metro rail design criteria section 5
metrolink projects
metrolink track maintenance manual
arema 50 second rule
los angeles metro rail design criteria
metro design guidelines
metrolink plansscrra form 37

Redondo Junction Historic District 1 1 The main line currently used by Amtrak / Southern California Regional Rail Authority ( SCRRA ) in an at - grade Palmdale and Southern California Regional Rail Authority SCRRA, Railroad Design Review Services for the Rancho Vista Grade Separation Project. The design and construction of the underpass grade-separation structure shall comply with the minimum clearance requirements set forth in California Public26-D. Clearance design must also comply with the requirements detailed in the SCRRA Grade Separation Guidelines, dated July 2009, for any proposed