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/ OPTIMAL FLOW CONTROL OF AIR TRAFFIC https://trid.trb.org/View/143755 Tue, 15 Jan 2002 00:00:00 GMT https://trid.trb.org/View/143755 AIR TRAFFIC CONGESTION AND CAPACITY (A BIBLIOGRAPHY WITH ABSTRACTS) https://trid.trb.org/View/89159 Wed, 17 Oct 1979 00:00:00 GMT https://trid.trb.org/View/89159