Q: Too often I see drivers give maybe one blink of their turn signal before turning. That can't be enough to meet the requirements of the law, right? How far in advance of an intersection or lane ...

Traffic management in dense urban areas is an extremely complex problem with a host of conflicting goals and challenges. One of the most fundamental of those challenges happens at an intersection, ...

Q: Are turn signals required in parking lots? A: Yes, absolutely. I mean, they’re not required by law, but they are a requirement for human decency. It’s like golf. Now, I’m no expert on golf. If you ...