You can't design away all stupidity, but you can absolutely design away a lot of it. For starters, red lights are red lights. You should never be turning on a red light. Drivers who are used to turning right on red are more likely to do it even when it's not allowed.

Further to that, you can improve safety by:

• Keeping turn radii very low, so drivers have to slow down to take a sharp right angle turn, instead of smooth higher speed curves.
• Keep pedestrians safe by giving them a lead time: let them start crossing at intersections with lights a few seconds before cars are given a green light to start turning, so they are well into the intersection and clearly visible before drivers start
• Where major roads cross less major roads, use a wombat crossing: cars must drive up as though over a speed bump to the pedestrian's level, instead of pedestrians walking down onto road level, forcing drivers to slow down like when they go over a speed bump, while visually indicating that pedestrians clearly have priority
• Combine the above with having the crossing set back from the road a little so cars have completed their right angle turn and are looking straight ahead at pedestrians before they cross their path