Walking and bicycling are the fundamental modes of transportation. Streets that are designed to be safe and convenient for riding bikes also happen to be very safe streets. Problem: not enough bicycling infrastructure. Solution: more bicycling infrastructure. Professional engineers have loads of manuals, design guides, and real-world case studies to learn from. So what's the industry waiting for? Many professionals don't realize just how deadly modern engineering actually is. And professionals that do understand generally don't want to stand out. This is my encouragement for engineers to make a ruckus. Design streets for people. Save the world with a healthy does of bicycle urbanism.