Make intersections safer by removing stoplights:
Cars were moving too fast through an intersection in the town of Poynton in England, so they took out the stoplights & walk signals and replaced the intersection with an unusual double roundel design. The result is a mixed-use space with slower moving car traffic and safer pedestrian traffic.
[Been talking about this for years. Once pointed out, this seemingly counter intuitive move works every time. I apply the same thinking to many situations. Rules that run counter to desire fail. In this case, they did a brilliant job.]