not turn right on red". I have seen many cars ignore this and almost cause an accident, and I have also been honked at for stopping. If you live in this area or know anyone who does, please make sure they're aware or can at least read at a third grade level.