Two new Metro commuter bus lines serving the San Fernando Valley will begin service on Monday.

The 788 Valley-Westside Express is a new peak hour weekday service between Arleta/Panorama City and Westwood. Buses will operate between 5 a.m. and 10:16 a.m., and 2:30 p.m. and 8:18 p.m.

The buses will use the new 405 carpool lanes through the Sepulveda Pass, which should cut the length of trip by an expected 20 minutes.

The 744 rapid line will travel a U-shaped route between Lakeview Terrace and Northridge on weekdays as a replacement for bus lines 741 and 761. Weekend and holiday service will be limited between Lakeview Terrace and Sherman Oaks.

Also, the existing 734 rapid line is expanding its weekday service south of Ventura Boulevard along Sepulveda Boulevard as a replacement for the 761. The service will terminate in Westwood.

The changes were developed by Los Angeles County Metropolitan Transportation Agency with assistance from the eight-member San Fernando Valley Service Council, one of five councils giving regional input to the transit agency.

The base fare for Metro is $1.75 with free transfers for two hours when using a TAP card.