[XXX] - I was on the way to work on a clear and sunny morning. After stopping at a traffic light, vehicles started moving forward through the intersection. Traffic was building and the lady in front of me stopped very quickly. When I pressed the the brake pedal to stop behind her nothing happened. The brakes did not brake! The pedal went all the way to the floor. It didn't even try to slow down. I just rolled right into the back of her. The front end of my 2014 Nissan LEAF sustained significant damage and the rear bumper of her SUV sustained minor damage. Both of us had minor neck/back pain after. I am still recovering from spine surgery and I'm concerned about any long term issues that may be caused from this accident. We were in a very busy area of Atlanta and it is amazing that no one was seriously hurt. After calling 911 and being on hold for close to 30 minutes State Farm advised it was okay to swap info without an official police report. I don't want this accident to count against my accident free/good driver discount with my insurance. There were no warning lights on my dash or audible brake sounds. I have had similar problems in the past with the brakes not engaging. It has been to the dealership at least 4 times for brake related issues in the 10 years that I have had this car. The dealership and 1 independent garage have inspected my brake system, including fluid, pads and rotors. Everything is in good condition. In the past there was a correlation between the 12V