Chances are you've gotten a speeding ticket before. But what if you knew the exact location where police were watching and waiting for speeders?

There's a new high-tech system designed by Penn State graduate, Joe Scott, that warns drivers about speed traps, school zones, dangerous curves and other potential hazards. The system is called PhantomAlert.com and it's a database filled with locations. For a monthly fee, subscribers download this information to a GPS, and the GPS then alerts drivers as they approach the area.

The system relies on drivers and spotters to log onto the Web site and enter locations of speed traps, school zones and other areas of interest. Scott then e-mails others who live in those areas to verify the information. Once it's confirmed, the information is entered into the data base, available for subscribers to download.

"The beauty of our system is that it's community based. It's drivers helping drivers," Scott said.

Scott said the system is not all about avoiding speeding tickets, but making drivers more alert and safer.

Ken Meyer lives in Westmoreland County and he uses Phantom Alert. He showed us how they system works. As we were driving down the highway, the GPS issued and audio and visual warning about a possible speed trap ahead.

"It says alert speed, cop cars, so it means that down hear someplace a cop would often times be,"said Meyer.

This time there was no officer, but Meyer says there have been. On a recent trip from Pittsburgh to Alabama, he said the device may have saved him a costly ticket.

"There were two occasions down where I definitely saw someone (police officers) there.

Some police officers believe the new system will serve as additional enforcement in areas such as school zones, but when it comes to speeding, some fear it may encourage drivers to break the law.

"We don't want them to say because I don't have an alert I will go as fast as I can. I just wish they realize that radar gun could by anywhere, that police officer could be anywhere, and you need to obey the speed limit," Pennsylvania State Trooper Robin Mungo said.

"Some people think it's just about trying to avoid tickets, to me it's a little more than just avoiding tickets, it just helps me be a little bit more cautious," said Meyer.

Scott said he has more than 100,000 locations highlighted on the system. The fees range from $10 to $100 for a lifetime membership.