After three years dealing with the nonstop problems of the Bay Area’s biggest mass transit system, San Francisco BART Board Director Nick Josefowitz has his sights on a higher office: the District Two seat on the Board of Supervisors.

On Tuesday, Josefowitz filed papers to succeed Supervisor Mark Farrell and represent the upscale Marina, Cow Hollow and Presidio Heights neighborhoods. Farrell will be termed out next year and is widely seen as a candidate for mayor.

The other official District Two candidate, startup founder Schuyler Hudak, entered the race in June and has so far raised $39,020, much of it coming from lawyers, tech workers and bankers. Recreation and Park Commissioner and labor attorney Kat Anderson — who works for the Pacific Media Workers Guild, which represents Chronicle employees — has hired consultant Derek Jansen to run her campaign, but has not formally entered the race.

So far, Josefowitz seems to be the favorite. He is a former clean energy CEO who began his political career three years ago by unseating longtime BART board director James Fang. He’s clinched early endorsements from state Sen. Scott Wiener and Assemblyman David Chiu — both former supervisors — and is building a campaign platform around the quality-of-life issues: crime, homelessness, the high cost of living, congestion and climate change.

“I think we face some real challenges that are getting worse,” said Josefowitz, noting that global warming could put Crissy Field and several blocks of the Marina neighborhood underwater within the next few decades.

If elected, he said he wants to crack down on double parking and beef up public transit, perhaps by adding new Central Subway stations at Fisherman’s Wharf and at the base of Russian Hill.

— Rachel Swan

Email: cityinsider@sfchronicle.com, rswan@sfchronicle.com Twitter: @sfcityinsider @rachelswan