Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2024. 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/ Visualizing the Spatial Density of Traffic Fatalities: SafeRoadMaps National Heat Maps https://trid.trb.org/View/910758 Wed, 14 Apr 2010 14:41:18 GMT https://trid.trb.org/View/910758 TRAFFIC VOLUME MONITORING RELATED RESEARCH II https://trid.trb.org/View/719071 Fri, 09 Aug 2002 00:00:00 GMT https://trid.trb.org/View/719071