What Is 2008 Los Angeles County Measure R

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Last updated: April 15, 2026

Quick Answer: 2008 Los Angeles County Measure R was a ballot initiative passed on November 4, 2008, that extended and expanded a half-cent sales tax to fund transportation projects. It authorized $40 billion in funding over 30 years for transit expansion, road improvements, and highway congestion relief.

Key Facts

Measure R passed on November 4, 2008, with 67.2% voter approval
Authorized a 0.5% sales tax increase in Los Angeles County
Projected to generate $40 billion over 30 years for transportation
Funds allocated to Metro Rail expansion, bus upgrades, and road repairs
Includes provisions for independent oversight via the RTA Citizens Oversight Committee

Overview

Los Angeles County Measure R, approved by voters on November 4, 2008, is a landmark transportation funding initiative designed to address decades of infrastructure strain. It introduced a 0.5% countywide sales tax increase dedicated exclusively to transportation improvements, marking one of the most significant local transit investments in U.S. history.

The initiative was championed by the Los Angeles County Metropolitan Transportation Authority (Metro) to accelerate rail, bus, and highway projects. With growing congestion and limited public transit options, Measure R aimed to transform mobility across the region by funding new lines, modernizing fleets, and improving road conditions.

Measure R passed with 67.2% support, surpassing the two-thirds threshold required for tax measures in California at the time.
The initiative established a dedicated 30-year funding stream, generating an estimated $40 billion through a 0.5% sales tax.
Revenue is distributed across four main categories: transit capital projects, operations, highways, and local streets and roads.
Projects funded include the Expo Line extension, the Gold Line Foothill Extension, and the Crenshaw/LAX Line.
An independent RTA Citizens Oversight Committee was created to ensure transparency and accountability in fund allocation.

How It Works

Measure R operates through a structured funding mechanism that allocates tax revenue based on predefined project categories and timelines. The tax took effect on April 1, 2009, and is collected uniformly across all 88 cities in Los Angeles County.

Term: The sales tax is set to remain in effect for 30 years, expiring in 2039 unless renewed. It provides long-term stability for multi-year infrastructure projects.
Revenue Allocation: 50% of funds go to transit capital projects, including new rail lines and bus rapid transit corridors.
Operations Support: 20% is dedicated to transit operations, helping Metro maintain and expand bus and rail service frequency.
Highway Improvements: 15% funds state highway projects, such as carpool lanes and interchange upgrades, coordinated with Caltrans.
Local Streets: 15% is distributed to cities and unincorporated areas for pothole repair, traffic signal synchronization, and pedestrian safety.
Accelerated Timeline: Measure R allowed key projects like the Purple Line Extension to be completed up to 10 years earlier than previously planned.
Job Creation: The initiative is projected to generate over 450,000 direct and indirect jobs during its 30-year span.

Comparison at a Glance

Below is a comparison of Measure R with similar transportation measures in other major U.S. cities:

Measure	Location	Year Passed	Tax Increase	Projected Revenue
Measure R	Los Angeles County	2008	0.5% sales tax	$40 billion over 30 years
Measure J	Orange County	2016	0.5% sales tax	$12 billion over 30 years
Proposition 1	San Diego County	2004	0.5% sales tax	$30 billion over 40 years
Transit Tax	Seattle, WA	2008	0.5% sales tax	$17.8 billion over 10 years
Proposition 42	San Francisco County	2003	0.5% sales tax	$5 billion over 30 years

While many cities have adopted similar half-cent sales taxes, Measure R stands out due to its massive scale and integration of rail, highway, and local street improvements. Its broad voter support and comprehensive oversight model have made it a national benchmark for urban transportation funding.

Why It Matters

Measure R represents a transformative shift in how Los Angeles approaches mobility, moving from car dependency toward a multimodal transportation network. Its long-term funding model has enabled ambitious projects that would otherwise be financially unfeasible.

The Purple Line Extension will connect downtown LA to Westwood, reducing commute times by up to 35 minutes.
Measure R funds helped complete the Expo Line to Santa Monica in 2016, restoring rail service to the coast after 60 years.
Bus rapid transit lines on Wilshire and Vermont corridors have increased ridership by over 20%.
Highway improvements include the I-405 Sepulveda Pass widening, one of California’s most congested corridors.
Local street repairs have benefited over 1.3 million residents in underserved communities.
The initiative set a precedent for Measure M in Orange County and other regional transportation taxes.

By combining voter accountability with strategic planning, Measure R has become a model for sustainable urban development in sprawling metropolitan areas.