Timelapse Traffic Streak Effect

Does anyone now how to create the streaks in time-lapse footage
when shooting a stationary shot of traffic with the hvx 200?

I have tried in post speeding up the footage and applying different effects, but not really what I'm looking for.

Any help would be great!

Thanks

Shoot at 2fps with 350.0d shutter. Use the "Frame Rate Hack" to get to 2fps.

slow shutter

Thanks again for everyones help!

I just tried the framerate hack and it worked perfectly.

I was able to achieve the look I wanted with a simple sample shot this evening.... it looks awesome.... with a little compositing its going to look even better.

I'm impressed with the ability to create footage like this straight from the camera.