Rumors of a possible lawsuit by West L.A. residents over the final environmental impact report for Phase 2 of the Expo Line are reported on LA Streetsblog and over at Curbed LA. The issue is how the train cuts through a slice of West Los Angeles immediately south of the Westside Pavilion — namely, should it be at street level or underground? The Construction Authority’s Board is due to vote on the FEIR on Feb. 4. What remains unknown is the degree to which such a lawsuit could slow or halt construction of the line, which is scheduled to open between Culver City and Santa Monica in 2015.

It took a lawsuit, but Caltrans has agreed to spend more than a billion dollars upgrading about 2,500 miles of sidewalk to be more accessible to the disabled, reports the L.A. Times. Most of the sidewalks and crosswalks that will be fixed are near state roads or park-and-ride lots.

And get this: if you’re on a subway train under San Francisco Bay and really, really need to find out what Bruce Springsteen played last night or who is going to skate on the Kings’ fourth line next week, there’s now wi-fi service available to BART passengers. The S.F. Chronicle has a short on this very cool development.

The rest of today’s transportation headlines, gathered once again by the mighty Metro library, are after the jump.

2009: The Legislative Year In Review
Passenger Transport

Bad News Dept.: Lawsuit Over Expo Phase II?
LA Curbed

Bay Area Transportation Commission Starts Climate Sustainability Fund
SF StreetsBlog

Big Ideas: Kill the Cul-De-Sac And Build Bicycle Highways
The City Fix

Can Transit Perform Well In “Abandoned” Urban Cores?
Human Transit

Count Shows Bike Trends: Glendale Hopes To Continue Adding Bicycle-Friendly Measures While Increasing Safety
Glendale News Press

The “Diesel Death Zone:” Fit For A School Room?
USC Annenberg Neon Tommy

Efforts Lag At Making Highway Work Zones Safer
New York Times

End-Run Around Clean Air Program Could Mean Dirty Skies Continue
USC Annenberg Neon Tommy

Funding In New Legislation Would Equal Stimulus Transportation Totals (15 shovel-ready projects in Riverside and San Bernardino Counties)
Riverside Press-Enterprise

High-Speed Rail Tops New Policy Directions For 2009
Passenger Transport
Wired

Obama Signs Transportation Bill, Metrolink Receives Safety Funds
LAist

Rail, Bus Systems Move Forward Across North America In 2009
Passenger Transport

Reviewing The Best And Worst Of Times For Public Transit In 2009
Passenger Transport

Schwarzenegger To Seek Federal Help For California Budget
Los Angeles Times

State To Pay Unprecedented $1.1 Billion To Make Walkways Accessible To Disabled
Los Angeles Times

Tax District Approved For D.C. Metro Extension
Planetizen

Wireless Now Available In BART’s Transbay Tube
San Francisco Chronicle