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/ MEET: MAINTENANCE, ECONOMY AND ECOLOGY TRAINING https://trid.trb.org/View/90268 Mon, 18 Oct 1971 00:00:00 GMT https://trid.trb.org/View/90268 THE FUTURE OF HIGHWAY MAINTENANCE https://trid.trb.org/View/107356 Sat, 10 Apr 1971 00:00:00 GMT https://trid.trb.org/View/107356 USE FOAM TO CONTROL FROST https://trid.trb.org/View/110828 Sun, 07 Mar 1971 00:00:00 GMT https://trid.trb.org/View/110828 STATE-DEVELOPED INNOVATIONS SPEED RIGHT-OF-WAY MAINTENACE https://trid.trb.org/View/110829 Sun, 07 Mar 1971 00:00:00 GMT https://trid.trb.org/View/110829