Now that I think about it, what Caltrans does by posting a chain speed limit
and then using the CMSs to announce the chain requirements (as well as
changing some signs manually) effectively does change the speed limit
wherever chains are needed. And if they only used the CMSs they could do it
remotely.
Dan Smith
Principal
The Tioga Group, Inc.
288 Rheem Blvd.
Moraga, CA 94556
(925) 631-0742
fax (925) 631-7936
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