Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ TRAFFIC CONTROL DEVICES AND TRAFFIC SIGNAL SYSTEMS https://trid.trb.org/View/196204 Wed, 30 Nov 1983 00:00:00 GMT https://trid.trb.org/View/196204 PRESCRIPTION FOR DEMAND-RESPONSIVE URBAN TRAFFIC CONTROL (ABRIDGMENT) (DISCUSSION AND CLOSURE) https://trid.trb.org/View/188782 Tue, 31 May 1983 00:00:00 GMT https://trid.trb.org/View/188782