Yeah, this path is not safe for touring bikes. The south bound route has been changed to go to the next exit to the east, which seems much more practical for touring bikes.

The north bound route has been changed to go through the tunnel. That seems safer than crossing multiple lanes of high speed highway traffic. That path is marked as requiring that bikes be dismounted. I don't see a safer alternative for bikes crossing this highway.

If you do know of a safer route, please state where it is so that the route can be changed to the safer route.