Sonoma–Marin Area Rail Transit

Sonoma–Marin Area Rail Transit
A SMART train at Santa Rosa Downtown station in 2018
Overview
OwnerNWP
SMART
Locale
Termini
Stations14 (+2 planned)
Websitesonomamarintrain.org
Service
TypeCommuter rail
Operator(s)Sonoma–Marin Area Rail Transit District
Depot(s)SMART Rail Operations Center
Rolling stock18 Nippon Sharyo DMU
Daily ridership3,500 (weekdays, Q1 2025)
Ridership973,700 (2024)
History
Commenced2012 (2012)
OpenedJune 29, 2017 (2017-06-29) (preview service)
August 25, 2017 (2017-08-25) (full service)
SMART District Established2002
Technical
Line length48 mi (77 km) (operational)
70 mi (110 km) (mandated)
Number of trackssingle (85%) with passing sidings
Track gauge4 ft 8+12 in (1,435 mm) standard gauge
Operating speed38.5 mph (62 km/h) (average)
79 mph (127 km/h) (top)
Route map
Sonoma–Marin Area Rail Transit highlighted in green
Cloverdale
planned
Healdsburg
c.2028
Windsor
Rail Operations Center
Sonoma County Airport
Santa Rosa North
Santa Rosa Downtown
Rohnert Park
Cotati
Petaluma North
Petaluma Downtown
Petaluma River
Novato San Marin
Novato Downtown
SMART-owned line
to Napa Junction
Novato Hamilton
Marin Civic Center
San Rafael
Larkspur

SMART | future
SMART Trail | future
All SMART stations are accessible

Sonoma–Marin Area Rail Transit (SMART) is a commuter rail service and bicycle-pedestrian pathway project in Sonoma and Marin counties of the U.S. state of California. When completed, the entire system will serve a 70-mile (110 km) corridor between Cloverdale in northern Sonoma County and Larkspur Landing in Marin County. In 2024, the system had a ridership of 973,700, or about 3,500 per weekday as of the first quarter of 2025.

The first phase of the system, a 43-mile (69 km) segment between Northern Santa Rosa and downtown San Rafael, opened to public preview and excursion services (as far south as Marin County Civic Center) on June 29, 2017. Regular service began on August 25, 2017, after the Federal Railroad Administration (FRA) gave the final approval for the positive train control (PTC) system. The southern two miles (3.2 km) of the line was completed to Larkspur with service commencing on December 14, 2019.