Fixed gear does NOT mean 'track bike'. A track bike is one designed to be raced on a velodrome. However, you can use fixed gear bikes on the road and if you're willing to work within the limitations of a track bike, you can use a track bike on the road. However, there are more useful bikes for use on the road and many of these have track like geometry if that's what you want.
Just sayin' in case you're confused (as many are) about the terminology and what it means in the real world.