Metro already has put six new articulated hybrids buses into service and the remaining new hybrid coaches are in the process of being serviced and will be deployed within the next few weeks.

Other hybrid buses already in the fleet will be reassigned so that the larger coaches are spread across Metro's system to help ease overcrowding on some of the busiest routes.

At least 40 weekday trips that are currently overcrowded and operating with standard 40-foot buses will be assigned larger coaches. Once all 22 are in service, the new buses will deliver approximately 90 total weekday trips.

The hybrids are 60 percent larger than standard buses, and they will relieve an overall shortage of larger buses in Metro's fleet and give the fleet the flexibility needed to maximize the use of its fleet to carry the most passengers. The addition brings the total number of hybrid buses in the Metro system to 236 - one of the largest articulated hybrid fleets in North America.

The hybrid buses have already proven themselves to be excellent performers, county officials say. They achieve better fuel economy compared to regular buses, while delivering a smoother and quieter ride for passengers. Metro estimates each hybrid bus burns 30 percent less fuel than a conventional coach, which adds up to much-needed fuel economy in this era of escalating fuel costs.