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/ Intrazonal or Interzonal? Improving Intrazonal Travel Forecast in a Four-Step Travel Demand Model https://trid.trb.org/View/1572412 Fri, 01 Mar 2019 15:50:57 GMT https://trid.trb.org/View/1572412 Basic Theory of Continuous Non-constrained Gravity Models https://trid.trb.org/View/1486563 Mon, 20 Nov 2017 17:09:17 GMT https://trid.trb.org/View/1486563 Intrazonal Trip Distances: An Estimation Approach and Application to a Case Study https://trid.trb.org/View/1336621 Thu, 05 Feb 2015 11:10:58 GMT https://trid.trb.org/View/1336621 Are intrazonal trips ignorable? https://trid.trb.org/View/1083957 Fri, 14 Jan 2011 10:19:55 GMT https://trid.trb.org/View/1083957 REFINEMENT OF FSUTMS TRIP DISTRIBUTION METHODOLOGY https://trid.trb.org/View/747806 Mon, 31 Jan 2005 00:00:00 GMT https://trid.trb.org/View/747806 DIFFERENT TRAVEL PATTERNS: INTERZONAL, INTRAZONAL, AND EXTERNAL TRIPS https://trid.trb.org/View/457575 Thu, 22 Feb 1996 00:00:00 GMT https://trid.trb.org/View/457575 MODEL OF INTRAZONAL TRIP DISTRIBUTION CONSIDERING CENTRALITY INDEX https://trid.trb.org/View/286898 Sat, 31 Dec 1988 00:00:00 GMT https://trid.trb.org/View/286898 LENGTH AND PROPORTION OF INTRAZONAL TRIPS. TRANSPORTATION PLANNING RESEARCH COLLOQUIUM 1987, EIGHT MILLION CARS IN 2010, THE HAGUE, NOVEMBER 26-27, 1987 https://trid.trb.org/View/290839 Wed, 31 Aug 1988 00:00:00 GMT https://trid.trb.org/View/290839 SPATIAL AGGREGATION BIAS IN TRIP DISTRIBUTION PROBABILITIES: THE CASE OF THE OPPERTUNITY MODEL https://trid.trb.org/View/59129 Sat, 29 Oct 1977 00:00:00 GMT https://trid.trb.org/View/59129 A LAND USE/TRANSPORTATION OPTIMIZATION PROCEDURE https://trid.trb.org/View/67865 Wed, 30 Mar 1977 00:00:00 GMT https://trid.trb.org/View/67865 A METHOD TO SIMPLIFY NETWORK REPRESENTATION IN TRANSPORTATION PLANNING https://trid.trb.org/View/46879 Thu, 16 Sep 1976 00:00:00 GMT https://trid.trb.org/View/46879 THEORY OF TRAFFIC ASSIGNMENT TO A ROAD NETWORK https://trid.trb.org/View/122885 Thu, 11 Apr 1974 00:00:00 GMT https://trid.trb.org/View/122885 GENERAL INFORMATION AND TRIPS, MONTREAL REGION https://trid.trb.org/View/117377 Mon, 21 May 1973 00:00:00 GMT https://trid.trb.org/View/117377 THE INTERSTATE COMMERCIAL ZONE: AN INDUSTRIAL LOCATION FACTOR https://trid.trb.org/View/92427 Sun, 20 Aug 1972 00:00:00 GMT https://trid.trb.org/View/92427 AN EVALUATION OF THE GRAVITY MODEL TRIP DISTRIBUTION https://trid.trb.org/View/114938 Mon, 16 Mar 1970 00:00:00 GMT https://trid.trb.org/View/114938