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LIST OF ACRONYMS
AADT Average Annual Daily Traffic
AASHO American Association of State Highway Officials
AASHTO American Association of State Highway and Transportation
Officials
AC asphalt concrete
ACJAC asphalt concrete overlay on asphalt concrete
AC/JPC asphalt concrete overlay on jointed plain concrete
AC OL asphalt concrete overlay
AC/PCC asphalt concrete overlay on Portland cement concrete
ACPA American Concrete Paving Association
ADT average daily traffic
ADTT average daily truck traffic
ARAN Automatic Road Analyzer
ARRB Australian Road Research Board
ARS average rectified slope
ARV average rectified velocity
ASC additional smoothness cost
ASTM American Society for Testing and Materials
BPR Bureau of Public Roads
CALTRANS California Department of Transportation
CARV calibrated average rectified velocity
COV coefficient of variation
CRCP continuously reinforced concrete pavement
CSC Civil Structural Consultants
DIP Digital Incremental Profiler
DNC digital noncontact
DOH Department of Highways
DOT DeparUnent of Transportation
DRI Danish Road Institute
ESALS equivalent singI - axle loads
EUAC equivalent uniform annual cost
FAA Federal Aviation Administration
FB flexible base
FHWA Federal Highway Administration
GM General Motors
GPS general pavement studies
HEMS highway performance monitoring system
HRT half-car roughness index
ICC International Cybernetics Corporation
IMS Infrastructure Management Services
IPFS Illinois Pavement Feedback System
IPMC International Pipe Machinery Corporation
TR] International Roughness Index
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IRRE
JPCP
JPCP OL
JRCP
LCCA
LISA
LTPP
MAS
MDR
MO
MPR
MRN
MTH
MVD
NAPA
NCHRP
PCA
PCC
PI
PRI
PRS
PSI
PSR
PW
QC
QI
RARS
RARV
RB
RI
RMS
RMSA
RMSVA
RN
RPPR
RQI
RSP
RTRRMS
SAL
SAS
SHA
SHRP
SN
SPS
SR
SV
TAL
International Road Roughness Experiment
jointecl plain concrete pavement
jo~ntect pla~n concrete pavement overIay
jo~nted re~nforced concrete pavement
life-cycle cost analysis
lightweight inertial surface analyzer
Long-Term Pavement Performance
mean absolute slope
mobile data recorder
Mays Meter output
mean panel rat~ngs
Mays ride number
Minnesota Trunk Highway
max~mum vertical distance
National Asphalt Pavement Association
National Cooperative Highway Research Program
PortIand Cement Association
Portiand cement concrete
profile index
profile roughness index
performance-related specification
present ser~riceability index
present serviceability rating
present worth
quality control
quarter-car s~mulation index
reference average rectified statistics
reference average rectified velocity
rigid base
Rideability Index
root-mean square
roof-mean square acceleration
root-mean square vertical acceleration
ride number
Rigid Pavement Performance and Rehabilitation
Ride Quality Index
road surface profiler
response-type road roughness measuring systems
single-axle load
statistical analysis software
State highway agency
Strategic Highway Research Progran
structural number
specific pavement studies
surface rating
salvage value
tandem-axle load
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TRRL
TRS
UMTRT
VOC
WASHO
Transportation Road Research Laboratory
telescoped rolling straightedge
University of Michigan Transportation Research Institute
vehicle occupant cost
Western Association of State Highway Officials
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correlation with user response but for which insufficient information is available to
develop a working specification at this time (Michigan DOT RQI, Janoff Ride Number
[~moff] and Sayers ode Number Sayer
Based on the five indices, properties of the equipment recommended for use in
modern smoothness construction specifications were identified. These properties
include the ability to accurately measure pavement surface wavelengths from 0.9 to
110 ft (0.27 to 33.5 m) with a sampling intermural of ~ in (25.4 mm). The static accuracy
(precision and bias) of this equipment should be +0.005 in (0.125 mm) at 95 percent
reliability. The 10-sample, single operator, dynamic precision for the equipment
should be 0.015 In (0.38 mm) at a confidence level of 95 percent within the
wavelengths of 0.9 and Il0 it (0.27 to 33.5 m). The dynamic bias of the equipment,
as compared to high-precision rod anc! level or Dipstick baseline profiles, should be
no more than 0.05 In (~.25 mm), according to the procedures described In ASTM
E950-94. A must-gr~nd location feature should also be Included In the software.
Over attributes, such as m~nunizing weight, Increasing speed, controlling
horizontal wander, and automating data collection, calibration, analysis, and
reporting should also be encouraged. Table 50 summarizes these recommended
properties of smoothness-measuring equipment.
The movement toward adopting a new pavement profiling system will not
happen overnight. Many of the current smoothness-measuring practices are deeply
Ingrained within Me highway agencies and paving industries that make it Impractical
to quickly move toward the adoption of new equipment and smoothness indices.
Highway agencies and paving contractors have invested significant resources In the
current systems, which in many cases are providing satisfactory results. However, in
order to make significant improvements to the way that smoothness data are
collected and reported, a slow and gradual movement toward profile-based systems
appears warranted, and effective training programs will be necessary to fully
mdoctr~nate such systems into the mainstream of data collection activities.
. ~- ~.
198
Representative terms from entire chapter:
average rectified
