Delta RetroSign GRX-1 User Manual page 40

Note: special cases W3-1, W3-2, W3-3, and W3-5 are not supported by the GRX because these
types of sign contain 3 or more colors.
How to work with the MUTCD library is further described in Section 3 'Working with templates, series,
and inspections'.
RetroSign GRX User Manual / December 2017
40
DELTA