I
I
interstate
IAC
Iowa Administrative Code
IADA
Iowa Automobile Dealer's Association
IAIS
Iowa Interstate Railroad Ltd.
IANR
Iowa Northern Railway Company
IAPS
Iowa Automated Purchasing System
Iowa Automated Permitting System
IASP
Iowa Aviation System Plan
IATR
Iowa Traction Railroad Company
IA zone
initial acceleration zone
IBRC
Innovative Bridge Research and Construction program
IBRD
Innovative Bridge Research and Development program
IC
incidental construction
ICAAP
Iowa's Clean Air Attainment Program
ICEA
Iowa County Engineers Association
ICEOO
Iowa County Engineer's Office Organization
ICN
Iowa Communications Network
ICPA
Iowa Concrete Paving Association
IDMS
integrated data management system
IEDA
Iowa Economic Development Authority (former name was Iowa Department of Economic Development [Iowa DED])
IDNR
Iowa Department of Natural Resources
IFAS
Iowa Financial Accounting System
IFTA
International Fuel Tax Agreement
IGRA
Iowa Good Roads Association
IIHS
Insurance Institute for Highway Safety
IIM
Iowa in Motion
IJR
interchange justification report
ILEA
Iowa Law Enforcement Academy
ILPA
Iowa Limestone Producers Association
IM
instructional memorandum
IMRL
I & M Rail Link, LLC
IMS
intermodal management system
IMTA
Iowa Motor Truck Association
InTrans
Institute for Transportation (at Iowa State University)
IP
information plan
IPERS
Iowa Public Employees Retirement System
IPPE
Individual Performance Plan and Evaluation
IPTA
Iowa Public Transit Association
IRI
International Roughness Index
IRP
International Registration Plan
IRVM
integrated roadside vegetation management
ISAC
Iowa State Association of Counties
ISBL
in-service brightness level
ISD
intersection sight distance
ISTEA
Intermodal Surface Transportation Efficiency Act of 1991
IT
information technology
ITE
Institute of Transportation Engineers
ITS
intelligent transportation systems
ITSA
Intelligent Transportation Society of America
IVHS
intelligent vehicle highway systems
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J
JARC
Job Access Reverse Commute (program)
Jct
junction
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K
KJRY
Keokuk Junction Railway Company
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L
LAN
local area network
LCCA
life cycle cost analysis
LCL
less-than-container load
LCV
longer combination vehicles
LD
light-duty [bus]
LDI
locally determined income
LEF
load equivalency factor
LEP
limited-English proficiency
LI
Legibility Index
LiDAR
light detection and ranging
LF
low frequency
LKS
like kind substitution
LNG
liquefied natural gas
LOS
level of service
LPA
local public agency
LPAC
local public agency coordinator
LPG
liquefied petroleum gas
LRFA
Local Rail Freight Assistance program
LRIS
linear referencing information system
LRS
linear referencing system
LRTF
Living Roadway Trust Fund
LRTP
Long-Range Transportation Plan
LTD
long-term disability
LTL
less than truckload
LUST
leaking underground storage tank
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M
M85
methanol 85 percent, gasoline 15 percent
MAGLEV
magnetic levitation (national high-speed ground transportation)
MARS
mobile accident reporting system
MAASTO
Mid American Association of State Transportation Officials
MBE
minority business enterprise
MCSAP
Motor Carrier Safety Assistance Program
MIDP
mortgage interest differential payment
MIS
Management Information System
MOEs
measures of effectiveness
MOA
memorandum of agreement
MOU
memorandum of understanding
mp
milepost
mpg
miles per gallon
mph
miles per hour
MPO
metropolitan planning organization
MRO
medical review officer
MRVD
Minimum required visibility distance
MSC zone
Merge steering control zone
MSDS
Material Safety Data Sheet
MSL
minor school license
MTAP
Multi-State Technical Assistance Program
MTIP
Metropolitan Transportation Improvement Program
MUTCD
Manual on Uniform Traffic Control Devices
MV
market value
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N
NAAQS
National Ambient Air Quality Standards
NADA
National Automobile Dealers Association
NAFTA
North American Free Trade Agreement
NBI
National Bridge Inventory
NBIS
National Bridge Inspection Standards
NCHRP
National Cooperative Highway Research Program (part of the Transportation Research Board)
NEPA
National Environmental Policy Act of 1969
NF
New Freedom (Program)
NGA
National Governors Association
NHI
National Highway Institute
NHS
National Highway System
NHTSA
National Highway Traffic Safety Administration
NIMBY
not in my backyard
NIMS
National Incident Management System
NIOSH
National Institute for Occupational Safety and Health
NLT
not later than
NOI
notice of intent
NOV
notice of violation
NPIAS
National Plan of Integrated Airport Systems
NRCS
National Register of Historic Places
NRTF
National Recreational Trails Fund
NRVC
Nonresident Violator Compact
NS
Norfolk Southern Railway Company
NSBA
National Steel Bridge Alliance
NTCIP
National Transportation Communications ITS Proposal
NTOR
no turn on red
NTS
National Transportation Statistics
National Travel Statistics
NTSB
National Transportation Safety Board
NWS
National Weather Service
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O
OD
origin-destination
ODAPC
Office of Drug and Alcohol Policy and Compliance (U.S. DOT)
OIG
Office of Inspector General
OL
Operation Lifesaver
OLI
Operation Lifesaver Inc.
O/O
owner occupant
ORV
off-road vehicle
OSHA
Occupational Safety and Health Administration
OT
overtime
OTRB
Over-the-Road Bus Accessibility Program
OWI
operating while intoxicated
