GPS-based local traffic situation viewer: Given the GPS satellites and mapping satellites we have today, if we can have satellites dedicated to specific areas, we can have them prepare dynamic maps of the traffic situation: 1. periodically, 2. On demand. I am driving my car fitted with a GPS-local traffic situation viewer (LTSV). I got into a jam, and want to know the situation ahead and behind (can I go on the wrong side , take a turn here, take a right in the next road etc.), I just...