Accelerator Stuck problems of the 2006 Dodge Grand Caravan

I was driving home from work and my gas pedal was stuck. This has happened several times in the last month. April 10,11,& 25,2014; may 6, 12,& twice on 23,2014.

As I'm driving down the road the accelerator sticks, and I can't undo it. The van starts slowing down I have to pull to the side of the road to stop the vehicle, and to try and get the accelerator unstuck . This has happened multiple times. Sometimes the vehicle's engine shuts down on its own when this happens. Sometimes I have to stop the engine to get the accelerator to unstick. I have noticed that the majority of the time that this happens is when I'm driving in between 55 to 60 mph. It happens so frequently that I am scared to drive in multiple lane traffic in fear that it will stick when I'm in a middle lane and start slowing down and somebody hit me from behind or be stuck in the middle with no way out because it wont start. When the accelerator sticks the vehicle starts slowing down and I start to pull to the side of the road and start to try and stop it. If I don't pull to the side of the road the vehicle will stop in the middle of the road and possibly shut down. I have read other reports of the same thing happening with the same model. I feel that this should be addressed before someone gets seriously hurt or worse killed. Thanks.