What causes my car to accelerate at a red light, stop sign, etc?

Ford 500 and Freestyle along with Mercury models are known for this urging. It is due to the throttle body being stuck. You need to get it cleaned every 20K miles. I had 280K on 500 and 200+ on Freestyle. When the car starts doing that I know it's been 15-20K miles! There is a recall on Ford.com or IIHS.gov sites where you can get instructions to get it repaired. Google online to check If your VIN is effected!