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/ POSSIBILITIES FOR DEVELOPING FREEDOM FOR CYCLING IN SAFETY IN ESTABLISHED TOWNS AND CITIES https://trid.trb.org/View/80523 Tue, 03 Feb 1981 00:00:00 GMT https://trid.trb.org/View/80523 THE PROBLEM OF AIR POLLUTION BY TRAFFIC IN TOWNS SHOULD BE CONSIDERED MORE https://trid.trb.org/View/80525 Tue, 03 Feb 1981 00:00:00 GMT https://trid.trb.org/View/80525 REPORT TO THE STANDING COMMITTEE OF TRAFFIC "SAFE ON THE WAY TO SCHOOL" https://trid.trb.org/View/80477 Sat, 13 Jan 1979 00:00:00 GMT https://trid.trb.org/View/80477 SAFETY AT PEDESTRIAN CROSSINGS - THE COPENHAGEN SYSTEM https://trid.trb.org/View/80478 Sat, 13 Jan 1979 00:00:00 GMT https://trid.trb.org/View/80478