A new road was recently constructed in South Fremont. Kato Rd was extended to connect with Mission Blvd. It provides a direct route between the the Warm Springs commercial district with various office parks along I880.
But as you can see, non-motorized users are not permitted to use it:
This road was actually built as part of the Warm Springs BART extension project. There are some alternate routes available, but they are less safe and (depending on where you are coming and going) more circuitous.