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Comprehensive Truck Size and Weight Limits Study: Linkage between the Revised Desk Scans and Project Plans Report

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April 2016

U.S. Department of Transportation Federal Highway Administration logo

Table of Contents

1 Introduction
2 Modal Shift Comparative Analysis
2.1 Purpose
2.2 Modal Shift Analysis Linkages
2.3 Energy and Environmental Analysis Linkages
2.4 Traffic Operations Analysis Linkages
3 Compliance Comparative Analysis
3.1 Purpose
3.2 Linkages Regarding the General Technical Approach
3.3 Linkages Regarding Available Data/Analysis Methods
3.4 References
4 Safety Comparative Analysis
4.1 Purpose
4.2 Safety Analysis Linkages
4.3 Linkages Concerning Available Data and Methods
4.4 Summary
4.5 References
5 Pavement Comparative Analysis
5.1 Purpose
5.2 Pavement Analysis Linkages
6 Bridge Comparative Analysis
6.1 Purpose
6.2 Bridge Analysis Linkages

List of Tables

Table 3-1 Performance Measures Used in the Compliance Comparative Analysis
Table 4-1 Summary of Crash Analysis Methods Used in 2014 CTSW Study
Table 4-2 Summary of Distress Type Target Values

List of Acronyms

Acronym Definition
ABrR AASHTOWare Bridge Rating
AASHTO Association of American State Highway and Transportation Officials
CAFT constant amplitude fatigue threshold
CTSW Comprehensive Truck Size and Weight Limits Study
DOT Department of Transportation
ESAL equivalent single axle loads
FAF Freight Analysis Framework
FHWA Federal Highway Administration
FMIS Federal Financial Management Information System
FRA Federal Railway Administration
GVW Gross vehicle weight
HCM Highway Capacity Manual
ITIC Intermodal Transportation Inventory Cost
LCV longer combination vehicles
LEF load equivalency factors
LTPP Long Term Pavement Performance Program
LRFR Load Resistance Factor Rating
MCMIS Motor Carrier Management Information System
NDOR Nebraska Department of Roads
NESCCAF Northeast States Center for a Clean Air Future
NHS National Highway System
NHTSA National Highway Traffic Safety Administration
OS/OW oversize/overweight
PCE passenger car equivalent
PI Primary Investigator
RF Rating Factor
SEP State Enforcement Plans
STB Surface Transportation Board
TRB Transportation Research Board
TSW truck size and weight
USDOT US Department of Transportation
VMT vehicle miles traveled
VIUS Vehicle Inventory and Use Survey
WIM weigh-in-motion


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