Wolverhampton City Council has set up a computer database for employees interested in sharing cars for commuting.
Deputy council leader Peter Bilson said he expects the scheme to reduce significantly the numbers of cars with one driver coming in to the city.
Coun Bilson, cabinet member for regeneration and enterprise, added: "As a council, we must practice what we preach and lead the way in cutting down commuter traffic.
"Quite a number of employees already share their cars. Through this new scheme, many more will choose to do so, cutting down their own travelling costs as well as easing traffic."
The council hopes the car share scheme will be extended to other major employers in Wolverhampton.
Staff can register by phone or through the council intranet.
Once registered, the system provides a list of possible car share matches based on home and work location and personal preferences – non-smokers for example.