Just noticed California has adopted the 2012 California MUTCD
which incorporates the 2009 national MUTCD. I briefly skimmed through the new MUTCD to see what California changed. Here are my brief observations...
* Arrow-per-lane diagrammatic signs were left pretty much intact. I'm still doubtful these types of signs will be used anytime soon because the old stipple-arrow diagrammatic signs were left in the old MUTCD but were never erected in California.
* Left exit signing also remains intact including the requirement of a LEFT panel within the exit number tab however the California MUTCD still refers to the current G-series exit tabs with do not allow for the addition of a LEFT panel.
* ALL mentions of "private roads open for public travel" have been crossed out.
* California MUTCD shall not supersede current Standard Plans or Specifications and if there's a discrepancy, then the Standard Plans/Specifications will prevail. If the Standard Plans/Specs are changed, then all MUTCD requirements must be met. I find this particularly fascinating. This must be one of California's "outs" for implementing some of the new requirements from the 2009 MUTCD.
* Section 1A-13... the statement that caused some furor from the other state DOTs regarding the definition of a Standard statement (can't be modified due to engineering judgement/study) has been crossed out by Caltrans. This is another one of California's "outs".
* Yellow school crosswalks still must be used in California due to CVC (California Vehicle Code) requirement.
The 2012 California MUTCD was given the green light by the FHWA (substantial conformance) on January 12th and has been adopted by the state of California on January 13th.
Will this mean guide signing practices in California are going to change? In my opinion, probably not.