- Planning Studies in Progress
- Completed Studies
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- Pacific Electric Right-of-Way/West Santa Ana Branch Corridor Alternatives Analysis (2011) - SCAG
- Historic Arroyo Seco Parkway Corridor Partnership Plan - Caltrans
- SR-91 Corridor Improvement Project - RCTC
- I-15 Master Plan - I-15 Mobility Alliance
- Big Bear Modal Alternatives Analysis - SCAG
- La Cienega Boulevard Corridor (2010) - SCAG
- Central County Corridor MIS (2010) - OCTA
- I-405 / I-210 Corridor System Management Plans and Template Study - SCAG/Caltrans
- Redlands Passenger Rail Extension (2009)
- I-5 Corridor Economic Development Plan (2010) - SCAG
- Eastside Transit Corridor Phase 2 (2008) - Metro
- Regional Connector Transit Corridor (2008) - Metro
- Westside Extension Transit Corridor (2008) - Metro
- Harbor Subdivision Transit Corridor (2009) - Metro
- OC/LA Intercounty Transportation Study (2008) - OCTA
- South Orange County Major Investment Study (2007) - OCTA
- Santa Paula Branch Line Study - SCAG
- Ventura-Santa Barbara Commuter Rail Study - SCAG
- Inland Port Feasibility Study (2007) - SCAG
- Multi-County Goods Movement Action Plan (2008)
- Northeast Corridor Feasibility Study/SR-78 (2005) - IVAG
- Lincoln Boulevard Mobility Improvement Study (2004) - City of Los Angeles
- One-Way Streets in Los Angeles (2005) - City of Los Angeles
- SR-14 Reversible HOV Lane Feasibility Study (2006) - Metro
- North County Combined Highway Corridor Study (2004) - Metro
- SR-91/I-605 Needs Assessment (2005) - Gateway Cities COG
- I-710 Major Corridor Study (2005) - Metro
- I-710 Tunnel Technical Feasibility Assessment (2006) - Metro
- US-101 Freeway Corridor Improvement Study (2003) - Metro
- Crenshaw Transit Corridor (2003) - Metro
- I-405 Major Investment Study (2005) - OCTA
- Orange County BRT - OCTA
- CETAP Riverside County to Orange County (2005) - OCTA/RCTC
- E Street Rapid Transit Corridor (2006) - Omnitrans
- I-15 Comprehensive Corridor Study (2005) - SANBAG
SCAG adopted policy and plans supported similar regional RSTIS and corridor planning projects in each of its published Regional Transportation Plans extending back to 1975.
- Corridor Planning Links
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- California Department of Transportation (Caltrans)
- Caltrans District 7: Los Angeles & Ventura Counties
- Caltrans District 8: Riverside & San Bernardino Counties
- Caltrans District 11: Imperial & San Diego Counties
- Caltrans District 12: Orange County
- Federal Highway Administration (FHWA)
- Federal Transit Administration (FTA)
- U.S. Department of Transportation (USDOT)
- Los Angeles County Metropolitan Transportation Authority (Metro)
- Orange County Transportation Authority (OCTA)
- Riverside County Transportation Commission (RCTC)
- San Bernardino Associated Governments (SANBAG)
- Ventura County Transportation Commission (VCTC)
Corridor Planning Program
Corridor planning studies, also known as Regionally Significant Transportation Investment Studies (RSTIS), determine transportation need and evaluate alternatives. SCAG, as well as state and local transportation planning agencies, may initiate these studies. Each typically incorporates a "purpose and need" statement, alternatives analysis utilizing a range of performance indicators, record of community involvement, a locally preferred alternative selection and preliminary environmental documentation, as appropriate.
SCAG requests that, upon initiation of a RSTIS, project sponsors contact the RSTIS coordinator, Ryan Kuo, at (213) 236-1813 or kuo@scag.ca.gov. For more information regarding RSTIS, please review the RSTIS Coordination Process adopted by SCAG's Regional Council in September 2010.
Contact
If you have questions or comments, please contact Ryan Kuo at (213) 236-1813 or by email at kuo@scag.ca.gov.

