Metro says its Measure J would speed up transportation projects listed in pink by allowing the agency to take out loans earlier and begin work within five years, instead of 20, as originally planned.
A half-cent sales tax for transportation would be extended for an extra 30 years if voters in Los Angeles County pass Measure J, which is backed by the Metropolitan Transportation Authority.
Such a tax is already in place, but it is set to expire in 2039. Measure J, if passed, would extend that tax to 2069.
The transportation agency, which calls itself Metro, wants to lock in the extra 30 years so they can more more quickly complete work on a bevy of promised transportation projects, while taking advantage of current low interest rates and reduced construction costs.
The measure, which requires approval of two-thirds of voters, is being sold as a way to reduce traffic and create jobs.
It would speed up construction of expanded rail lines, and freeway and street improvements that were planned under the existing tax, which was passed as Measure R in 2008.
If Measure J passes, work would start on the projects within five years instead of 20 as originally planned.
Proponents of Measure J cite an analysis from the Los Angeles Economic Development Corp. (PDF) stating the Measure J would acclerate hiring for more than 400,000 new local jobs.
"Voters across the county agree that everyone benefits from traffic relief; everyone benefits when we put people to work," said Matt Szabo, a former LA deputy mayor and now executive director of the campaign's Yes on Measure J Committee for Jobs and Traffic Relief.
Opponents call the measure a "blank check" that would shift the financial burden of transportation projects to a future generation, with the tax hike set to continue until 2069. And they dispute the jobs figures, while arguing the list of projects benefits the city of LA more than other areas.
"It's very LA city-centric," said Tony Bell, spokesman for county Supervisor and Metro board Chairman Mike Antonovich, who opposes Measure J and opposed Measure R. "We have 88 cities and unincorporated areas … They're not getting their fair share."
Szabo disputed that, noting projects in the South Bay and San Gabriel Valley.
The measure would create no new projects, but a list of projects promised in Measure R would be accelerated. Those include:
Some projects depend on federal funding for completion - a fact that's been highlighted by critics of Measure J.
Proponents of the sales tax extension say the security of revenue in the future will allow Metro to take out bonds now at lower interest rates and not begin paying them back till 2039.
"We will be able to advance these projects at an extraordinarily low cost," Szabo said.
County supervisors Michael Antonovich and Don Knabe oppose the measure, as does LA City Councilman Bernard Parks.
They're joined by the Bus Riders Union, which has disapproved of Metro's emphasis on rail, and the Beverly Hills school board, which battled with Metro over safety concerns about the Westside Subway route.
Supporters include a coalition of business, environmental and labor groups, with LA Mayor Antonio Villaraigosa – the self-described "transportation mayor" – as a champion.
Measure J is projected to cost an average of about $25 per person annually, and is expected to generate some $90 billion between 2039 and 2069, Metro officials have said.
It was polling close to the two-thirds vote margin, according to a Yes on J internal poll released in September. Measure R passed with 67.9 percent of the vote in 2008.