StopWatcher: A Mobile Application to Improve Stop Sign Awareness for Driving Safety

Figure 3

Symbols that StopWatcher places in Google Maps denote the directions that are required to stop at an intersection. The white dots indicate the rough directions that the stop signs are facing. For example, symbol 6 represents an all-way stop, while symbol 5 represents a North and South only stop at a 3- or 4-way intersection.