Is there a way to avoid the effects of turbulence?
There are currently no production anti-turbulence devices or control systems that I know of. It should however be noted that auto-pilot (to an extent) will hold a course in turbulence within a margin but will or may constantly be auto-correcting.  However there is some research going on at RMIT into the matter and it looks like they have at least a small working prototype. The issue you have in the matter is positive control, to avoid turbulence and/or be ready to correct for it before it happens you need to be able to see it/predict it ahead of time. There is some more research going into Laser based Radar systems for detecting clear air turbulence but as far as I know nothing has made it to market. So yes it may be/is almost possible but the systems are still in research and development at best.