A carpool consists of 2-6 individuals sharing a ride for the majority of the trip. Carpooling is the most the commonly used commute alternative in Silicon Valley with 15% of commuters carpooling to work. Many carpoolers carpool on a part-time basis (2-3 days per week) as their work and personal schedules permit.
Carpoolers save money and reduce wear and tear on their vehicles and their nerves. Some carpoolers reduce their commute time by as much as 20 minutes each way by using carpool lanes on congested corridors.
511.org offers free carpool ridematching services for Bay Area Commuters. Also, check with your employer to see if they offer in-house ridematching or carpool parking.