Orange County voters approved a ½-cent sales tax in 1990, known as Measure M. It was approved for an additional 30 years to 2041, and the renewed program is known as M2 or OC Go. Some funds are non-competitive and distributed to local agencies based on a formula of population, arterial centerline miles and share of taxable sales. Other funds are competitive and offered to local agencies in the following categories:
Project O – Regional Capacity Program: Focuses on improvements to the Master Plan of Arterial Highways (MPAH). The MPAH serves as the backbone of Orange County’s arterial street network.
Project P – Regional Traffic Signal Synchronization Program: Intended to improve the flow of traffic in your community by developing and implementing traffic light coordination.
Project X – Environmental Cleanup: Helps improve overall water quality in Orange County from transportation-generated pollution.
Project V – Community Based Transit / Circulators: Helps local agencies establish local bus transit services such as community-based circulators, shuttles and bus trolleys that complement regional bus and rail services, and meet needs in areas not adequately served by regional transit.
Project W – Safe Transit Stops: This is a fixed-scope program which provides funding for passenger amenities at the 100 busiest bus stops in Orange County determined by average daily weekday passenger boardings.
Additional information can be found on OCTA’s website.
City of Irvine - Measure M2 Grant Projects
| Project | M2 / CTFP Program | Grant Amount | Fiscal Year |
| Culver Drive (Scottsdale Dr. to 1-5) (Right of Way) | O - Regional Capacity | $39,832 | 2011-12 |
| Jamboree Road/Barranca Road Intersection (Engineering) | O - Regional Capacity | $25,000 | 2011-12 |
| Jamboree Road/I-405 Southbound Ramps (Engineering) | O - Regional Capacity | $105,000 | 2011-12 |
| Jamboree Road/Main Street Intersection (Engineering) | O - Regional Capacity | $52,600 | 2011-12 |
| Jamboree Road Corridor | P - Signal Synchronization | $230,608 | 2011-12 |
| Culver Drive (Scottsdale Dr. to 1-5) (Construction) | O - Regional Capacity | $777,871 | 2012-13 |
| Campus Drive (University to Stanford) Irrigation Modification Project | X - Environmental Cleanup | $100,000 | 2012-13 |
| Jeffrey Road Corridor | P - Signal Synchronization | $410,032 | 2012-13 |
| Culver Drive Corridor | P - Signal Synchronization | $779,856 | 2012-13 |
| Jamboree Road/Barranca Rd. Intersection (Engineering) | O - Regional Capacity | $26,523 | 2013-14 |
| Jamboree Road/Main St. Intersection (Engineering) | O - Regional Capacity | $83,811 | 2013-14 |
| Peters Canyon Wash Water Capture and Reuse Pipeline | X - Environmental Cleanup | $3,273,105 | 2013-14 |
| Barranca Parkway | P - Signal Synchronization | $2,106,434 | 2013-14 |
| Alton Parkway | P - Signal Synchronization | $1,209,396 | 2013-14 |
| University Drive (MacArthur to Campus) (Engineering) | O - Regional Capacity | $910,000 | 2014-15 |
| University Drive/Ridgeline Drive/Rosa Drew Lane Intersection (Engineering) | O - Regional Capacity | $385,000 | 2014-15 |
| Campus Drive (at University Center) | W - Safe Transit Stops | $30,000 | 2014-15 |
| Jamboree/Barranca Intersection (Right of Way) | O - Regional Capacity | $68,904 | 2015-16 |
| Catch Basin Filter Installation Project No. 1 | X - Environmental Cleanup | $200,000 | 2015-16 |
| Jamboree/Barranca Intersection (Construction) | O - Regional Capacity | $381,566 | 2016-17 |
| University Dr. (MacArthur to Campus) (Right of Way) | O - Regional Capacity | $2,477,740 | 2016-17 |
| Jamboree Road Widening (600 feet north of Main Street to Barranca Parkway) (Engineering) | O - Regional Capacity | $801,000 | 2016-17 |
| Irvine Center Drive/Edinger Ave. Synchronization | P - Signal Synchronization | $1,824,000 | 2016-17 |
| Von Karman Avenue/Tustin Ranch Synchronization | P - Signal Synchronization | $1,439,980 | 2016-17 |
| University Drive/Ridgeline Drive/Rosa Drew Lane Intersection Improvements (Right of Way) | O - Regional Capacity | $127,163 | 2017-18 |
| Irvine Spectrum Catch Basin Connector Pipe Screen | X - Environmental Cleanup | $30,720 | 2017-18 |
| Irvine Boulevard Signal Synchronization Project | P - Signal Synchronization | $378,166 | 2017-18 |
| University Drive Widening (MacArthur Boulevard to Campus Drive) (Construction) | O - Regional Capacity | $4,104,971 | 2018-19 |
| University Drive Widening from Ridgeline Drive to lnterstate-405 | O - Regional Capacity | $327,262 | 2018-19 |
| Harvard Avenue at Michelson Drive Intersection Improvements | O - Regional Capacity | $54,420 | 2018-19 |
| Culver Drive at Alton Pkwy. Intersection Improvements | O - Regional Capacity | $194,047 | 2018-19 |
| Main Street Corridor | P - Signal Synchronization | $1,174,514 | 2018-19 |
| Culver/Bonita Canyon/Ford Corridor | P - Signal Synchronization | $1,139,728 | 2018-19 |
| MacArthur Boulevard Corridor | P - Signal Synchronization | $1,258,440 | 2019-10 |
| University/Ridgeline Intersection Improvement | O - Regional Capacity | $1,724,024 | 2019-20 |