The idea is, to park your car and then bike or walk into work.
Spokeswoman Liz Bellas says so far about 100 people have applied for the pass.
"We have gotten a good response. We wanted to do what we could to help encourage alternative modes of transportation. It’s great for everybody. You’ll save gas money for one thing and you won’t be stuck in traffic and you’ll be getting the extra benefit of exercise."
It usually costs $5 to park at a county park.
She says they expect a lot of people to park in Discovery Park, which is closest to downtown.
You can fill out an application for a free “Survive I-5 Park and Ride” commuter pass by going to the Parks Department website.
There’s a link on the upper right hand corner of this page.