While this is true, it's pretty easy to infer from gps. If there's a 10 minute ETA and you just went over the proverbial train tracks into the bad side of town,

While this is true, it's pretty easy to infer from gps. If there's a 10 minute ETA and you just went over the proverbial train tracks into the bad side of town, or you're familiar with the surrounding towns, it's not difficult.