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/ Traffic control devices for highways, work zones, and railroad grade crossings 1990 https://trid.trb.org/View/1182045 Fri, 24 Aug 2012 03:46:20 GMT https://trid.trb.org/View/1182045 SCHOOL SPEED LIMITS AND SPEEDS IN SCHOOL ZONES https://trid.trb.org/View/312949 Sun, 30 Sep 1990 00:00:00 GMT https://trid.trb.org/View/312949 INTEGRATING MICROSCOPIC SIMULATION AND OPTIMIZATION: APPLICATION TO FREEWAY WORK ZONE TRAFFIC CONTROL https://trid.trb.org/View/312951 Sun, 30 Sep 1990 00:00:00 GMT https://trid.trb.org/View/312951 IMPROVING WORK ZONE DELINEATION ON LIMITED ACCESS HIGHWAYS https://trid.trb.org/View/312953 Sun, 30 Sep 1990 00:00:00 GMT https://trid.trb.org/View/312953 MODEL OF THE EFFECTS OF RAIL-HIGHWAY GRADE CROSSINGS ON EMERGENCY ACCESS https://trid.trb.org/View/312958 Sun, 30 Sep 1990 00:00:00 GMT https://trid.trb.org/View/312958 ADVANCED SIGNING FOR RECREATIONAL AND HISTORICAL SITES https://trid.trb.org/View/312950 Sun, 30 Sep 1990 00:00:00 GMT https://trid.trb.org/View/312950 ASSESSMENT OF WARNING TIME NEEDS AT RAILROAD-HIGHWAY GRADE CROSSINGS WITH ACTIVE TRAFFIC CONTROL https://trid.trb.org/View/312957 Sun, 30 Sep 1990 00:00:00 GMT https://trid.trb.org/View/312957 EVALUATION OF RAILROAD PREEMPTION CAPABILITIES OF TRAFFIC SIGNAL CONTROLLERS https://trid.trb.org/View/312954 Sun, 30 Sep 1990 00:00:00 GMT https://trid.trb.org/View/312954 CRASH TESTS OF WORK ZONE TRAFFIC CONTROL DEVICES https://trid.trb.org/View/312952 Sun, 30 Sep 1990 00:00:00 GMT https://trid.trb.org/View/312952 GUIDELINES FOR THE USE OF SELECTED ACTIVE TRAFFIC CONTROL DEVICES AT RAILROAD-HIGHWAY GRADE CROSSINGS (WITH DISCUSSION AND CLOSURE) https://trid.trb.org/View/312955 Sun, 30 Sep 1990 00:00:00 GMT https://trid.trb.org/View/312955 EVALUATION OF CONSTANT WARNING TIMES USING TRAIN PREDICTORS AT A GRADE CROSSING WITH FLASHING LIGHT SIGNALS https://trid.trb.org/View/312956 Sun, 30 Sep 1990 00:00:00 GMT https://trid.trb.org/View/312956